Ordering Recommendation

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

A morning specimen is preferred.


Serum separator tube. Also acceptable: Plain red, pink (K2EDTA), plasma separator tube, green (sodium heparin), or green (lithium heparin).

Specimen Preparation

Transfer 1 mL serum or plasma to an ARUP standard transport tube. (Min: 0.3 mL)

Storage/Transport Temperature

Refrigerated. Also acceptable: Frozen.

Unacceptable Conditions

Grossly hemolyzed specimens.


After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 6 months.


Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry


Mon, Wed, Fri


1-8 days

Reference Interval

Gestation Time, Age Reference Interval
Premature (26-28 weeks) 235 - 1108 ng/dL
Premature (29-30 weeks) Not Established
Premature (31-35 weeks) 150 - 1700 ng/dL
Full Term Newborn, 1-7 days 70 - 850 ng/dL
8-29 days Not Established
30 days-11 months 80 - 1500 ng/dL

Age, Draw Time Reference Interval
1-16 years, morning 135 - 1860 ng/dL
1-16 years, evening 70 - 620 ng/dL
17 years and older, morning 130 - 820 ng/dL
17 years and older, evening 60 - 220 ng/dL

Interpretive Data

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
2008457 Corticosterone, HPLC-MS/MS 2139-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


Corticosterone Quantitative by HPLC-MS/MS, Serum or Plasma