Diagnostic Procedures Flashcards

7 cards from real AMCA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Diagnostic Procedures flashcards as text

Which laboratory test is primarily used to evaluate kidney function by measuring the waste product filtered by the glomeruli?
Answer: Creatinine
Serum creatinine is the primary marker of glomerular filtration and overall kidney function.
During a capillary blood collection from an infant's heel, the puncture should be made:
Answer: On the medial or lateral plantar surface
CLSI guidelines specify the medial or lateral plantar surface of the heel to avoid the calcaneus bone and prevent osteomyelitis.
Which test is used to diagnose H. pylori infection via breath analysis?
Answer: Urea breath test
The urea breath test detects CO2 labeled with carbon-13 or -14 produced when H. pylori metabolizes ingested urea.
A specimen labeled 'STAT' in the laboratory means:
Answer: Immediate processing required
STAT (Latin: statim) means immediately; these specimens receive the highest processing priority.
Which electrocardiogram lead is considered the primary monitoring lead in most clinical settings?
Answer: Lead II
Lead II is closest to the electrical axis of the heart and provides the clearest P waves, making it the standard monitoring lead.
A Wright-stained peripheral blood smear is used to evaluate:
Answer: Blood cell morphology
Wright stain differentiates and highlights the morphology of red blood cells, white blood cells, and platelets on a peripheral smear.
Which of the following results would indicate hemolysis in a blood specimen?
Answer: Pink or red-tinged serum
Hemolysis releases hemoglobin from ruptured RBCs, causing serum to appear pink or red, which can interfere with many chemistry tests.