FREE ASCP Medical Laboratory Technician Questions and Answers Flashcards
6 cards from real Medical Laboratory Technician Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 FREE ASCP Medical Laboratory Technician Questions and Answers flashcards as text
Which staining technique is used to identify acid-fast bacilli such as Mycobacterium tuberculosis?
Answer: Ziehl-Neelsen stain
The Ziehl-Neelsen (carbol fuchsin) stain uses heat to drive the dye into the waxy mycolic acid cell wall, making acid-fast bacilli appear red against a blue background.
A blood bank technologist identifies an antibody that reacts at 37 degrees C and in the antiglobulin phase. The antibody shows dosage and is destroyed by enzyme treatment of reagent cells. Which antibody is most likely?
Answer: Anti-Fya
Anti-Fya is a clinically significant IgG antibody that reacts at 37 degrees C and AHG phase, demonstrates dosage, and is characteristically destroyed by enzyme treatment.
What is the primary purpose of performing a differential white blood cell count on a peripheral blood smear?
Answer: To classify and quantify the types of white blood cells present
The differential count classifies leukocytes into their specific types (neutrophils, lymphocytes, monocytes, eosinophils, basophils) and identifies any abnormal cells.
An elevated serum creatine kinase-MB (CK-MB) level combined with a significantly elevated troponin I is most indicative of which condition?
Answer: Acute myocardial infarction
The combination of elevated CK-MB and troponin I is highly specific for acute myocardial infarction, as both are released from damaged cardiac muscle tissue.
Which specimen collection tube contains the anticoagulant EDTA and is used for complete blood count testing?
Answer: Lavender (purple) top
Lavender or purple-top tubes contain EDTA, which chelates calcium to prevent clotting and preserves cell morphology, making them standard for CBC testing.
During ABO blood typing, a patient's forward type shows agglutination with anti-B reagent only, and the reverse type shows agglutination with A1 cells only. What is the patient's blood type?
Answer: Type B
Agglutination with anti-B in forward typing indicates B antigen on red cells, and agglutination with A1 cells in reverse typing confirms anti-A in the serum, consistent with type B.