Lab Values For Nurses Practice Test

Which laboratory value is reported in mg/dL units in the provided ranges?

Bilirubin ALT AST ALP

Correct Answer:

Bilirubin

Explanation:

The key idea is that lab values use different units depending on what’s being measured. Bilirubin is typically reported in mg/dL, while the liver enzymes ALT, AST, and ALP are usually reported in units per liter (U/L or IU/L). So the value shown in mg/dL would be bilirubin, not the enzymes. For context, total bilirubin normally ranges about 0.3–1.2 mg/dL (direct bilirubin 0–0.3 mg/dL), whereas ALT, AST, and ALP are commonly given in U/L with ranges that vary by lab.

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