Specimen:

Serum

Collection Medium:

Alternate
Collection Media:

Lavender top tube (EDTA)

Minimum:

Adult minimum: 3 mL serum
Pediatric minimum: 1.0 mL serum (no repeat analysis with this volume)

Delivery Instructions:

Deliver to laboratory immediately after collection.

Analytic Time:

within 10 days

Reference Range:

18-HYDROXYCORTICOSTERONE
Samples were collected without regard to posture from subject on ad lib 
sodium intake.  For additional information on the effects of posture 
and sodium intake, contact the Endocrine Sciences Laboratory 
800-444-9111.

Premature Infants:
  26-28 Weeks, Day 4:  10-670
  31-35 Weeks, Day 4:  57-410
Full-term Infants:
  Day 3:               31-546
  31 Days-11 Months:    5-220
  12-23 Months:        18-155
  24 Months-9 Years:    6-85
  10-14 Years:         10-72
Adults:                 9-58
8:00am Supine:          4-21
8:00am Upright:         5-46

Methodology:

High pressure Liquid Chromatography - Tandem Mass Spectrometry

CPT Code:

82542

See also:
Mineralcorticoid Profile, Serum

See Additional Information:
Specimens Requiring Immediate Delivery