Description
A retinol binding protein (RBP) blood test measures the amount of RBP in your blood. The test can help diagnose or monitor conditions that affect vitamin A transport, liver function, and the kidneys.
What the test can help diagnose or monitor
- Vitamin A status: RBP is a sensitive marker of undernutrition and hypovitaminosis A.
- Liver disease: RBP levels are strongly related to the severity of liver disease.
- Renal tubular injury or dysfunction: RBP levels can help assess renal tubular injury or dysfunction.
- Malnutrition: RBP levels can help indicate malnutrition.
- Diabetes: RBP levels are elevated in type 2 diabetes and gestational diabetes.
Fasting not required.
