Vitamin E, Serum (Referred Out) - Saskatoon

Discipline

Biochemistry

Overview

Description

Ordering Recommendations

Fasting specimen preferred; collect after a 12 hour fast
Patient should be without vitamin supplements for 24 hours prior to testing

Specimen Information

Specimen types accepted

Serum

Specimen collection container

Preferred collection container: Gold (gel) 5 mL
Alternative collection container: Red (no additive) 5 mL

Collection procedure

Specimen must be centrifuged, aliquotted into amber tube (light sensitive) and frozen within 60 minutes of collection.

Required volume

Optimal Volume: 5 mL full collection tube
Minimum Volume: 1 mL

(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection)

Transport and stability

Specimen must be centrifuged, aliquotted into amber tube (light sensitive) and frozen within 60 minutes of collection.

Rejection criteria

Receipt of specimen not protected from light
Specimens received where the collection protocols were not followed
Pathology and Laboratory Medicine Acceptance and Rejection Criteria

Testing Information

Clinical interpretation

Evaluate vitamin E deficiency in patients with motor and sensory neuropathies, and individuals with intestinal malabsorption of lipids

Performance

Days/times performed

Availability

Shipped Mondays and Wednesdays

Testing Site

Referred out by St. Paul's Hospital Laboratory to Dynacare (London, ON)

Maximum laboratory time

7 day turnaround time by testing laboratory

Last Updated: October 24, 2024