abcdefghijklmn
opqrstuvwxyz
Test Menu
Test Change Details
Allergy & Immunology
Cardiology & Coagulation
Dermatopathology
Endocrinology
Gastroenterology
Genetics
Hepatology
Infectious Disease
Microbiology
Nephrology
Neurology
Oncology
Pathology
Pediatrics
Rheumatology
Toxicology
Urology
Women's Health
90353: Vitamin B1 (Thiamine), Plasma/Serum, LC/MS/MS Print View
Vitamin B1, S/P LC/MS/MS  < 18 years: Call Client Services
>= 18 years: 8 - 30 
nmol/L 

PRIMARY
1 Plasma EDTA prot frm lght 2 (1) mL   Room Temperature - 8 Hour(s)/Refrigerated - 48 Hour(s)/Frozen - 30 Day(s)  
ALTERNATE
  Serum Foil Wrapped 2 (1) mL   Frozen - 30 Day(s)/Refrigerated - 48 Hour(s)/Room Temperature - 8 Hour(s)  
  Plasma EDTA Foil Wrapped 2 (1) mL   Room Temperature - 8 Hour(s)/Refrigerated - 48 Hour(s)/Frozen - 30 Day(s)  
  Serum protected frm light 2 (1) mL   Refrigerated - 48 Hour(s)/Frozen - 30 Day(s)/Room Temperature - 8 Hour(s)  

Vitamin B1 deficiency is most often associated with alcoholism, chronic illness and following gastric by-pass surgery. Prolonged deficiency causes beriberi. Plasma vitamin B1 is useful in evaluating nutritional assessment and compliance, while whole blood vitamin B1 is useful in evaluating body stores.

Overnight fasting is required.

Plasma: Collect blood in a Lavender top tube. Remove plasma
within 4 hours of collection and transfer to a light protected
pour off tube. If seperation of cells can't be performed
immediately after collection, keep the whole blood refrigerated
and protected from light. The separation of cells must be
completed within 4 hours of collection. Separate cells by
centrifugation at 2-8 degrees C for 8-10 minutes. Transfer
plasma to an amber tube to protect from light and freeze tube
immediately. Alternately, neutral colored tubes can be used if
wrapped in aluminum foil. Ship frozen tubes at -10 degrees to
-30 degrees C.

Serum:
Collect blood in plain red top evacuated tube.
Allow to clot at 20-25 degrees C for 20-30 minutes.
Centrifuge at 2-8 degrees C for 8-10 minutes. Transfer
serum to amber polypropylene or polyethylene transport tube
to protect from light and freeze tube immediately. Alternately,
neutral colored polypropylene or polyethylene tubes can be used
if wrapped in aluminum foil.
Setup Schedule
Tuesday-Saturday

Reported (Analytical Time)
Next day

CPT Code
84425

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport Container: amber transport tube Transport Temperature: Frozen Reject Criteria: Received room temperature; received refrigerated; hemolysis; lipemia Methodology: Liquid Chromatography/Tandem Mass Spectrometry






1996 - 2017 Quest Diagnostics Nichols Institute of Valencia
For test information, please call Client Services at 800-421-4449.

San Francisco Web Design & Database