Catecholamines, Plasma

Test Code: TD_4211

CPT Code(s): 82384

$45

Test Details

Alternative Name(s)

Catecholamines, plasma fractionated
Dopamine, plasma
Epinephrine, plasma
Norepinephrine, plasma

Test Includes

Catecholamines, Plasma

Methodology

High performance liquid chromatography/tandem mass spectrometry (LC-MS/MS)

Rejection Criteria

Room temperature samples
Refrigerated samples
Serum
Urine

Reference Range(s)

Age Specific Ranges

Specimen Requirements

Preferred Specimen

Sodium or lithium heparin (green top) tube

Minimum Volume

2.5 mL plasma

Sample Stability

After separation from cells:
Unacceptable room temperature
Unacceptable refrigerated
1 month frozen

Transport Temperature

Critical Frozen

Collection Instructions

Collect two (2) green top tubes for this test.
Chill tubes prior to collection. Patient should be calm and seated for 15 minutes prior to collection. Alternately, patient may be calm and supine for 30 minutes prior to collection. Centrifuge tubes and separate plasma from cells within 1 hour of collection. Transfer 4 mL plasma to a plastic transport tube. Clearly label tube as heparin plasma. Freeze. Critical Frozen (CFZ).
When multiple tests are ordered, submit separate tube for this test.

Alternative Specimen

Collect two (2) lavender top tubes for this test.
Chill tubes prior to collection. Patient should be calm and seated for 15 minutes prior to collection. Alternately, patient may be calm and supine for 30 minutes prior to collection. Centrifuge tubes and separate plasma from cells within 1 hour of collection. Transfer 4 mL plasma to a plastic transport tube. Clearly label tube as EDTA plasma. freeze. Critical Frozen (CFZ).
When multiple tests are ordered, submit separate tube for this test.