Test ID: ZH363
CPT code: 84446
LOINC:
Specimen Type: Serum
Frequency: 3 – 6 days
Instructions: 0.8 mL Serum from Red or SST, Ambient. Min 0.4 mL.
Text: Evaluate vitamin E deficiency in hemolytic disease in premature infants, and neuromuscular disease in infants (and adults) with chronic cholestasis; evaluate patients on long-term parenteral nutrition; patients with malignancy or malabsorption (eg, patients with cystic fibrosis, cases of intestinal bypass surgery); investigate brown-bowel syndrome.
Methodology: Liquid chromatography/tandem mass spectrometry (LC/MS-MS)