Skip Ribbon Commands
Skip to main content
Sign In
Navigate Up

25218 Thiamine (Vitamin B1), Whole Blood

Thiamine (Vitamin B1), Whole Blood
Test Code: TOTHIA
Synonyms/Keywords
​Thiamin, Vitamin B1, Thiamine
Specimen Requirements
Fasting​ Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Yes​ Whole blood​ ​Lavender top tube (LTT) ​ ​1 mL ​0.5 mL ​
Collection Processing Instructions

​Protect from light.

Patient should be fasting for at least 9 hours.

Specimen Stability Information
Specimen Type Temperature Time​
​Whole Blood ​ ​Frozen (preferred) 2 Months​
​Refrigerate 1 Week​
Rejection Criteria
Samples not drawn in the required lavender top tube anticoagulant.
Specimens stored at room temperature > 2 hours.
Performing Laboratory Information
Performing LocationDay(s) Test PerformedAnalytical TimeMethodology/Instrumentation
​Marshfield

​1 day/week: Thursdays
(results on Friday)

2-3 days​
Ultra High Pressure Liquid Chromatography​
Samples must be in performing department by 8am on day of testing for results the same day.​ ​ ​ ​​ ​ ​ ​
Test Information
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.​
Reference Range Information
Performing Location Reference Range
​Marshfield
100-205 nmol/L​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​84425 ​ ​ ​ ​
Classification
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.
​
Synonyms/Keywords
​Thiamin, Vitamin B1, Thiamine
Ordering Applications
Ordering Application Description
​Centricity ​LAB Thiamine (Vitamin B1), Total in WB
​Cerner ​Thiamine (Vit B1), Whole Blood
​​COM ​Thiamine (Vit B1), Whole Blood
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting​ Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Yes​ Whole blood​ ​Lavender top tube (LTT) ​ ​1 mL ​0.5 mL ​
Collection Processing

​Protect from light.

Patient should be fasting for at least 9 hours.

Specimen Stability Information
Specimen Type Temperature Time​
​Whole Blood ​ ​Frozen (preferred) 2 Months​
​Refrigerate 1 Week​
Rejection Criteria
Samples not drawn in the required lavender top tube anticoagulant.
Specimens stored at room temperature > 2 hours.
Reference Range Information
Performing Location Reference Range
​Marshfield
100-205 nmol/L​
For more information visit:
Performing Laboratory Information
Performing LocationDay(s) Test PerformedAnalytical TimeMethodology/Instrumentation
​Marshfield

​1 day/week: Thursdays
(results on Friday)

2-3 days​
Ultra High Pressure Liquid Chromatography​
Samples must be in performing department by 8am on day of testing for results the same day.​ ​ ​ ​​ ​ ​ ​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​84425 ​ ​ ​ ​
Classification
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.
​
For most current information refer to the Marshfield Laboratory online reference manual.