CLT Patient Assessment & Clinical Evaluation 3

Question 1

A 65-year-old male with chest pain has troponin I of 0.04 ng/mL (reference <0.04). The most appropriate clinical interpretation is:

Accepted Answer

Borderline elevation requiring serial testing and clinical correlation

Answer

A borderline troponin at the 99th percentile requires serial measurements and clinical correlation to evaluate for rising or falling patterns consistent with acute MI.

Question 2

Which urinalysis finding requires the laboratory to immediately notify the ordering clinician regardless of the clinical setting?

Accepted Answer

Greater than 50 RBCs/HPF

Answer

Greater than 50 RBCs/HPF represents heavy hematuria, a critical finding that may indicate serious pathology such as malignancy or glomerulonephritis.

Question 3

A patient's hemoglobin A1c is 10.2%. Which average blood glucose level does this most closely correspond to?

Accepted Answer

Approximately 240 mg/dL

Answer

An HbA1c of 10.2% corresponds to an estimated average glucose of approximately 240 mg/dL over the preceding 2–3 months.

Question 4

A patient with suspected deep vein thrombosis has a D-dimer of 0.28 µg/mL FEU (reference <0.50). The most appropriate clinical interpretation is:

Accepted Answer

Low probability of thrombotic disease

Answer

A normal D-dimer has high negative predictive value, making active thrombosis unlikely and supporting low clinical probability when pre-test probability is low.

Question 5

A specimen from a febrile patient shows WBC count of 28,000/µL with 90% neutrophils and 8% bands. This leukocytosis pattern is most consistent with:

Accepted Answer

Bacterial infection

Answer

Marked neutrophilia with bandemia (left shift) is classically associated with acute bacterial infection driving bone marrow release of immature neutrophils.

(CLT) Clinical Laboratory Technologist Certification Practice Test

(CLT) Clinical Laboratory Technologist Certification Practice Test

CLT Patient Assessment & Clinical Evaluation 3