Clinical Pathology and Laboratory Diagnostics Flashcards
6 cards from real AAVSB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Clinical Pathology and Laboratory Diagnostics flashcards as text
A canine urinalysis reveals waxy casts. What do waxy casts indicate?
Answer: Chronic, severe renal disease with stasis
Waxy casts form from degenerated granular casts after prolonged stasis, indicating chronic, severe renal tubular disease.
Which finding on a liver biopsy cytology is pathognomonic for hepatic lipidosis in cats?
Answer: Widespread hepatocyte vacuolation with lipid droplets
Feline hepatic lipidosis is characterized by massive cytoplasmic lipid vacuolation of hepatocytes, visible on fine needle aspirate cytology.
A horse has a CSF tap showing xanthochromic fluid with elevated protein. What does xanthochromia indicate?
Answer: Previous hemorrhage with hemoglobin breakdown products
Xanthochromia (yellow discoloration) of CSF results from bilirubin produced by breakdown of red blood cells from a prior hemorrhage.
Which biochemical marker best evaluates glomerular filtration rate (GFR) in dogs?
Answer: Serum creatinine
Serum creatinine is the most commonly used marker for GFR estimation because it is freely filtered and not reabsorbed by the tubules.
What is the significance of a sodium:potassium ratio below 27:1 in a dog?
Answer: Suggests hypoadrenocorticism (Addison's disease)
A Na:K ratio below 27:1 is a classic screening indicator for Addison's disease, reflecting mineralocorticoid deficiency.
Which internal parasite egg is identified by its embryonated appearance with a thick, pitted shell on fecal flotation in cattle?
Answer: Toxocara vitulorum
Toxocara vitulorum produces large, round eggs with a pitted outer shell that are embryonated when passed, distinguishing them from other bovine ova.