Vitamin B1 (Thiamine), Plasma : ARUP Lab Tests

Home | Contact | Careers | ARUP Connect™ Login | ARUP Events

Laboratory Test Directory

Test Directory | Entire Site

Search Tips

Wildcards Symbol (*)

The wildcard symbol (*) can be used in place of letters or characters in query words to search for different permutations of a word.

*	Can be in any position in the term and matches any number of characters.
Examples:	hemo*	matches hemolytic, hemophilia and hemophilia
	*NA	matches DNA and RNA
	*tet**	matches text and test
	BCL*	matches bcl-1/JH and bcl-2/JH
	virus*	matches virus or viruses
	*glucan*	matches beta-1,3-d-Glucan

Boolean Parameters

Search terms can be a single word or several words. The search engine automatically inserts and between words if nothing else is specified, so the Boolean term and can be omitted in search terms. For example, searching for tissue assay is the same as searching for tissue AND assay.

Quotes can be used to search for phrases. For example:

"tissue assay "

Words must be present in the specified order with no intervening words

The following boolean connectors can be used: AND, OR, NOT Examples:

tissue AND assay	Both words must be present
tissue OR assay	Either word can be present
assay NOT tissue	Only assay can be present, tissue cannot appear on the page

Testing Information

Testing Specialties

Specimen Handling

Client Services

Lab Expertise

Utilization Management

Research & Development

Education

About ARUP

ARUP's Laboratory Test Directory

Vitamin B₁ (Thiamine), Plasma : 0080389

Mnemonic: VIT B1 P

Methodology:	Quantitative High Performance Liquid Chromatography
Performed:	Sun-Sat
Reported:	2-5 days
Specimen Required:	Collect: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2 EDTA). Specimen Preparation: Separate plasma from cells within one hour of collection. Protect from light within one hour of collection, and during storage and transport. Transfer 3 mL plasma to an ARUP Amber Transport Tube. (Min: 0.2 mL) Storage/Transport Temperature: Frozen. Separate specimens must be submitted when multiple tests are ordered. Unacceptable Conditions: Hemolyzed specimens or specimens other than heparin or EDTA plasma. Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen at -20°C: 6 months

Reference Interval: 8-30 nmol/L
Interpretive Data:	Total thiamine, measured as thiamine (vitamin B₁) and thiamine monophosphate, is reported. However, the biologically active form of the vitamin, thiamine diphosphate (TDP), is best measured in whole blood, and is not found in measurable concentration in plasma. Plasma thiamine concentration reflects recent intake rather than body stores.
Note:	Whole blood is the preferred specimen for thiamine assessment. Approximately 80% of thiamine present in whole blood is found in red blood cells. Refer to Vitamin B₁ (Thiamine), Whole Blood (0080388).
CPT Code(s):	84425
Cross References:	B₁ Vitamin (Vitamin B₁ (Thiamine), Plasma) , Thiamine (Vitamin B₁ (Thiamine), Plasma) , Vitamin B1 (Thiamine), LC/MS/MS (Vitamin B1 (Thiamine), Plasma)

All ARUP Sites: www.aruplab.com · www.arupconsult.com · www.arup.utah.edu · www.childx.org · www.utahblood.org