By I. Saturas. Argosy University. 2019.
Colleagues discount 15 gm ketoconazole cream with amex bacteria 100, patients generic 15gm ketoconazole cream fast delivery antibiotics yes or no, ticularly stressful they may wish to modify their practice to other health professionals generic ketoconazole cream 15gm with visa headphones bacteria 700 times, family and friends are appreciative allow for more time to invest in and take care of themselves 15gm ketoconazole cream for sale antibiotic vs antibacterial cream. It can also be helpful to engage the services cian are rarely affected by a medico-legal diffculty. Physicians worries about the effect of a lawsuit or patient complaint on their career are often exaggerated. However, Positive practice changes can enhance patient safety, but physi- even when the medico-legal problem is reported in the me- cians should also avoid the urge to practise overly defensive dia, in most cases it is quickly forgotten by all but the parties medicine with excessive and clinically unwarranted investiga- involved. Case resolution The physician s spouse is also a family physician and is Managing the stress unwavering in their support during the legal process. Kind Physicians should not be ashamed to seek help when facing a words from colleagues and patients helped to restore the medico-legaldiffculty. CanadianMedicalProtectiveAssociation physician s confdence in themselves and the system. Others have argued that even if physicians are allowed to refuse to participate in a procedure on moral or religious grounds they Case must disclose their position and refer the patient to a provider A senior obstetrics and gynecology resident agrees to do who is willing to provide the procedure. A lesbian couple approaches the clinic requesting in vitro fertilization using On the other side of the debate are those who say that the donor sperm. According to the resident s religious beliefs, moral and religious beliefs that underpin most conscientious homosexuality is wrong and children should have both a objections are shared by a large segment of the population. The resident is not willing to partici- Physicians with certain beliefs should not be excluded from pate in the provision of this care. They argue that physicians are more than technicians; they are moral agents whose beliefs and val- ues should receive some consideration. Many physicians have Introduction argued that the Human Rights Code should protect the rights We all have beliefs that shape our view of the world and in- of patients, but also protect the right of physicians not to be fuence our actions. This is particularly problematic in the context of a physician patient relationship. The Canadian Medical Association s policy on induced abor- Physicians and patients enter into this relationship with the un- tion states that a physician should be allowed to both agree derstanding that the needs of the patient will take precedence. Although physicians should be able to practise whose beliefs prevent them from recommending or provid- in a manner consistent with their personal beliefs, they must ing an abortion should inform the patient of this, so that she still meet the standards and expectations of their profession. It does not state In the event of a confict of values it is crucial that physicians that the physician must refer the patient to another physician understand their own beliefs, explore the expectations of their or assist her in fnding another physician a subject that has patients, and familiarize themselves with relevant professional generated much debate (Rodgers and Downie 2006). They suggest that physicians who decline In today s pluralistic society there are a number of legally avail- to provide a medical service on the basis of gender, sexual able and medically acceptable treatments that contravene the orientation or a number of other prohibited grounds (identi- moral code or religious beliefs of particular physicians. Can a fed in the Human Rights Code and the Canadian Charter of physician refuse to participate in these treatments on the basis Rights and Freedoms) will be seen as contravening the Ontario of a conscientious objection? The fact that their refusal is based in moral or religious or referring a patient for a therapeutic abortion, prescribing beliefs would not constitute a defence. The appropriate way for a physi- communicate clearly and promptly with patients about cian to manage these situations is controversial and currently treatments one is unwilling to provide; do not withhold under debate. The issue of therapeutic abortion has been most information from patients about treatments that confict widely discussed and explored in this regard. Let your employer/institution and prepared to participate in certain procedures should colleagues know your intent. Develop a plan to address differ- they become relevant to the patient s clinical situation. Let your patients know This should occur as early as possible and should be as soon as is feasible. The resident imme- available should disclose their concerns to their diately goes to their supervisor and explains that they feel employer or clinical chief and negotiate an appropri- they cannot participate in the requested procedure. After discussion with the program direc- concerns with the institution and their clinical chief tor it is decided that the resident should not complete the before starting their rotation. The resident is still able to complete residency, qualifes as an obstetrician and gynecologist, and now ensures that The most contentious issues are whether a physician must assist their patients know the limits of their practice. Some physicians believe that even generating a referral makes them complicit in the provision of a treatment College of Physicians and Surgeons of Ontario. Physicians or procedure that they believe to be wrong, and point to the and the Ontario Human Rights Code [policy #5-08]. However, some provincial colleges may consider this loadedFiles/downloads/cpsodocuments/policies/policies/ to fall below the standard of care should a complaint arise. Abortion: ensuring access Although a patient s choices should not be limited by a physi- [editorial]. It also seems unlikely that an individual physician would face sanction in this situation, even though it is an unacceptable situation for the patient. Often an institution or region will have to provide the resources needed to connect the patient to the procedure in a timely manner (e. In such cases, do everything possible to offer ap- This chapter will propriate interventions. In some situations, Case the patient or family member might respond only to someone A second-year resident attends to a patient who, in spite of they perceive to have more authority. In such cases, do not take appropriate and excellent care, develops signifcant medi- the situation personally. When the resident shares this news with Return to observe how your supervisor manages the situation the patient and his family, the resident is verbally abused and see if you can re-engage in a collaborative relationship and begins to fear for their own safety. Family members begin to discuss information about the Key strategies to ensure physical safety resident found online and start to make threatening re- Request that your program offer training in non- marks about the resident s family. Ask colleagues for an update, Introduction and read the chart before seeing the patient. Taking the role of patient can be an uncomfortable situation Learn how to read the signs of imminent aggression. When we do fnd ourselves in this role, our Acknowledge the person s distress and ask what emotions may range from simple irritation to frank terror. Meanwhile, physicians are often the bearers of If you perceive danger, terminate the interview bad news. Immediately seek help, including from very fact that they are needed is in almost every circumstance security staff or police as needed. And fnally, along Patients or family members sometimes feel wronged or acutely with their physicians, patients are faced with the stresses of frustrated at not getting what they want. This may provoke accessing care within a health care system that is complex and them to make physical threats or to challenge your professional strained. Offer to listen to the concerns of the patient or fam- These stressors can cause diffculties in communication and ily member again. This chapter will outline some of the acknowledging that you can minimize the threat. Encourage critical aspects of patient physician confict and present strat- the person to put his or her concerns and desired outcomes egies to reduce risk. Consider inviting a third party such as your chief resident or supervisor to help. Finally, respect any request to Verbal aggression make a complaint by directing the person to the appropriate Aggression can be triggered by many emotions, perhaps the channels and indicating that feedback is welcome. If a patient or family member becomes verbally aggressive, acknowledge their feelings gently Intimidation but clearly. It is important to have insight into your own responses to be- At the same time, ask them to help you by remaining calm. Some people are uncomfortable with confict and In other cases, verbal aggression may be a presenting sign to avoid confrontation become submissive. Others respond to bullying with certifcation program offered by the Crisis Prevention Institute a strong reaction that may be experienced by the patient as (www. Clearly explain that you In general, the least experienced members of the team are the want to work collaboratively with the patient, and offer the most at risk of being injured. Emphasize what you are, or are not, willing unless you have been appropriately trained.
Only by avoidance of suspected food substances and a consequent reduction or complete abatement of the symptoms 15gm ketoconazole cream with amex antibiotics for sinus staph infection, which then reoccur with reintroduction of the food discount 15 gm ketoconazole cream free shipping antibiotics for acne thrush, can one be assured of a specific food allergy ketoconazole cream 15gm without prescription antimicrobial nail polish. It should be emphasized that food allergy is rarely an important factor in perennial allergic rhinitis buy generic ketoconazole cream 15gm online antibiotic resistance zone diameter, particularly in adults. Therefore, good medical judgment must be used to avoid the overdiagnosis of food allergy. In addition, skin tests in these conditions are usually negative or do not correlate clinically with the symptoms. In infectious rhinitis and chronic rhinitis, eosinophilia is not common in nasal secretions. The predominant cell found in the nasal secretions in these conditions is the neutrophil, unless there is a coexistent allergic rhinitis. These entities are discussed in greater detail in the last section of this chapter. Rhinitis Medicamentosa A condition that may enter into the differential diagnosis is rhinitis medicamentosa, which results from the overuse of vasoconstricting nose drops. Every patient who presents with the complaint of chronic nasal congestion should be questioned carefully as to the amount and frequency of the use of nose drops. Discontinuing these drugs for a few days results in marked symptomatic improvement. Contraceptives have been incriminated as a cause of perennial rhinitis (53,54) but the evidence for this is meager, except in cases in which other history factors strongly implicate causality. It is not presently recommended that women with rhinitis stop using oral contraceptives. Pregnancy Congestion of the nasal mucosa is a normal physiologic change in pregnancy. This is presumably a major factor in the development in some women of rhinitis of pregnancy, a syndrome of nasal congestion and vasomotor instability limited to the gestational period ( 55). The rhinitis characteristically begins at the end of the first trimester and then disappears immediately after delivery. Patients with or without a history of chronic nasal symptoms may develop rhinitis medicamentosa or acute pharyngitis or sinusitis during pregnancy. In one series, 32% of 79 pregnant women surveyed reported frequent or constant nasal problems during pregnancy ( 56). Foreign Body On rare occasions, a patient with a foreign body in the nose may be thought to have chronic allergic rhinitis. Foreign bodies usually present as unilateral nasal obstruction accompanied by a foul, purulent nasal discharge. Examination is best done after secretions are removed so that the foreign body may be visualized. Physical Obstruction Careful physical examination of the nasal cavity should be performed to exclude septal deviation, enlarged adenoids, choanal atresia, and nasal polyps as the cause of nasal congestion. Because spinal fluid contains sugar, and mucus does not, testing for the presence of glucose should be done to make the diagnosis. They are friable and more vascular than nasal polyps, and they bleed more readily. They occur either unilaterally or bilaterally and frequently involve the nasal septum as well as the lateral wall of the nose. Angiofibromas are highly vascular tumors that bleed excessively when injured or when a biopsy is done. They are generally unilateral in location, may occur at any site within the nasal chamber, are firm, and usually bleed with manipulation. Hypothyroidism A careful review of systems is important to exclude hypothyroidism as a cause of nasal congestion. Ciliary Disorders With the dyskinetic cilia syndrome, patients may experience rhinitis symptoms secondary to abnormalities of mucociliary transport. Rare patients may have the triad of bronchiectasis, sinusitis, and situs inversus known as Kartagener syndrome ( 59). Most patients develop symptoms before the age of 20 years, with the highest rate of increase of onset of symptoms occurring between the ages of 12 and 15 years ( 8). One study suggests that more than one third of patients with allergic rhinitis were better over a 10-year period, but most were worse ( 61). A chance for remission was better in those with seasonal allergic rhinitis and if the disease was present for less than 5 years ( 62). The possibility of developing asthma as a sequela to allergic rhinitis may worry the patient or the parents. It has been generally stated that about 30% of patients with allergic rhinitis not treated with specific immunotherapy eventually develop allergic asthma. A survey of an entire city, however, showed that only 7% of those with allergic rhinitis developed asthma as a late sequela ( 63). In most patients with both allergic rhinitis and asthma, the asthmatic condition develops before the onset of allergic rhinitis, or the two conditions appear almost simultaneously. It is frequently stated that the individual with more severe allergic rhinitis has a greater risk for developing asthma, but clear evidence for this is lacking. The symptoms of allergic rhinitis and skin test reactivity tend to wane with increasing age. In most patients, however, skin tests remain positive despite symptomatic improvement; therefore, symptomatic improvement is not necessarily directly correlated with skin test conversion to negative. Avoidance Therapy Complete avoidance of an allergen results in a cure when there is only a single allergen. For this reason, attempts should be made to minimize contact with any important allergen, regardless of what other mode of treatment is instituted. Allergic rhinitis associated with a household pet can be controlled completely by removing the pet from the home. If the patient is allergic to feathers, he or she should be advised to change the feather pillow to a Dacron pillow, or to cover the pillow with encasings. Mold-sensitive patients occasionally note their precipitation or aggravation of symptoms after ingestion of certain foods having a high mold content. Tips for patients with allergic rhinitis In most cases of allergic rhinitis, complete avoidance therapy is difficult, if not impossible, because aeroallergens are so widely distributed. Attempts to eradicate sources of pollen or molds have not proved to be significantly effective. In the case of house dust mite allergy, complete avoidance is not possible in most climates, but certain measures decrease the exposure to antigen. Instructions for a dust-control program also should be given to the patient with house dust mite sensitivity. The most practical program is to make the bedroom as dust free as possible, so that the patient may have the sleeping area as a controlled environment. The patient should wear a mask when house cleaning if such activity precipitates significant symptoms. These simple measures are often enough to enable the patient to have fewer and milder symptoms. Pharmacologic Therapy Antihistamines Antihistamines are the foundation of symptomatic therapy for allergic rhinitis and are most useful in controlling the symptoms of sneezing, rhinorrhea, and pruritus that occur in allergic rhinitis. They are less effective, however, against the nasal obstruction and eye symptoms in these patients. Antihistamines are compounds of varied chemical structures that have the property of antagonizing some of the actions of histamine ( 63).
The survey sought to establish levels of understanding by asking respondents to indicate whether a series of statements around antibiotic use were true or false buy generic ketoconazole cream 15gm bacteria joke. Similarly to the survey findings related to appropriate antibiotic use purchase ketoconazole cream 15 gm fast delivery bacteria cells, the results suggest that there are high levels of misunderstanding in this area buy ketoconazole cream 15 gm amex antibiotic resistance multiple choice questions. While large proportions of respondents correctly identify some statements cheap 15gm ketoconazole cream with mastercard antibiotic metronidazole, even larger numbers incorrectly identify others. For example, more than three quarters (76%) of respondents believe that antibiotic resistance occurs when their body becomes resistant to antibiotics. Encouragingly, the majority of respondents in all cases agreed that the actions could help, with numbers rising to 91% across the 12 countries in relation to People should wash their hands regularly. However, when respondents were then asked whether or not they agreed with a series of statements on the scale of the problem of antibiotic resistance, the results reveal some misconceptions and misunderstandings. Notable is the fact that 63% of respondents believe they are not at risk of an antibiotic-resistant infection, as long as they take their antibiotics correctly, which is not in fact the case. Antibiotic-resistant bacteria can spread from person to person, with the potential to affect anyone, of any age, in any country. The findings show considerable variation between countries 89% of those surveyed in Sudan and 81% in Nigeria believe that taking antibiotics correctly protects them from risk, compared to 27% in Barbados. Also notable is the fact that 57% agree with the statement: There is not much people like me can do to stop antibiotic resistance. This is concerning, as addressing the problem of antibiotic resistance in fact requires action from everyone, from members of the public and policy makers, to health and agricultural professionals. Doctorate degree S6 Which of following best describes your total household income, before tax? Can t remember 3) On that occasion, did you get advice from a doctor, nurse or pharmacist on how to take them? Single Code It s okay to use antibiotics that were given to a friend or family member, as long as they were used to treat the same illness 1. Single Code It s okay to buy the same antibiotics, or request these from a doctor, if you re sick and they helped you get better when you had the same symptoms before 1. Don t know 47 #AntibioticResistance 8) Do you think these conditions can be treated with antibiotics? Can t remember 11) Please indicate whether you think the following statements are true or false Single Code per statement Rotate order asked 1. Antibiotic resistance occurs when your body becomes resistant to antibiotics and they no longer work as well 2. Many infections are becoming increasingly resistant to treatment by antibiotics 3. If bacteria are resistant to antibiotics, it can be very difficult or impossible to treat the infections they cause 4. Antibiotic resistance is only a problem for people who take antibiotics regularly 7. Bacteria which are resistant to antibiotics can be spread from person to person 8. Antibiotic-resistant infections could make medical procedures like surgery, organ transplants and cancer treatment much more dangerous 49 #AntibioticResistance 12) On the scale shown, how much do you agree the following actions would help address the problem of antibiotic resistance? The mention of specic companies or of certain manufacturers products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. The latter used to consider the brain as a black box where only the input and output were known but not at all the neuronal com- ponents and the way they interact with each other. At the beginning of the third millennium, due to pro- longed ageing, neurodevelopmental disorders are growing and a much deeper knowledge of the brain is necessary. Scientic and technological research, from molecular to behavioural levels, have been carried out in many different places but they have not been developed in a really interdisciplinary way. Research should be based on the convergence of different interconnected scientic sectors, not in isolation, as was the case in the past. As this report demonstrates, the burden of neurological disorders is reach- ing a signicant proportion in countries with a growing percentage of the population over 65 years old. With this report go my best wishes that it be disseminated worldwide and that it receive the deserved attention of the Global Health Community in all the countries of the world. The world health report 2001 Mental health: new understanding, new hope is an advocacy instrument to shed light on the public health as- pects of mental disorders, and the report Neuroscience of psychoactive substance use and dependence produced by the department in 2004 tackles the area of substance abuse and alcohol. A clear message emerges that unless immediate action is taken globally, the neurological burden is expected to become an even more serious and unmanageable problem in all countries. There are several gaps in understanding the many issues related to neurological disorders, but we already know enough about their nature and treatment to be able to shape effective policy responses to some of the most prevalent among them. To ll the vast gap in the knowledge concerning the public health aspects of neurologi- cal disorders, this document Neurological disorders: public health challenges fulls two roles. On one hand, it provides comprehensive information to the policy-makers and on the other hand, it can also be used as an awareness-raising tool. It is the result of a huge effort bringing together the most signicant international nongovernmental organizations working in the areas of various neurological disorders, both in a professional capacity and in caring for people affected by the conditions. This exercise thus demonstrates that such collaboration is not only possible but can also be very productive. The document is distinctive in its presentation as it provides the public health per- spective for neurological disorders in general and presents fresh and updated estimates and predictions of the global burden borne by them. The document makes a signicant contribution to the furthering of knowledge about neurological disorders. We hope it will facilitate increased cooperation and innovation and inspire commitment to preventing these debilitating disorders and providing the best possible care for people who suffer from them. Kennedy (Neuroinfections); Redda Tekle Haimanot (Neurological disorders associated with malnutrition); Ralf Baron, Maija Haanp (Pain associated with neurological disorders); Zvezdan Pirtosek, Bhim S. This study found that the burden of neuro- logical disorders was seriously underestimated by traditional epidemiological and health statistical methods that take into account only mortality rates but not disability rates. With awareness of the massive burden associated with neurological disorders came the recognition that neurological services and resources were disproportionately scarce, especially in low income and developing countries. Furthermore, a large body of evidence shows that policy-makers and health-care providers may be unprepared to cope with the predicted rise in the prevalence of neurological and other chronic disorders and the dis- ability resulting from the extension of life expectancy and ageing of populations globally (2, 3). This global initiative has revealed a paucity of information on the burden of neurological disorders and a lack of policies, programmes and resources for their management (4 6). The survey collected information from experts on several aspects of the provision of neuro- logical care around the world, ranging from frequency of neurological disorders to the availability of neurological services across countries and settings. The ndings show that resources are clearly inadequate for patients with neurological disorders in most parts of the world; they highlight inequalities in the access to neurological care across differ- ent populations, especially in those living in low income countries and in the developing regions of the world (7). This report takes the collaboration with nongovernmental organizations and the Atlas Project one step further. It aims to inform governments, public health institutions, nongovernmental organizations and others so as to help formulate public health policies directed at neurological disorders and to guide informed advocacy. These common disorders were selected after discussion with several ex- perts and nongovernmental organizations and represent a substantial component of the global burden of neurological disorders. The report is based on signicant contributions by many individuals and organizations spanning all continents. Their names are indicated in the Acknowledgements section, and their input is acknowledged with thanks. Public health is dened as the science and practice of protecting and improving the health of the population through prevention, promotion, health education, and management of communicable and noncommunicable diseases including neurological disorders. In other words, public health is viewed as a comprehensive approach concerned with the health of the community as a whole rather than with medical health care that deals primarily with treatment of individuals. The focus of public health interventions could be primary, secondary or tertiary prevention.
Patch Tests Patch and photo patch tests are of value in cases of contact dermatitis to topically applied medicaments discount 15gm ketoconazole cream treatment for sinus infection home remedies, even if the eruption was provoked by systemic administration of the drug purchase ketoconazole cream 15 gm amex antibiotic resistance vre. In photoallergic reactions discount ketoconazole cream 15gm without prescription topical antibiotics for acne side effects, the patch test may become positive only after subsequent exposure to an erythemic dose of ultraviolet light (photo patch testing) order 15gm ketoconazole cream fast delivery virus 68 florida. The value of the patch test as a diagnostic tool in systemic drug reactions is unclear. However, some patients who have developed maculopapular or eczematous rashes after the administration of carbamazepine, practolol, and diazepam have consistently demonstrated positive patch tests to these drugs ( 216). Incremental Provocative Test Dosing Direct challenge of the patient with a test dose of the drug (provocative test dosing) remains the only absolute method to establish or exclude an etiologic relationship between most suspected drugs and the clinical manifestations produced. In certain situations, it is essential to determine whether a patient reacts to the drug, especially if there are no acceptable substitutes. The procedure is potentially dangerous and is inadvisable without appropriate consultation and considerable experience in management of hypersensitivity phenomena. In fact, in one large series, patients were rechallenged with a drug suspected of producing a cutaneous reaction; 86% recurred, 11% of which were severe reactions (97). The principle of incremental test dosing, also known as graded challenge, is to administer sufficiently small doses that would not cause a serious reaction initially, and to increase the dose by safe increments (usually 2- to 10-fold) over a matter of hours or days until a therapeutic dose is achieved ( 2). Generally, the initial starting dose is 1% of the therapeutic dose; it is 100- to 1,000-fold less if the previous reaction was severe. If a reaction occurs during test dosing, a decision must be made as to whether the drug should be terminated or desensitization attempted. With respect to test dosing, the probability of a true allergic reaction is low, but the clinician is concerned about the possibility of such a reaction. Desensitization is the procedure employed to administer a drug to a patient in whom true allergy has been reasonably well established, specifically IgE-mediated, immediate hypersensitivity. Before proceeding with drug challenges, informed consent must be obtained and the information recorded in the medical record. Appropriate specialty consultation to underscore the need for the drug is desirable, if available. Hospitalization is usually required, and emergency equipment to treat anaphylaxis must be available. The drug challenge is performed immediately before treatment, not weeks or months in advance of therapy. Also, prophylactic treatment with antihistamines and corticosteroids before drug challenges is not recommended because these mask more mild reactions that may occur at low doses, risking a more serious reaction at higher doses. In Vitro Testing Testing in vitro to detect drug hypersensitivity has the obvious advantage of avoiding the inherent dangers in challenging patients with the drug. Although the demonstration of the drug-specific IgE is usually considered significant, the presence of other drug-specific immunoglobulin classes or cell-mediated allergy correlates poorly with a clinical adverse reaction. Drug-specific immune responses occur more frequently than clinical allergic drug reactions. Drug-specific Immunoglobulin E Antibodies The in vitro detection of drug-specific IgE antibodies is generally less sensitive than skin testing with the suspected agent. Further, this approach, as was true for skin testing with drugs, is hampered by the lack of information regarding relevant drug metabolites that are immunogenic. If positive, these tests may be helpful in identifying patients at risk; if negative, they do not exclude the possibility. Drug-specific Immunoglobulin G and Immunoglobulin M Antibodies With the exception of drug-induced immune cytopenias, there is often little correlation between the presence of drug-specific IgG and IgM antibodies and other drug-induced immunopathologic reactions. Drug-induced immune cytopenias afford an opportunity to test affected cells in vitro. Such testing should be performed as soon as the suspicion arises because the antibodies may disappear rapidly after withdrawal of the drug. For drug-induced immune hemolysis, a positive Coombs test is a useful screening procedure and may be followed by tests for drug-specific antibodies if available. Antiplatelet antibodies are best detected by the complement fixation test and the liberation of platelet factor 3. In vitro tests for drug-induced immune agranulocytosis are often disappointing because leukoagglutinins disappear very rapidly and are occasionally present in neutropenic conditions where no drug is involved. Lymphocyte Blast Transformation T-lymphocyte mediated reactions (delayed hypersensitivity) have been suspected in some patients with drug allergy. Lymphocyte blastogenesis (lymphocyte transformation test) has been suggested as an in vitro diagnostic test for such reactions. A variation on this assay measures the T-lymphocyte cytokine production rather than proliferation ( 221). There is disagreement regarding the value of this procedure in the diagnosis of drug allergy. However, because there appears to be a high incidence of false-negative and false-positive results, these tests have little clinical relevance ( 222). Other Tests The measurement of mast cell mediator release during drug-induced anaphylaxis or anaphylactoid reactions appears to be promising. Tryptase is a neutral protease that is specifically released by mast cells and remains in the serum for at least 3 hours after the reaction ( 223). After a reaction, several serum samples should be obtained during the first 8 to 12 hours. A positive test for tryptase is helpful, but a negative result does not rule out an immediate generalized reaction. Complement activation and immune complex assays are other tests that may be helpful in the evaluation of drug-induced serum sickness like reactions. Immunoglobulins and complement have been demonstrated in drug-induced immunologic nephritis, but it is often unclear whether the drugs themselves are present in the immune complexes (224). Withdrawal of the Suspected Drug With a reasonable history suggesting drug allergy and the usual lack of objective tests to support the diagnosis, further clinical evaluation involves withdrawal of the suspected drugs, followed by prompt resolution of the reaction, often within a few days or weeks. This is presumptive evidence of drug allergy and usually suffices for most clinical purposes. For drugs that are necessary, an attempt should be made to switch to alternative, non cross-reacting agents. After the reaction subsides, resumption of treatment with the drug least likely to have caused the problem may be considered, if that drug is sufficiently important. However, there may be risk for anaphylaxis if the causative agent is resumed after interruption of therapy. There may be circumstances in which it would be detrimental to discontinue a drug when there is no suitable alternative available. The physician must then consider whether the drug reaction or the disease poses a greater risk. If the reaction is mild and does not appear to be progressive, it may be desirable to treat the reaction symptomatically and continue therapy. For example, in patients being treated with a b-lactam antibiotic, the appearance of urticaria may be managed with antihistamines or low-dose prednisone. However, interruption of therapy for 24 to 48 hours may result in anaphylaxis if treatment is resumed. Frequently, no additional treatment is necessary, and the clinical manifestations often subside within a few days or weeks without significant morbidity. If the reaction is not severe, and more than one drug is a candidate, withdrawal of one drug at a time may clarify the situation.
8 of 10 - Review by I. Saturas
Votes: 222 votes
Total customer reviews: 222