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Back to Test Catalogue
Test ID: 21OHP

21-Hydroxyprogesterone, Serum

Test Overview

Method

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Result Included

21-Hydroxyprogesterone

Aliases/Synonyms

21-Hydroxy Progesterone; 11-Deoxycorticosterone; Deoxycorticosterone

Specimen

Specimen Type

Serum

Volume

Sample Volume

1 mL

Specimen Comment

Gel-separator tubes are acceptable if separated into plastic transfer vial within 2 hr.

Collection & Handling

Handling Information

Store and send frozen.

Stability

Refrigerated Frozen
1 Day >1 day

Performance & Interpretation

Turnaround Time

5 days

Results

Name
Units
Reference Range
Conversion
  1. 21-Hydroxyprogesterone
    nmol/L
    0 - <1 y: 0.07-0.76

    1 - <2 y: 0.03-0.25

    2 - <12 y: 0.00-0.15

    12 - <19 y: 0.00-0.24

    Adult M, 19 - 89 y: 0.11 - 0.35

    Adult F, Follicular: 0.05 - 0.26

    Adult F, Luteal: 0.11 - 0.39

Referral Location

Canada

Test Version

Last Updated

2019-09-30