TMAO (Trimethylamine N-Oxide)

Specimen Required
Draw blood in red-top tube. Gently invert tube 5 times. DO NOT SHAKE. Allow specimen to clot completely (about 30 minutes). Centrifuge for 10 minutes. Separate serum from cells and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Rejection Criteria
Hemolysis

Methodology
Liquid Chromatography - Tandem Mass Spectrometry (LC/MS/MS)

Stability
Room temperature: 24 hours; Refrigerated: 7 days; Frozen: 3 months

Reference Range
< 6.2 uM

Performed
Monday - Saturday

Turnaround Time6 - 8 days
Test CodeTMAO
CPT-4 Code (s)
82542
LOINC Codes
TMAO (Trimethylamine N-Oxide)     
90360-9

Warde
Medical
Laboratory