MLS Ultimate Exam Study Guide | Questions with 100% Correct Answers | Verified | 303 Pages

The pathophysiology of Glazmann thrombasthenia is: A. Deficiency of dense granules B. Deficiency of glycoprotein Ib/IX receptor C. Deficiency of glycoprotein IIb/IIIa receptor D. deficiency of microtubules - C. Deficiency of glycoprotein IIb/IIIa receptor Chagas disease is caused by: A. Trypanosoma cruzi B. Trypanosoma palladium C. Trypanosoma brucei D. None of the above - A. Trypanosoma cruzi What would a patient with a microcyctic/hypochromic anemia most likely have noted on their CBC? A. MCV less than 80 fl B. Hemoglobin of 14.5 gm/dL C. MCHC of 36 gm/dL D. MCH of 28-31 pg/dL - A. MCV less than 80 fl The test of choice and most sensitive assay for use with CSF to diagnose aseptic meningitis caused by enterovirus is which of the following? A. Cell culture B. PCR C. Agntigenemia immunoassay D. Shell vial assay - B. PCR Frequently, DNA probes are used to detect target sequences in Northern or Southern blots. Hybridization occurs between DNA probe and RNA or DNA on the blot, respectively. To ensure that only exactlymatched complementary sequences have bound together, the blot is washed under stringent conditions. Stringency of the wash steps to remove unbound and mismatched probed can be increased by: A. High temperature, high NaCl concentration, and high detergent (i.e. SDS) solution B. High temperature, low NaCl concentraation, and high detergent (i.e. SDS) solution C. High temperature, high NaCl concentration, and low detergent (i.e. SDS) concentration D. Low temperature, high NaCl concentration, and high detergent (i.e. SDS) solution - B. High temperature, low NaCl concentration, and high detergent (i.e. SDS) solution