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Dopamine, plasma concentration (mass concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of dopamine, a chemical messenger (neurotransmitter), in your blood plasma. Dopamine helps regulate heart rate, blood pressure, and mood.

Quick summary

["Dopamine levels can help diagnose or monitor conditions affecting the nervous system or circulation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
19420-9
Short code
D-amphet Ur Ql Cfm
Synonyms
D-amphet Ur Ql Cfm
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your doctor may order this test to check for dopamine-related disorders, such as certain heart conditions (e.g., hypertensive emergencies), neurological issues, or to evaluate symptoms like high blood pressure, irregular heartbeat, or mood changes.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re on blood thinners, let your doctor know before the test.

What Happens During the Test?

A healthcare professional will collect blood from a vein in your arm. The sample is then sent to a lab for analysis. Results are typically ready within a few days.

What the Results Mean

Abnormally high or low dopamine levels may signal underlying health concerns, but results alone don’t diagnose a condition. Your doctor will interpret them in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Dopamine plays a key role in cardiovascular and neurological function. Elevated levels may indicate conditions like pheochromocytoma (a tumor affecting hormone release), while low levels could relate to heart failure or certain medications.

Short name

Plasma Dopamine Level

Frequently asked questions

What causes dopamine levels to change?
Dopamine levels can fluctuate due to medications (e.g., antipsychotics, blood pressure drugs), certain medical conditions (e.g., heart disease, stroke), or stress. Your doctor will consider these factors when reviewing results.
How long does it take to get results?
Results are usually available within 2–5 business days, depending on lab processing times. Your doctor will contact you once they’re ready.
Can diet or exercise affect this test?
Dietary changes or exercise alone typically won’t alter dopamine levels enough to impact this test. However, if you’re on medications affecting dopamine, discuss them with your doctor before testing.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy