Microbiology MCQs Mock Test – Chapter 44

A false-negative cold agglutinin test may result if:

Which of these is more complex than viruses?

The immunoglobulin class associated with hypersensitivity or allergenic reactions:

Heterophile antibody of infectious mononucleosis is absorbed by:

Which of the following Hbg configurations is characteristic of Hgb H?

The immunoglobin isotype that is bound to mast cells or basophils is

Which of the following is an important cellular mediator of immune complex tissue injury?

In direct fluorescent antibody screening for the diagnosis of primary syphilis, which of the following labels is used?

Autoagglutination of red cells at room temp can result in which of the following?

A rubella enzyme immunoassay which utilizes patient serum, rubella antigen, and enzyme bound to antibuman gamma globulin describes a/an ________ assay.

Infectious mononucleosis is a disease caused by a

Which of the following immunoglobulins is the most efficient agglutinator?

Which of the following causes 90% of post-transfusion hepatitis?

The causative agent for rheumatoid arthritis is:

Antibodies are secreted by

Cells involved in phagocytosis include: 1. Polymorphonuclear neutrophil 2. Monocytes 3. Histiocytes 4. Macrophages

A substrate is first exposed to patient’s serum, then exposed to a fluorescent antihuman immunoglobulin. The procedure described is:

Which of these is not a viral disease?

If 3 ml of a butter were added to a tube containing 1 ml of a standard reagent, the resulting dilution of the standard reagent would be:

How many kinds of DNA viruses exist in nature?

While performing a test for febrile agglutinins, an analyst observes that the first 3 tubes have no reaction, the next 4 tubes have agglutination, and the last 3 tubes show no agglutination. Tubes #1, 2 and 3 indicate:

In which stage of erythrocytic maturation does Hgb formation begin?

In which age group would 60% lymphocytes be a normal finding?

Which of the following forms of exposure places a technologist at the highest risk for infection with human immunodeficiency virus (HIV)?

Which one of the following disorders is associted with autoantibodies to phospholipid?

The Rheumatoid Factor:

An important use of non-terponemal antibody (NTA) testing is in:

The rapid rise, elevated level, and prolonged production of antibody following a repeat exposure to antigen is called:

Antibody class and antibody subclass is determined by major physiochemical differences and antigenic variation found primarily in the

Which of the following can shift the hemoglobin-oxygen dissociation curve to the right?

Antigenic determinants for the RA factor are found on the patient’s own:

IgA is found in: 1. Saliva 2. Tears 3. Colostrum 4. Serum

A 26 year old nurse developed fatigue, a low-grade fever, polyarthralgias and urticaria. Two months earlier she has cared for a patient with hepatitis. Which of the following findings are liely to be observed in this nurse?

Detection of which of the following substances is most useful to monitor the course of a patient with testicular cancer?

The most prevalent job related disease hazard in clinical laboratories is:

The immunoglobulin isotype that is bound to mast cells or basophils is

The initial immune response following fetal infection with rubella is in the production of:

The more specific immunoassay procedure for serum HCG utilizes antisera against whivh subunit of HCG?

All of the following events are mediated by both the alternative and classical pathways except:

The cold agglutinin test is used for the diagnosis of infection with

With which of the following immunoglobulin classes is secretory component or transport piece associated?

The visible serologic reaction between soluble antigen and its specific antibody is

A serologic test for syphilis that depends upon the detection of cardiolipin-lecithin-cholesterol antigen is:

Which of the following describes the relationship between test data and analyte concentration in the classical competitive binding immunoassay:

The antigen marker most closely associated with transmissibility of HBV infection is:

Which of the following results on an automated differential suggests that a peripheral smear should be review manually?

The serologic test for syphilis recommended for detecting antibody in cerebrospinal fluid is

Which of the following diseases is associated with a high circulating concentration of T3 and T4, but a low concentration of TSH?

When testing a patient for HIV antibody, which of the following is used to confirm a positive screening test?

Which statement(s) is/are correct concerning the nephelometric determination of immunoglobulin levels? 1. Uses a beam of light to pass through a suspension in a cuvette. 2. Utilizes the precipitation of soluble antigen with its antibody. 3. Measures light that has been scattered as it passes through a suspension. 4. Most easily detects large particles formed by the reactants.