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Test Code CORTAM Cortisol (A.M.), Serum or Plasma

Methodology

Enzyme Immunoassay (EIA)
Note:  A.M. Cortisol must be scheduled at 8 a.m., unless otherwise specified.

Specimen Requirements

Container/Tube:

Preferred: Lithium heparin (light green-top)

Acceptable: Serum Gel

 Draw blood from a fasting patient, spin down and send 1 mL (pediatric:  0.2 mL) of plasma or serum.

Notes:

1. Include time of draw on request form. 

2. If multiple specimens are drawn, send separate request form for each specimen.

Specimen Stability Information

 

Specimen Type

Temperature

Time

Plasma,lithium heparin / Serum

RT, spun

24 hrs
 

Refrigerated, spun

4 days

 

Reference Values

Collection Time Cortisol (ug/dL)
6:00 - 10:00 am 6.0-18.0
4:00 - 8:00 pm 3.0-11.0

 

Reject Due To

 

Hemolysis

Mild:

ok

Gross:

ok

Lipemia

Mild:

ok

Gross:

ok

Icterus

Mild:

ok

Gross:

ok

 

Day(s) Test Set Up

Monday through Sunday

CPT Coding

82533

Secondary ID

HHA1384

Performing Laboratory

Huntsville Hospital Laboratory

LOINC Coding

Test Name LOINC Code

Cortisol (A.M.), Serum or Plasma

9813-7