Cortisol, 4 PM

Last Modified: 2/20/2019 3:35:52 PM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:

Patient should discontinue taking Biotin, Vitamin B7, or Vitamin H 48 hours before getting blood drawn.

Specimen Requirements:

1.0 mL Serum in a SST Gold Top Tube

Collection Instructions:

Avoid Thaw/Freeze Cycles

Cortiosl, 4PM reference ranges are applicable to specimens collected between 3 and 5 pm.  For specimens collected outside this time period, please order a Cortisol, Random (CORT)
Minimum Volume: 0.25 mL
Transport & Storage: Temperature/Stability:

5 days Refrigerated
3 months Frozen

24 hours unspun

Reference Range:

2.4 - 12.8 ug/dl

Critical Ranges:  
Test Comments: Patients taking vitamin supplements containing high doses of biotin (>5 mg/day) may have falsely increased test results generated.
Methodology: Chemiluminescence
Clinical Significance:  
Custom Panel: No


Stat Eligible: Yes
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: CORTP
EPIC Test Code: LAB2290
Alternate Test Names: 4 PM Cortisol
Included Tests:  
CPT Coding: 82533

Go back to the top of the page.