VTNE Clinical Laboratory Procedures 2

Question 1

Which anticoagulant is found in the purple-top (EDTA) tube and is the preferred choice for complete blood count (CBC) samples?

Accepted Answer

EDTA (ethylenediaminetetraacetic acid)

Answer

EDTA chelates calcium and preserves cell morphology, making it the anticoagulant of choice for CBC analysis.

Question 2

A urine specific gravity of 1.045 in a dog most likely indicates:

Accepted Answer

Concentrated urine with possible dehydration

Answer

A specific gravity of 1.045 is highly concentrated and may indicate dehydration or renal compensatory response in dogs.

Question 3

When performing a blood smear differential, the technician counts 100 leukocytes and finds 75 neutrophils, 15 lymphocytes, 7 monocytes, and 3 eosinophils. Which finding is abnormal for a dog?

Accepted Answer

75% neutrophils

Answer

While 75% neutrophils is within the high end of normal, combined with low lymphocytes it may suggest a stress leukogram; however, mild neutrophilia alone can be normal — the pattern must be assessed in context.

Question 4

Which serum chemistry value is most useful for evaluating glomerular filtration rate (GFR) in cats?

Accepted Answer

SDMA (symmetric dimethylarginine)

Answer

SDMA is a sensitive renal biomarker that reflects GFR and can detect kidney dysfunction earlier than creatinine in cats.

Question 5

A fecal flotation using zinc sulfate solution is BEST suited for detecting which parasite?

Accepted Answer

Giardia cysts

Answer

Zinc sulfate flotation preserves the morphology of Giardia cysts better than other flotation solutions.

VTNE - Veterinary Technician National Examination Practice Test

VTNE - Veterinary Technician National Examination Practice Test

VTNE Clinical Laboratory Procedures 2