Creatinine – what do your numbers mean?
Have you had your creatinine level measured and are unsure what the numbers mean? Here you will find a clear explanation of the normal range, what a high or low level can mean, and when it makes sense to get tested.
What is the normal range for Creatinine?
What is the normal range for Creatinine?
The normal range for creatinine in the blood varies depending on age, gender, and muscle mass. For adult women, it is typically between 45-90 µmol/L, while for adult men it is between 60-105 µmol/L. In children and infants, the values are lower, for example, 14-34 µmol/L for infants between 2 months and 1 year. Pregnant women often have lower values, approximately 20% below normal, due to increased kidney function. Variations can also occur between laboratories. Being close to the limit values can indicate incipient kidney impairment or muscle-related changes, and this should be assessed by a doctor.
What does a low level mean?
A low level of creatinine in the blood can be due to low muscle mass, which is often seen in the elderly, individuals with muscle wasting, or those who are malnourished. Other causes may include pregnancy, where kidney function increases, or a very low protein intake. Symptoms are rare, but can include muscle weakness. Particularly vulnerable groups include the elderly and individuals with chronic diseases that reduce muscle mass. If you have a low creatinine level, you should consult a doctor to assess whether further investigations or changes in diet and lifestyle are necessary.
What does a high level mean?
A high level of creatinine can indicate impaired kidney function, which can be caused by chronic kidney disease, acute kidney failure, or blockages in the urinary tract. Other causes can include dehydration, high protein intake, or muscle damage such as rhabdomyolysis. Symptoms can include fatigue, swelling, and changes in urine output. It is important to contact a doctor if the creatinine level is elevated, especially if it is accompanied by other symptoms. The doctor may recommend further tests such as eGFR to assess kidney function and determine appropriate treatment.
Get your Creatinine level tested
At Celto, you can order a blood test for Creatinine directly online – without a referral from your doctor and without a long waiting time. We have over 34 sample collection sites at public hospitals throughout Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want to have tested – no doctor's referral necessary. After your purchase, you will receive an email with a link to our booking system, where you choose a time and location. The blood sample itself is taken by authorized healthcare personnel and typically only takes a few minutes.
Where you can get tested
Celto has over 34 sample collection sites at public hospitals and clinics around Denmark. You choose the location that suits you best among our partners, and there are typically available times within a few days. Find your nearest sample collection site →
How you get your results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system, with the exact same quality and the exact same tests. You will receive your results directly on sundhed.dk within a few business days, and Celto will also send an easy-to-understand review of your values so you know what the numbers mean.