Clinical Chemistry Flashcards
6 cards from real Medical Technologist Test 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 Chemistry flashcards as text
Which lipoprotein is considered protective against cardiovascular disease?
Answer: HDL
HDL (high-density lipoprotein) transports cholesterol from peripheral tissues back to the liver (reverse cholesterol transport), reducing atherosclerosis risk.
A serum sodium of 125 mEq/L with dilute urine in a cancer patient suggests which diagnosis?
Answer: SIADH
SIADH (syndrome of inappropriate ADH) causes hyponatremia with inappropriately concentrated urine, commonly paraneoplastic.
Which test is used to evaluate liver synthetic function?
Answer: Prothrombin time (PT)
The liver synthesizes clotting factors, so PT/INR elevation indicates impaired hepatic synthetic function.
Elevated serum alkaline phosphatase (ALP) with normal transaminases is MOST consistent with which condition?
Answer: Obstructive jaundice or bone disease
An isolated ALP elevation suggests cholestasis or bone disease; GGT elevation alongside confirms hepatic origin.
In a blood gas analysis, a pH of 7.28 with elevated pCO2 and normal HCO3 indicates which acid-base disorder?
Answer: Respiratory acidosis
Low pH with elevated pCO2 (retained CO2) and normal bicarbonate indicates respiratory acidosis from hypoventilation.
Which reference method is the gold standard for glucose measurement in clinical chemistry?
Answer: Hexokinase method
The hexokinase method is considered the reference method for serum glucose due to its high specificity and accuracy.