In evaluating hepatic status, which component is more likely to assess kidney function rather than liver function?

In evaluating hepatic status, which component is more likely to assess kidney function rather than liver function?

• A. BUN and Creatinine
• B. Cholestatic enzymes
• C. Hepatocellular leakage enzymes
• D. Total protein and albumin

Answer: (A)

BUN and creatinine are standard indicators of kidney function; urea nitrogen from protein metabolism is processed by the liver but cleared by the kidneys, and creatinine is a waste product filtered by the kidneys. When kidney function declines, both BUN and creatinine tend to rise, making them the most kidney-specific markers among the options. In contrast, cholestatic enzymes (like alkaline phosphatase and GGT) and hepatocellular leakage enzymes (like AST and ALT) are used to detect liver injury or bile duct problems, while total protein and albumin reflect the liver’s ability to synthesize proteins. So, BUN and creatinine best point to renal status rather than hepatic function.

BUN and creatinine are standard indicators of kidney function; urea nitrogen from protein metabolism is processed by the liver but cleared by the kidneys, and creatinine is a waste product filtered by the kidneys. When kidney function declines, both BUN and creatinine tend to rise, making them the most kidney-specific markers among the options. In contrast, cholestatic enzymes (like alkaline phosphatase and GGT) and hepatocellular leakage enzymes (like AST and ALT) are used to detect liver injury or bile duct problems, while total protein and albumin reflect the liver’s ability to synthesize proteins. So, BUN and creatinine best point to renal status rather than hepatic function.