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Test Code CORTICOSTE Corticosterone

Clinical System Name

Corticosterone

Synonyms

None specified

Sample Requirements

Specimen: Whole Blood

Container(s): Red or Lavender/EDTA or Dark Green/Sodium Heparin or Dark Blue/EDTA Trace Element Tube

Preferred Vol: 2.0 mL

Minimum Vol: 0.5 mL

 

Note: Do not collect into SST tube. Early morning specimens are preferred.

Processing Instructions

Reject due to: Gel separator.

Spin: Y

Aliquot: Y

Temp: 2 - 4 C

Storage location: Spin sample and aliquot serum/plasma in plastic aliquot tube. Store in CPA refrigerator send-outs rack.

 

Off-site collection:  Spin and aliquot serum/plasma in plastic aliquot container. Transport at room temperature.

Stability

Specimen Type Temperature Time
Serum or plasma Room temp

28 d

  Refrigerated 28 d
  Frozen 28 d

 

Availability

STAT Performed TAT
N

Drawn daily; set up T at Quest

2 - 10 d

 

Performing Laboratory

Quest Diagnostics - Nichols Institute

33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

 

Phone Number: (800) 553-5445

Department

Department:  Send Outs
 

Phone Number: (206) 987-2563

 

 

Reference Range

 

 

Age ng/dL
Premature infants (31 - 35 weeks) 235 or less
Term infants 170 or less
< 1 year Female 89 - 1200
< 1 year Male 78 - 1750
1 - 4 years Female 160 - 2040
1 - 4 years Male 120 - 1290
5 - 9 years 677 or less
10 - 13 1420 or less
14 - 17 1238 or less
Tanner Stage II - III Male 115 - 1220
Tanner Stage II - III Female 110 - 600
Tanner Stage IV - V Male 165 - 840
Tanner Stage IV - V Female 160 - 390
Adults (AM) 59 - 1293
Adults (PM) 386 or less

 

Methodology

Method: LC/MS/MS

Analytical Volume: 0.25 mL serum or plasma

Limitations:

CPT Codes

82528

 

Send Out Instructions

 

Reference Test Name:

Corticosterone, LC/MS/MS

Reference Test Number:

6547X

Instructions: Send out M - F with the Quest courier.