AMCA Diagnostic Procedures 3

Question 1

Which laboratory test is primarily used to evaluate kidney function by measuring the waste product filtered by the glomeruli?

Accepted Answer

Creatinine

Answer

Serum creatinine is the primary marker of glomerular filtration and overall kidney function.

Question 2

During a capillary blood collection from an infant's heel, the puncture should be made:

Accepted Answer

On the medial or lateral plantar surface

Answer

CLSI guidelines specify the medial or lateral plantar surface of the heel to avoid the calcaneus bone and prevent osteomyelitis.

Question 3

Which test is used to diagnose H. pylori infection via breath analysis?

Accepted Answer

Urea breath test

Answer

The urea breath test detects CO2 labeled with carbon-13 or -14 produced when H. pylori metabolizes ingested urea.

Question 4

A specimen labeled 'STAT' in the laboratory means:

Accepted Answer

Immediate processing required

Answer

STAT (Latin: statim) means immediately; these specimens receive the highest processing priority.

Question 5

Which electrocardiogram lead is considered the primary monitoring lead in most clinical settings?

Accepted Answer

Lead II

Answer

Lead II is closest to the electrical axis of the heart and provides the clearest P waves, making it the standard monitoring lead.

(AMCA) American Medical Certification Association Practice Test