Question

Which one of the following is not a liver function test?

• A. Alanine Transaminase (ALT)
• B. Aspartate Transaminase (AST)
• C. Alkaline Phosphatase (ALP)
• D. Serum Creatinine

Hint:

Creatinine = Kidney. ALT/AST/ALP = Liver.

Answer 1

The Correct Option is D

Step 1: Concept
Liver function tests (LFTs) are groups of blood tests used to evaluate the health of the liver by measuring levels of proteins, liver enzymes, and bilirubin.

Step 2: Meaning
ALT, AST, and ALP are enzymes found in liver cells; their presence in the blood at high levels indicates liver damage.

Step 3: Analysis
Serum creatinine is a waste product of muscle breakdown that is specifically filtered by the kidneys. It is used as a marker for renal (kidney) function rather than liver function.

Step 4: Conclusion
Thus, Serum Creatinine is the only option that is not a liver function test.

Final Answer: (D)