Corticosterone, Pediatric

Abbrev Code:COSTNP   
Order Code:LAB6875Order Name:Corticosterone, Pediatric
Methodology:Liquid chromatography/Tandem mass spectrometry
CPT Codes: 82528 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 2-10 days.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.7 mL
Container:Red (no gel)
Alternate Containers: Green (sodium heparin, no gel), Purple (EDTA)
Patient Preparation:An early morning specimen is preferred.
Causes for Rejection:Gel tubes.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.25 mL minimum. Store at room temperature.
Shipping Instructions:Ship at room temperature.
Stability:Stability: 28 days at room temperature, refrigerated or frozen.
Test Performed at or Referral Lab Lab Sendouts  (Quest Diagnostics)
Referral Lab number:6547X


Reference Range:

By report.


Use:Measurement of corticosterone may help confirm the diagnosis of the very rare aldosterone deficiency disorder, corticosterone methyl oxidase (18-hydroxylase) enzyme deficiency where the ratio of corticosterone to 18-hydroxycorticosterone may be increased.

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