Test Code CORTA Cortisol, Plasma or Serum (A.M.)
Additional Codes
Ordering Mnemonic |
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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