Question

The test to check whether a normal amount of protein is available or not for physiological functioning is:

• A. Prothrombin time test
• B. Bile acid breath test
• C. Hydrogen breath test
• D. D - Xylose tolerance test

Hint:

Prothrombin time (PT) reflects liver function and adequacy of protein-dependent clotting factors.

Answer 1

The Correct Option is A

Step 1: Recall importance of proteins in physiology.
Proteins are essential for multiple functions including coagulation, immunity, transport, and enzymatic activity.
The liver synthesizes clotting factors (proteins). Their deficiency can be assessed by coagulation tests.
Step 2: Analyze each test.
- (A) Prothrombin time test: Measures clotting ability, dependent on adequate protein (clotting factor) synthesis in liver. It reflects availability of proteins for physiological functioning.
- (B) Bile acid breath test: Evaluates bile acid malabsorption, not protein status.
- (C) Hydrogen breath test: Used to diagnose lactose intolerance, not protein status.
- (D) D-Xylose tolerance test: Measures carbohydrate absorption, not protein.
Step 3: Conclusion.
The correct test to evaluate protein availability for physiological functions is Prothrombin time test.