Urinalysis Flashcards
7 cards from real RMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Urinalysis flashcards as text
A specimen has a positive leukocyte esterase result. What does this indicate?
Answer: Presence of white blood cells
Leukocyte esterase is released by white blood cells, suggesting inflammation or infection.
Which crystal type is commonly seen in acidic urine and shaped like an envelope?
Answer: Calcium oxalate
Calcium oxalate crystals appear as envelope-shaped structures in acidic urine.
When should a urine specimen be refrigerated if testing is delayed?
Answer: If it cannot be tested within one hour
Specimens not tested within one hour should be refrigerated to preserve their integrity.
A high specific gravity reading on a reagent strip most likely indicates what?
Answer: Concentrated urine from dehydration
High specific gravity reflects concentrated urine, often from dehydration.
Which structure seen during microscopic exam forms in the renal tubules and indicates kidney involvement?
Answer: Casts
Casts form within renal tubules and signal kidney pathology when present.
A positive bilirubin result on a reagent strip suggests a problem with which organ?
Answer: Liver
Bilirubin in urine often indicates liver disease or bile duct obstruction.
Why must reagent strip bottles be kept tightly capped with the desiccant inside?
Answer: Moisture degrades the reactive pads
Moisture exposure deteriorates reagent pads and produces inaccurate results.