Test Details

Mnemonic

CORSE

Ordering Code

3400822

CPT-4 Code(s)

82542

Specimen Information

Patient Preparation

Overnight fasting is preferred.

Collect

Red top

Specimen Preparation

Collect and send 1.0 mL serum in a screw capped plastic vial. Specify time
of day specimen was collected.

Alternate Specimen

Plasma: Lavender EDTA

Minimum Volume

0.3 mL

Transport Temperature

Refrigerated

Rejection Criteria

Gross hemolysis; received at room temperature; Serum separator tube (SST)

Stability

Room temperature: 48 hours
Refrigerated: 21 days
Frozen: 1 year

Methodology

Chromatography/Mass Spectrometry
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Reference Range

Adult Males and Females
AM 1.2 - 3.5 mcg/dL
PM 0.6 - 2.8 mcg/dL

AM
Full Term Infants, birth** 2.6 - 15.6 mcg/dL
7 days** 0.3 - 4.5 mcg/dL
2 weeks - 3 months** 0.9 - 5.4 mcg/dL
4 - 11 months 0.5 - 4.1 mcg/dL
1 year 0.5 - 4.0 mcg/dL
2 - 3 years 0.5 - 3.9 mcg/dL
4 years 0.5 4.0 mcg/dL
5 years 0.5 - 4.1 mcg/dL
6 years 0.6 - 4.3 mcg/dL
7 years 0.7 - 4.5 mcg/dL
8 years 0.8 - 4.7 mcg/dL
9 years 0.9 - 4.9 mcg/dL
10 years 0.9 - 5.1 mcg/dL
11 - 12 years 1.0 - 5.2 mcg/dL
13 - 17 years 1.0 - 5.3 mcg/dL
Pediatric lower reference values are
reflective of both AM and early PM sampling
**Pediatric data from Sippel WG et al,
Pediat Res (1980) 14:39-46.
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Performing Laboratory

Quest SJC
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New York DOH Approval Status

No
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