How CK appears on your report
Look for Creatine Kinase (CK). It may also be printed as CK. The result is normally shown in U/L, next to the reference interval used by the laboratory that ran the test.
Note the collection date before you compare it with anything, along with the context that matters for this marker: heavy resistance training, long endurance sessions, unfamiliar exercise, muscle injury and some medicines can raise it for days.
CK range in Australia
The harmonised Australian adult reference interval for CK is 45–250 U/L for men and 30–150 U/L for women. Vector tracks against the same range.
Vector’s optimal range is the band the app tracks against and the one printed in the doctor report. Why the two differ. Reference interval source: AACB / RCPA Common Reference Intervals.
What to read alongside CK
A single marker rarely explains itself. These results are commonly interpreted together with CK, and Vector keeps them within reach of each other as your record grows.
Tracking CK over time
One CK result is a single point. Import the report into Vector, check the extracted value, unit and collection date, and it becomes the start of a series instead — with each later report adding a dated point you can actually compare against.
Further reading
CK is read the same way every other result on the report is. These two guides cover that method rather than this marker:
- How to read an Australian pathology report — A practical guide to dates, units, reference intervals and the context that belongs beside an Australian pathology result.
- Pathology report reference ranges: what they mean — Understand the laboratory interval, Australian guidance and the product context Vector adds to a result over time.
Common questions
What is the optimal CK level?
Vector treats 45–250 U/L as the optimal range for CK, with sex-specific bands of 45–250 for men and 30–150 for women. For this marker Vector's optimal range matches the harmonised Australian reference interval, so clearing the laboratory range and sitting in Vector's target are the same thing.
What is the normal range for CK in Australia?
The harmonised Australian adult reference interval for CK is 45–250 U/L for men and 30–150 U/L for women. This interval is harmonised across participating Australian and New Zealand laboratories, so it does not change between providers. Male interval applies under 60 years; 40–200 U/L from 60 years.
What unit is CK reported in on Australian pathology reports?
CK is usually reported in U/L on Australian pathology reports. The performing laboratory prints a reference interval in the same unit beside the result, and that interval is the one that governs your individual result.
What can change your CK result?
Heavy resistance training, long endurance sessions, unfamiliar exercise, muscle injury and some medicines can raise it for days.
What else is CK called?
Creatine Kinase (CK) may also appear as CK on a pathology report. Laboratories differ in the label they print, which is why Vector matches on several names for the same analyte.
Sources
- RCPA Manual: Creatine kinaseAustralian pathology reference for this test and related result context.
- RCPA Manual: Pathology TestsAustralian pathology context and laboratory-interval guidance.
Published 2 August 2026 · Updated 3 August 2026 · Author Vector