Analyzing Medical Technologist Flashcards
7 cards from real Medical Technologist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Analyzing Medical Technologist flashcards as text
Which enzyme is MOST elevated in acute myocardial infarction and remains elevated for up to 14 days?
Answer: LDH
LDH (particularly LD1 isoenzyme) remains elevated for 10–14 days post-infarction, making it useful for late diagnosis.
A CSF sample shows xanthochromia. What condition does this MOST suggest?
Answer: Subarachnoid hemorrhage
Xanthochromia (yellow discoloration) results from RBC lysis releasing oxyhemoglobin and bilirubin after subarachnoid hemorrhage.
Which quality control rule indicates a systematic error in an analytical run?
Answer: 2-2s rule on the same side
The 2-2s rule triggered by consecutive QC values on the same side of the mean indicates a systematic shift or bias.
Schistocytes on a peripheral blood smear combined with thrombocytopenia and elevated creatinine MOST suggest:
Answer: TTP/HUS
The triad of microangiopathic hemolytic anemia (schistocytes), thrombocytopenia, and renal involvement defines TTP/HUS.
Which organism causes a characteristic 'safety pin' bipolar staining on Gram stain and is associated with plague?
Answer: Yersinia pestis
Yersinia pestis displays bipolar (safety-pin) staining with Wayson or Giemsa stain and is the causative agent of plague.
A patient's ABO typing shows forward grouping of A but reverse grouping is missing the expected anti-B agglutination. What is the MOST likely cause?
Answer: Hypogammaglobulinemia
Hypogammaglobulinemia reduces isohemagglutinin levels, which can cause weak or absent reverse group reactions.
Which test is the GOLD STANDARD for diagnosing syphilis in a laboratory setting?
Answer: FTA-ABS
The FTA-ABS (fluorescent treponemal antibody absorption) test is the gold standard confirmatory treponemal test for syphilis.