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Retinyl Palmitate and Vitamin A

Important Note

This test is orderable by Seattle Children's providers to assess vitamin A toxicity. 

Clinical System Name

Miscellaneous Test

Synonyms

Retinol

Retinyl palmitate

 

Sample Requirements

Specimen: Whole blood

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

Preferred Vol: 2.0 mL

Minimum Vol:  0.4 mL

 

Note:

Processing Instructions

Reject due to: Room temperature specimens greater than 4 hours old.

Spin: Y

Aliquot: Y

Temp:-20 C

Storage location: Separate serum/plasma from cells within 2 hours of collection. Deliver specimen to the CPA freezer send-outs rack.

 

 Off-site collection: Separate serum/plasma from cells within 2 hours of collection. Freeze serum/plasma.

Stability

Specimen Type Temperature Time
Serum/plasma Room temp

4 h

  Refrigerated 1 m
  Frozen

1 y

 

Availability

STAT Performed TAT
N Drawn daily, performed daily 2- 5 d

 

Performing Laboratory

ARUP Laboratories

500 Chipeta Way
Salt Lake City, UT 84108-1221
 

Phone Number: (800) 522-2787

Department

Department:  Send Outs

 

Phone Number: (206) 987-2563

 

 

 

Reference Range

 

Vitamin A (Retinol)
Age Reference Interval
0-1 month
2 months-12 years
13-17 years
18 years and older
0.18-0.50 mg/L
0.20-0.50 mg/L
0.26-0.70 mg/L
0.30-1.20 mg/L
Vitamin A (Retinyl Palmitate)  0-0.10 mg/L  

 

Methodology

Method: Quantitative High Performance Liquid Chromatography

Analytical Volume: None specified

Limitations:

CPT Codes

84590

 

 

 

 

 

 

 

 

 

 

 

Send Out Instructions

 

Reference Test Name: Vit A
Reference Test Number:

0080525

Instructions:

Send out M - F with ARUP courier.