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

Additional Codes

Ordering Mnemonic
CORTA

 

Methodology

Chemiluminescence

Useful for patients who are not, or are not suspected to be, taking exogenous glucocorticoids. This is the recommended routine procedure.

Note:  This test will be run if high-performance liquid chromatography (HPLC) is not specified.

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Container/Tube: Mint-top (lithium heparin) tube(s)

Specimen Volume: 1 mL of plasma

Collection Instructions: Draw specimen between 6 and 8 a.m.

Note: 1. If multiple specimens are drawn, send separate order for each specimen.

2. Indicate plasma and time of draw.

3. Label specimen appropriately (plasma).

 

Serum

Container/Tube: Serum gel tube(s)

Specimen Volume: 1 mL of serum

Collection Instructions: Draw specimen between 6 and 8 a.m.

Note: 1. If multiple specimens are drawn, send separate order for each specimen.

2. Indicate serum and time of draw.

3. Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82533 (HH Bill Code 0205120)

Reference Values

8.7-22.4 µg/dL