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HelpTest Code LAB969 Corticosterone Level
Additional Codes
CORTICOSTE
Clinical System Name
Corticosterone Level
Sample Requirements
Specimen: Whole Blood
Container(s): Red, Lavender/EDTA, Dark Green/Sodium Heparin, or Dark Blue/EDTA Trace Element Tube
Preferred Vol: 2.0 mL
Minimum Vol: 1.0 mL
Note: Do not collect into SST tube. Early morning specimens are preferred.
Processing Instructions
Reject due to: Gold SST
Spin: Y
Aliquot: Y
Temp: 2 - 8 C
Storage Location: Separate from cells within two hours of collection. Transfer 1.0 mL serum (Min: 0.5 mL) to a plastic aliquot tube affixed with large Epic label. Deliver specimen to the CPA refrigerator, Send Outs rack.
Off-site Collection: Separate from cells within two hours of collection. Transfer 1.0 mL serum (Min: 0.5 mL) to a plastic aliquot tube affixed with large Epic label. Transport refrigerated.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum or Plasma | Room Temp |
28 d |
| Refrigerated | 28 d | |
| Frozen | 28 d |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N |
T |
4 - 12 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
CPT Codes
82528
Methodology
Method: Chromatography/Mass Spectrometry
Analytical Volume: 0.5 mL Serum or Plasma
Limitations:
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 |
Send Out Instructions
| Reference Test Name: |
Corticosterone, LC/MS/MS |
| Reference Lab Test Code: | |
| Instructions: | Send out Monday through Friday with the Quest courier. |