VITAMIN B1 (THIAMINE), PLASMA

Mnemonic

VITB1P

Synonym

Thiamine

Guidelines

Whole blood is the preferred specimen for thiamine assessment. Approximately 80% of thiamine present in whole blood is found in red blood cells.

Collect

Plasma, one green (sodium or lithium heparin) or lavender (EDTA) top tube

Handling

Separate plasma from cells within one hour of collection.

Preferred Volume

3.0 mL

Minimum Volume

0.2 mL

Transport

Frozen

Rejection Criteria

Hemolyzed or specimens other than heparin or EDTA plasma.

Stability

AFTER SEPARATION FROM CELLS: Ambient: Unacceptable; Refrigerated: 1 week; Frozen at-20°C: 6 months

Note

Separate specimens must be submitted when multiple tests are ordered.

Performed

7 days/week

Reported

2-7 days

Method

Quantitative High Performance Liquid Chromatography

Referral Lab

ARUP (0080389)

Reference Values

Interpretation provided.

CPT Codes

84425

Last Updated: Thursday, January 5, 2017 03:42:32 AM