AAVSB Clinical Pathology and Laboratory Diagnostics 2

Question 1

Which coagulation test specifically evaluates the extrinsic and common pathways?

Accepted Answer

Prothrombin time (PT)

Answer

Activated clotting time (ACT)

Answer

Activated partial thromboplastin time (aPTT)

Answer

Platelet count

Question 2

A cat presents with marked thrombocytopenia (platelets 12,000/µL). Which clinical sign is most expected?

Accepted Answer

Petechiae and ecchymoses

Answer

Deep tissue hematomas

Answer

Prolonged PT with normal aPTT

Answer

Lymphadenopathy

Question 3

A dog with parvovirus has a WBC of 1,200/µL with 80% neutrophils and a left shift. How is this finding classified?

Accepted Answer

Neutropenia with degenerative left shift

Answer

Neutrophilia with degenerative left shift

Answer

Neutrophilia with regenerative left shift

Answer

Leukocytosis with bandemia

Question 4

Which fecal flotation solution has the highest specific gravity and is best for recovering most parasite ova?

Accepted Answer

Sheather's sugar solution (SG 1.27)

Answer

Zinc sulfate solution (SG 1.18)

Answer

Sodium nitrate solution (SG 1.20)

Answer

Saturated sodium chloride (SG 1.20)

Question 5

A bovine blood sample shows packed cell volume (PCV) of 12% and plasma that appears pink. What does the pink plasma indicate?

Accepted Answer

Intravascular hemolysis releasing free hemoglobin

Answer

Lipemia from a recent meal

Answer

Icterus from biliary obstruction

Answer

Hypoproteinemia

Question 6

Which test is considered the gold standard for diagnosing feline hyperthyroidism?

Accepted Answer

Total T4 (TT4)

Answer

Free T4 by equilibrium dialysis

Answer

TSH stimulation test

Answer

Nuclear scintigraphy