Test Overview
Test Methodology

HPLC-Tandem Mass Spectrometry

Reference Range *

Premature (26 - 28 Weeks) Day 4: 10 - 670 ng/dL; Premature (31 - 35 Weeks) Day 4: 57 - 410 ng/dL; Full Term Day 3: 31 - 546 ng/dL; 1 - 11 Months: 5 - 220 ng/dL; 1 year old: 18 - 155 ng/dL; 2 - 9 Years: 6 - 85 ng/dL; 10 - 14 Years: 10 - 72 ng/dL; Adults: 9 - 58 ng/dL; Adults 8:00 AM Supine: 4 - 21 ng/dL; Adults 8:00 AM Upright: 5 - 46 ng/dL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday
Analytic Time

3 - 14 days

Soft Order Code
FHC18
MiChart Code
18-Hydroxycorticosterone
Synonyms
  • Hydrocorticosterone, 18-
  • HYD18
  • 18-HYDROXYCORTICOSTERONE
Laboratory
Sendout
Reference Laboratory
Mayo HYD18 (80744) (Esoterix Endocrinology 500088)
Section
Special Testing
Test Updated
Update Type
Replacement Test
Specimen Requirements
Collection Instructions

Collect specimen in red top or SST tube. Centrifuge, aliquot serum into a plastic vial within 1 hour of collection and freeze.

Yellow Top Tube
Normal Volume
3 mL serum
Minimum Volume
1 mL serum
Additional Information

Test sent to Mayo Medical Laboratories; performed by Esoterix Endocrinology.

Billing
CPT Code
82542
Fee Code
20426
Resources