What method has a high of ELISA sensitivity and specificity, and may sometimes give erroneous results? Collection of the sample prior to False-negative seroconversion, to administration of immunosuppressive therapy gives what type of erroneous result? Replacement transfusion, to conditions of defective antibody synthesis such as hypogammaglobulinemia gives what type of erroneous result? Technical errors attributed to improper False-negative handling of kit reagents give what type of erroneous result? Heat inactivation of serum prior to testing, repeated freezing/thawing of specimens or presence of autoreactive antibodies give what type of erroneous result? History of multiple pregnancies, gives False-positive what type of erroneous result? Passive immunoglobulin administration False-positive gives what type of erroneous result? Severe hepatic disease, recent exposure False-positive to certain vaccines, and certain malignancies give what type of erroneous result? In low-risk populations, ELISA tests of a low positive predictive value HIV have what value? Probability that the patient truly has the positive predictive disease if the test result is positive called: According to a commonly accepted should be retested in duplicate by the same ELISA testing algorithm established by the test CDC, when a sample screened for HIV antibody by yields a positive result what should be done? If two out of the three specimens are Western blot reactive by ELISA, then the results must be confirmed by what more specific method? Regardless of results of confirmatory transfusion testing repeatedly reactive units of blood are not used for: What tests are ideal for use in Rapid screen ing tests settings in developing nations?
What method has a high of sensitivity and specificity, and may sometimes give erroneous results? ELISA Collection of the sample prior to seroconversion, to administration of immunosuppressive therapy gives what type of erroneous result? False-negative Replacement transfusion, to conditions of defective antibody synthesis such as hypogammaglobulinemia gives what type of erroneous result? Technical errors attributed to improper handling of kit reagents give what type of erroneous result? False-negative Heat inactivation of serum prior to testing, repeated freezing/thawing of specimens or presence of autoreactive antibodies give what type of erroneous result? History of multiple pregnancies, gives what type of erroneous result? False-positive Passive immunoglobulin administration gives what type of erroneous result? False-positive Severe hepatic disease, recent exposure to certain vaccines, and certain malignancies give what type of erroneous result? False-positive In low-risk populations, ELISA tests of HIV have what value? a low positive predictive value Probability that the patient truly has the disease if the test result is positive called: positive predictive According to a commonly accepted testing algorithm established by the CDC, when a sample screened for HIV antibody by yields a positive result what should be done? should be retested in duplicate by the same ELISA test If two out of the three specimens are reactive by ELISA, then the results must be confirmed by what more specific method? Western blot Regardless of results of confirmatory testing repeatedly reactive units of blood are not used for: transfusion What tests are ideal for use in settings in developing nations? Rapid screen ing tests
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