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Item Value
Approval req'd? No
Available Stat? No
Test code PRTL
Performed by Quest
Sendout? Yes
Method GCMS
Collection Instructions Refrigerate collection container during collection.
Container type 24 hour urine collection container

Click here for Urine Preservative Requirements
Amount to Collect Entire 24 hour urine output
Sample type 24 hour urine collection
Preferred volume 5 mL urine
Min. Volume 3 ml urine
UCSF Rejection Criteria Container not refrigerated during collection.
Processing notes Freeze aliquot at -20C and transport frozen. Order Quest #7625N
Units µg/24 hours (mcg/24 hours)
Normal range
Males 71-1000 µg/24 hours
Females 47-790 µg/24 hours

Stability Room temperature 8 hours, refrigerated 48 hours, frozen at -20C 1 month.
Turn around times Test run Tuesday. Turnaround time: 4-9 days
Additional information Pregnanetriol concentrations are elevated in 21-hydroxylase deficiency, the most common cause of congenital adrenal hyperplasia (CAH). Pregnanetriol concentrations may be useful in monitoring treatment of patients with 21-hydroxylase deficiency.
CPT coding 84138-90
LOINC code 2836-5
Last Updated 3/24/2013 7:52:25 PM
Entry Number 778
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