Dexamethasone Suppression Test

Specimen Container

(gold)

Specimen Collection Type

Serum or Plasma

Minimum Volume To Collect (Ml)

1 mL

Pediatric Volume To Collect (Ml)

1 mL

Specimen Preparation

Separate ASAP

Stability

Ambient Stability: 8 hrs
Refrig Stability: 3 Days
Frozen Stability: 3 Months

Preferred Transportation Temperature

REFRIGERATED

Performed

Sun-Sat

Reported

Same day

Methodology

Chemiluminescent Microparticle Immunoassay (CMIA)

Lab Department

Core

Testing Location

IHC

Test OR Panel

Test

Misc Instructions

COLLECTION!
1 mg dexamethasone orally at 23:00 or 00:00
Cortisol drawn at 08:00 Separate from cells ASAP

Unit of Measurement

ng/dL

CPT Codes

80299

LOINC

14062-4 14062-4

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