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17 Ketosteroids, Urine

Urine 17 Ketosteriods, 17-Ketosteroids, 17-KS, 17 KS

Test Codes

EPIC: LAB6080, Beaker: X17KS, ARUP: 80650

Department

Send Outs

Instructions

• A Urine Creatinine test is performed on each sample.
• Please refer to the Specimen Collection Manual for instructions on 24 Hour Urine Collection:
  • Urine 24-Hour Collection - Inpatient
  • Urine 24-Hour Collection - Outpatient
  • Urine 24-Hour Collection - Outreach

Specimen Collection Criteria

Collect: 24-hour urine sample with no preservative.

• Keep 24-hour urine specimen iced or refrigerated during collection.
• Include start and end dates and times for the collection period on the specimen container.

Urine Preservative Options
No Preservative	6N Hydrochloric Acid	Boric Acid (10g)	Sodium Carbonate	50% Acetic Acid
Preferred	Acceptable	Unacceptable	Unacceptable	Unacceptable

Physician Office/Draw Specimen Preparation

Maintain specimens refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: Entire 24-hour urine collection, refrigerated (2-8°C or 36-46°F).

Rejection Criteria

Specimens not collected and processed as indicated. 

In-Lab Processing

Measure total volume of 24-hour urine specimen. Record total volume and collection start and end dates and times in the LIS system. Preservation can be enhanced by adjusting the pH to 2-4 using 6M HCl. Aliquot 4.0 mL from the well-mixed 24-hour urine collection. (Minimum: 3.0 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 4 hours
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 1 month

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Monday, Wednesday, Friday.
Results available in 2-6 days.

Reference Range

By report.

Test Methodology

Quantitative Spectrophotometry.

Clinical Utility

This assay aids in the diagnosis of patients with suspected Cushing's disease, adrenogenital syndrome, and other disorders with steroid biosynthetic defects.

CPT Codes

83586
LOINC:  21038-5, 6766-0

Contacts

Last Updated

10/3/2023