AAB MT Immunology Review Exam Questions and Answers

AAB MT Immunology Review Exam Questions and Answers Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction - Ans ️️ -B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin (BCG) vaccination C. Can be used instead of purified protein derivative (PPD) D. Cannot differentiate latent TB from active tuberculosis infection - Ans ️️ -A. Can be used in patients with active tuberculosis disease symptoms Polymerase chain reaction (PCR) copies DNA through repeated cycles of three basic steps. What is the correct order of these steps? A. Extraction, annealing, denaturation B. Denaturation, annealing, extraction C. Denaturation, extension, annealing D. Denaturation, annealing, extension - Ans ️️ -D. Denaturation, annealing, extension The core (genome) of the HIV virion contains: A. DNA B. RNA C. Both RNA and DNA D. Neither RNA or DNA - Ans ️️ -B. RNA Which of the following autoantibodies would be usually found in a patient with Hashimoto's thyroiditis? A. Thyroid-stimulating hormone receptor antibodies (TRAbs) B. Antithyroid peroxidase (TPO) C. Islet cell antibodies D. Antitransglutaminase (tTG) - Ans ️️ -B. Antithyroid peroxidase (TPO) TRAbs are associated with Grave's dz, Islet cell antibodies are associated with Type 1 diabetes mellitus, and tTG is associated with Celiac dz. Which of the following blood tests can be collected in a serum separation tube (SST)? A. CBC B. HBsAg C. PT D. ABO group/Rh typing - Ans ️️ -B. HBsAg What two glycoproteins are expressed on the surface of influenza A viruses and are used for subtyping of the viruses? A. Hemagglutinin and Neuraminidase B. Glycoprotein120 (gp120) and Protein 24 (p24) C. Glycoprotein 41 (gp41) and glycoprotein 120 (gp120) D. Neuraminidase and protein 24(p24) - Ans ️️ -A. Hemagglutinin and Neuraminidase Severe combined immunodeficiency (SCID) is characterized by all of the following immunodeficiencies EXCEP