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Test Code VIT A&E Vitamin A and E

Clinical System Name

Vitamin A & E Level

Synonyms

Retinol

Sample Requirements

Specimen: Whole blood

Container(s): Gold SST, Dark Green/Sodium Heparin, Lt. Green/Lithium Microtainer, Gold Microtainer

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL

 

Note: Protect sample from light by wrapping with paper towel and securing with one piece of tape. Avoid hemolysis.

 

Processing Instructions

Reject due to: Gross hemolysis

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Transfer 0.5 mL serum/plasma to amber plastic aliquot tube. Freeze in CPA freezer, Fz4 rack. 

 

Off-site collection: Protect sample from light by wrapping with foil. Avoid hemolysis. Spin blood, send serum/plasma frozen

Stability

Specimen Type Temperature Time
serum/plasma protected from UV light Room temp 3 d
  Refrigerated 7 d
  Frozen 1 m

 

Availability

STAT Performed TAT
N M, reported T up to 7 D

 

Performing Laboratory

Seattle Children's Laboratory    

 

Department

Department:  Chemistry

Location: Chem West

Phone Number: (206)987-2617

Reference Range

Vitamin A

Age mcg/L
<1 Year 150-300
1-6 Years 200-430
7-12 years 200-490
13-19 years 260-720
>19 Years 300-800

 

Vitamin E

5 - 18 mg/L

Methodology

Method: HPLC with UV detector

Analytical Volume: 0.25 mL

Limitations:

CPT Codes

CPT 84590 & 84446