Colchicine Serum Mass Concentration

Why Is This Test Done?

Your healthcare provider may order this test if you’re taking colchicine to manage conditions like gout, familial Mediterranean fever, or periodic fever syndromes. They may also check levels if you experience side effects like nausea, vomiting, or unusual weakness, which could indicate too much colchicine in your system.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for a few hours before the test, but always follow your provider’s instructions. Bring a list of all medications, including over-the-counter drugs and supplements, to share with your healthcare team.

What Happens During the Test?

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a slight pinch, but the procedure is quick. The blood sample is then sent to a lab for analysis.

What Do the Results Mean?

Results are typically reported as a mass concentration of colchicine in your blood. High levels may signal toxicity, which can cause serious side effects. Your provider will interpret the results in the context of your symptoms, medical history, and medication use.