|
|
General
|
| |
Clinical Use:
|
Vitamin E is found in vegetable oils, fresh leafy vegetables, egg yolk, legumes, peanuts and margarine.Vitamin E is absorbed in the presence of bile and from the small intestine. Vitamin E functions as an antioxidant preventing peroxidation of unsaturated lipids particularly in erythrocyte membranes. Vitamin E has preventive roles in retrolental fibroplasia, intraventricular haemorrhage, and mortality of small premature infants. Decreased serum levels of vitamin E have been reported in patients with grand mal seizures and in persons exposed to nonsymptomatic doses of organophosphates. Conditions resulting in fat malabsorption, such as cystic fibrosis, can lead to vitamin E deficiency. Excessive vitamin E leads to malabsorption of other fat soluable vitamins (particularly D and K). Symptoms of vitamin E deficiency (<9 umol/L) include: irritability, oedema, haemolytic anaemia. While in general relatively high doses of tocopherol are tolerated, overdose may lead to: malaise, intestinal distress, defective coagulation, ecchymoses. |
| |
Availability:
|
Samples are batched and tested once a week. |
| |
|
| |
Code:
|
VTE |
| |
Handling Instructions (to laboratory):
|
Send separated sample chilled (or frozen if delayed >48 hours) and protected from light. |
| |
Hyperlink:
|
|
| |
Reference Interval:
|
0-6y 9-40
7-12y 12-40
13-19y 13-40
>19y 18-46
|
Collection Requirements
|
| |
Container:
|
Serum Sep. Tube-SST (GOLD), |
| |
Sample Type:
|
See container |
| |
Minimum Collection Volume:
|
1.5mL |
| |
Collection Instructions:
|
Protect sample from light immediately following collection.
If sample will not reach laboratory within 48 hours of collection, it must be transported frozen. |
Processing Requirements
|
| |
Alternate Containers:
|
|
|
|
|
Serum, no gel (RED) |
|
|
|
Lithium Heparin-PST (GREEN) |
|
|
|
Lithium Heparin, No Gel (DKGNLITH) |
| |
Processing Instructions:
|
Centrifuge, separate and freeze sample.
Protect sample from light. |
| |
Minimum Assay Volume:
|
600uL |
| |
Stability:
|
48 hours chilled; 2 weeks frozen |
| |
Transport Instructions (to testing laboratory):
|
Send separated sample chilled (or frozen if delayed >48 hours) and protected from light. |
Testing Locations
|
| |
Performed at:
|
|
Section
|
Department
|
Site
|
Contact Phone
|
| Special Chemistry |
Biochemistry |
QEII Medical Centre |
6383 4114 |
|
Last Updated : 29-12-2022 11:07 |