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Cyclosporine Blood Mass Concentration

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

This test measures the amount of cyclosporine, a medication used to prevent organ rejection after a transplant or to suppress immune responses in certain conditions, in your blood.

Quick summary

["Your cyclosporine level helps doctors monitor how well your body is responding to this medication."]

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

Key facts at a glance

LOINC
3520-4
Short code
cycloSPORINE Bld-mCnc
Synonyms
cycloSPORINE Bld-mCnc
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Doctors order cyclosporine blood tests to ensure you’re taking the right dose of this medication. It’s especially important if you’ve had an organ transplant or if you have a condition like rheumatoid arthritis or psoriasis that requires immune system control. Regular testing helps prevent side effects, such as high blood pressure, kidney problems, or infections, while ensuring the medication works effectively.

How the Test Works

A small blood sample is taken from a vein in your arm. The sample is then analyzed in a lab using a technique called immunoassay to measure the exact amount of cyclosporine in your blood.

What to Expect Before the Test

There are no special preparations needed for this test. You may have some mild discomfort or bruising at the injection site, but this usually goes away quickly. If you’re on other medications or have health conditions, let your doctor know before the test.

What the Results Mean

Your results will show the concentration of cyclosporine in your blood. Your doctor will compare these results to your treatment plan to adjust your dose if needed. Low levels may mean your medication isn’t working well, while high levels could indicate side effects or improper dosing.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Cyclosporine Level

Frequently asked questions

How often should I get this test?
Your doctor will determine how often you need cyclosporine blood tests based on your treatment plan, medical history, and how your body responds to the medication. Typically, tests are done at regular intervals (like every few weeks or months) to check your levels.
What happens if my cyclosporine level is too high?
If your cyclosporine level is too high, your doctor may adjust your dose downward to reduce side effects like kidney problems, high blood pressure, or increased risk of infections. They may also monitor you more closely until the level returns to a safe range.
Can I eat or drink before this test?
You can eat and drink normally before this test, as no special preparation is required. However, if you’re on a strict diet or have specific dietary restrictions, let your doctor know before your appointment.
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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