Cortisol Free, Random Urine CORTRU

Synonyms

Allscripts (AEHR) Order Name

Cortisol Free, Random Urine

Sunrise Clinical Manager (SCM) Order Name

Cortisol Free, Random Urine

EPIC Order Name

Random Urine, Cortisol Free

Clinical Info

Investigating suspected Cushing syndrome (hypercortisolism), when a 24-hour collection is prohibitive (ie, pediatric patients).
Assisting in diagnosing acquired or inherited abnormalities of 11-beta-hydroxy steroid dehydrogenase (cortisol to cortisone ratio)
Diagnosis of pseudohyperaldosteronism due to excessive licorice consumption
This test has limited usefulness in the evaluation of adrenal insufficiency.
This test is not useful for evaluation of hypocorticalism.

Specimen Type

Urine

Container

Urine-Yellow Top

Collection Instructions

Container/Tube: Plastic, 10-mL urine tube
Specimen : 5 mL Random Urine ( 3 mL min)
Transport Temperature: Refrigerated
Stability: 7 Days Room Temperature
14 Days Refrigerated
28 Days Frozen
Frozen (preferred)
28 days

Refrigerated
14 days

Ambient
7 days

Transport Instructions

Refrigerated

Specimen Stability

7 Days Room Temperature
14 Days Refrigerated
28 Days Frozen
Frozen (preferred)
28 days

Refrigerated
14 days

Ambient
7 days

Methodology

RCTU: Enzymatic Colorimetric Assay

CRAN: Liquid Chromatography-Tandem Mass Spectrometry
(LC-MS/MS)

Days Performed

Monday through Friday; 4 p.m.

Performing Laboratory

Mayo Medical Laboratories

CPT

82530
LOINC Code 44309-3

PDM

5589039

Result Interpretation

Males

0-2 years: 3.0-120 mcg/g creatinine

3-8 years: 2.2-89 mcg/g creatinine

9-12 years: 1.4-56 mcg/g creatinine

13-17 years: 1.0-42 mcg/g creatinine

≥18 years: 1.0-119 mcg/g creatinine

 

Females

0-2

Forms


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