LabInformationLab tests, explained

Creatine Kinase (CK) Test in California

Creatine Kinase (CK) Test is a laboratory test you can order directly. A creatine kinase (CK) test measures the amount of CK, an enzyme found mainly in muscle, in your blood. It is ordered when a clinician suspects muscle damage, inflammation, or breakdown from injury, strenuous exercise, or certain medications. It can also help monitor muscle conditions over time. Across California, part of Pacific, the creatine kinase (ck) test can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
General Wellness
Turnaround
1-3 business days
Price
$28
Referral
Not required

A creatine kinase (CK) test measures the amount of CK, an enzyme found mainly in muscle, in your blood. It is ordered when a clinician suspects muscle damage, inflammation, or breakdown from injury, strenuous exercise, or certain medications. It can also help monitor muscle conditions over time.

What it measures

  • Total CK — The overall amount of CK enzyme in the blood.
  • CK-MM — The form found mostly in skeletal muscle.
  • CK-MB — The form found mostly in heart muscle.
  • CK-BB — The form found mostly in the brain and smooth muscle.

Who it is for

A clinician may order this test if you have muscle pain, weakness, dark urine, or swelling, or if you take a medication that can affect muscles. It is also used to follow known muscle conditions.

Preparation

No fasting is required. Tell your clinician about recent strenuous exercise, injections, or muscle injury, because these can raise CK levels.

Results and what they mean

Results are reported as a number in units per liter, often with a reference range. A clinician interprets the result alongside your symptoms, medications, and activity level. This is general information, not medical advice; discuss your results with a qualified healthcare professional.

Requesting the Creatine Kinase (CK) Test in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Pacific is uneven, so confirming a site ahead of time is worthwhile.

Frequently asked questions

Can exercise affect my CK result?

Yes. Strenuous or unfamiliar exercise can raise CK levels, sometimes for several days. Tell your clinician about recent activity.

Do I need to fast for this test?

No. Fasting is not required for a CK test.

What can cause high CK levels?

Muscle injury, intense exercise, certain medications, and some medical conditions can raise CK. A clinician will consider the full picture.

How long until I get results?

Results are typically available within 1 to 3 business days.

Creatine Kinase (CK) Test by city in California

All testing in California →   Full Creatine Kinase (CK) Test guide →