Creatine kinase (CK) — lab reference

Purser Wellness approved rule

Unit: U/L

Male: 39-308

Female: 26-192

How to read this marker

Exercise, muscle mass, sex, race, trauma, injections, and statins affect values.

The wider testing context

Common adult starting intervals. Enzyme upper limits vary substantially by method and reference population.

Using this reference

This is the approved adult, nonpregnant baseline unless the rule explicitly states otherwise. Keep the performing laboratory’s reference interval separate from this Purser Wellness rule. Match units and review the specimen, method, timing, medicines and relevant clinical context before interpreting a result. These pages do not calculate a personal high/low status or prescribe treatment.

A question to bring to your visit

Which parts of the Creatine kinase (CK) rule apply to my report’s method, units and collection conditions, and what other findings should we review alongside it?

Names you may see

Creatine kinase (CK) · CK · Creatine kinase