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Test Code LAB000 18-Hydroxycorticosterone, Serum

Important Note

Mayo Test Code: FHC18


Specimen Required


Preferred: Red top

Acceptable: SST

Submission Container/Tube: Plastic vial

Specimen Volume: 3 mL

Collection Instructions:

1. Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable.

2. Serum must be separated from cells within 45 minutes of venipuncture. Centrifuge and send 3 mL of serum frozen in a plastic vial.


Reporting Name

18-Hydroxycorticosterone, S

Specimen Type

Serum

Specimen Minimum Volume

1 mL (NOTE: Minimum volume does not allow for repeat analysis.)

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 90 days
  Ambient  24 hours
  Refrigerated  24 hours

Reject Due To

Thawing** Warm OK <1 day; Cold OK <1 day
Other/Tissue/Swab Specimens other than serum or plasma EDTA or green-top heparin

Reference Values

Age

Range (ng/dL)

Premature (26 - 28 weeks) Day 4

10 - 670

Premature (31 - 35 weeks) Day 4

57 - 410

Full-term Day 3

31 - 546

31 days to 11 months

5 - 220

12 - 23 months

18 - 155

24 months to 9 years

6 - 85

10 - 14 years

10 - 72

Adults

9 - 58

Adults 8:00 AM Supine

4 - 21

Adults 8:00 AM Upright

5 - 46

Performing Laboratory

Esoterix Endocrinology

Test Classification

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

CPT Code Information

82542

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FHC18 18-Hydroxycorticosterone, S 1674-1

 

Result ID Test Result Name Result LOINC Value
FHC18 18-Hydroxycorticosterone, S 1674-1

Method Name

Mass Spectrometry

Day(s) Performed

Monday

Report Available

7 to 16 days