Name: Vitamin A
Test Name: Vitamin A
Health Link Test Code: HCVITA
LIS Test Code: VITA
CPT Code(s): 84590
Methodology: Liquid Chromatography
Days Performed: Mon-Fri, dayshift, as workload dictates.
In-Lab Turnaround Time: 2 - 7 days.
Stat In-Lab Turnaround Time: Not available stat.
Patient should fast overnight for 12 hours, avoid alcohol for 12 hours, and refrain from taking daily vitamins that may contain Vitamin A prior to blood draw.
Collection Container: Red top
Also Acceptable: Green cap with yellow ring (PST), Lavender top, Red cap with yellow ring (SST)
Collection Volume: 2 mL
Pediatric Collection Volume: 1 mL
Sample Analyzed: Serum or plasma
Testing Volume: 1 mL
Pediatric Testing Volume: 0.3 mL
Centrifuge. Transfer cell-free serum to plastic vial. Refrigerate.
Transport specimen to laboratory. Transport with coolant if coming from clinic location. Specimen is stable in ambient light but exposure to direct sunlight should be avoided.
|0-1 month||0.18-0.50 mg/L|
|2 months-12 years||0.20-0.50 mg/L|
|13-17 years||0.26-0.70 mg/L|
|18 years and up||0.30-1.20 mg/L|
|Severe Deficiency: < 0.10 mg/L|
|Toxicity concerns: > 1.20 mg/L|
Interpretation Type: Reference Interval
This test was developed and its performance characteristics determined by the UWHC Clinical Laboratories. This test meets the standards for clinical testing. This test should not be regarded as investigational or for research use. The US Food and Drug Administration (FDA) has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.