Test Details
Use
Work-up for abdominal pain, epigastric tenderness, nausea, and vomiting. Such findings characterize acute pancreatitis as well as acute surgical emergencies such as gastrointestinal perforation (eg, peptic ulcer with perforation) or bowel infarct. Amylase is used in the differential
Test Details
Synonyms
A, Vitamin
Retinol, Serum
Use
Differential diagnosis of hypervitaminosis A. A combination of a low serum carotene level and a low vitamin A suggests inadequate vitamin A nutrition.
Test Details
Synonyms
Biotin
Use
Measurement of vitamin B7 level
Additional Information
Biotin is a colorless, water-soluble B-complex vitamin that is also referred to as vitamin B7.1-3 Biotin functions as a cofactor for five mammalian enzymes that catalyze specific carboxylation reactions