Dopamine, Plasma

Dopamine, Plasma

Test Name: Dopamine, Plasma
Sample Type: Plasma
Department: Clinical Biochemistry / Special Chemistry

About the Test

Dopamine is a neurotransmitter and catecholamine involved in brain function, movement, mood, blood pressure regulation, and the body's stress response. Plasma dopamine testing measures the concentration of dopamine circulating in the blood.

Why is the test done?

• Evaluation of suspected catecholamine-secreting tumors, such as pheochromocytoma/paraganglioma
• Investigation of unexplained episodes of high blood pressure, palpitations, sweating, or headaches
• Assessment of abnormal catecholamine production
• Monitoring in selected clinical situations

Sample Required

• Plasma
• Proper patient preparation and sample handling are important because dopamine levels can be affected by stress, posture, medications, exercise, and food intake.

Clinical Significance

Elevated dopamine may be associated with certain neuroendocrine tumors, medications, physiological stress, or other clinical conditions.
Low levels are generally interpreted in the context of the patient's symptoms and other laboratory findings.

Important: Results should be interpreted by a qualified physician along with clinical findings and other relevant catecholamine/metanephrine tests.