Specimen:

Plasma

Collection Medium:

Alternate
Collection Media:

Lavender top tube (EDTA), Light Green top tube (Lithium Heparin), Red 
top tube

Minimum:

Adult Minimum: 1.0 mL plasma
Absolute Pediatric Minimum: 0.3 mL plasma

Analytic Time:

4 working days

Reference Range:

Deficiency:  Less than 20 ng/mL
Insufficiency:  20-29 ng/mL
Optimum Level:  30-80 ng/mL
Possible Toxicity:  Greater than 80 ng/mL

Interpretive Data:

This assay accurately quantifies the sum of vitamin D3, 25-Hydroxy and 
vitamin D2, 25-Hydroxy.  Optimum 25-hydroxy vitamin D concentration is 
35 ng/mL or higher.

Methodology:

Chemiluminescent Immunoassay

Instructions:

Contact University of Iowa Diagnostic Laboratories 
1-866-844-2522 (toll free) 
319-384-7213 (Fax)

CPT Code:

82306