Dopamine, Plasma
What it measures
- Dopamine, PlasmaLOINC 2216-0
Before the visit
Fasting preferred
Overnight fasting is preferred. Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise prior to collection.
Specimen
- Specimen
- 2 mL frozen plasma collected in a sodium heparin (green-top) tube
- Minimum volume
- 1 mL
- Also accepted
- Frozen plasma collected in: EDTA (lavender-top) tube
- Container
- Transport tube
- Temperature
- Frozen
Draw specimen in a pre-chilled green-top tube. Patients should be relaxed in either a supine or upright position before blood is drawn. States of anxiety and stress can cause fluctuations in the catecholamine levels. Plasma should be separated in a refrigerated centrifuge within 30 minutes of collection and then frozen immediately at -20° C in plastic vials. Each specimen will be invoiced separately.
Turnaround
Set up: Mon-Fri (p.m.)
Billing
CPT 82542