Creatinine is a waste product of your body’s creation of energy from nutrients (energy metabolism). It passes your kidneys to be filtered and leave your body through urine. It is a byproduct of muscle function. If a person has many muscles, he will have a high creatinine level. Levels of creatinine in the blood reflect two things: the amount of muscle a person has and their kidney function. The creatinine level is usually tested through a serum creatinine test. This article will introduce to you normal creatinine range.
What does a high creatinine level mean?
Generally, a high serum creatinine level means that your kidneys aren’t working well. However, your creatinine level may temporarily increase if you’re dehydrated, have a low blood volume, eat a large amount of meat or take certain medications. So don’t panic if the results are higher than normal. Have another blood test or a urine test.
General normal range of creatinine from a serum creatinine test:
Normal range of creatinine is 0.7-1.3 mg/dL for men, and 0.6-1.1 mg/dL for women. This can vary slightly from lab to lab.
The below table is the reference for each age and gender group. In translating into micromoles per liter, please time 88.4.
Normal creatinine range for children and adolescents:
- Newborn aged 1-4 days: 0.3-1 mg/dL (27-88 mcmol/L)
- Infants less than 2 years: 0.1-0.4 mg/d (8-35 mcmol/L)
- Children 2 years to < 6 years: 0.2-0.5 mg/dL (18-44 mcmol/L)
- Children 6 years to < 10 years: 0.3-0.6 mg/dL (27-53 mcmol/L)
- Adolescents: 10 years to < 18 years: 0.4-1.0 mg/dL (35-88 mcmol/L)
Normal creatinine range for adults:
- Women (18-60 years): 0.6-1.1 mg/dL (53-97 mcmol/L)
- Women aged 60 to 90 years: 0.6-1.2 mg/dL (53-106 mcmol/L)
- Women aged > 90 years: 0.6-1.3 mg/dL (53-115 mcmol/L)
- Adult men (18-60 years): 0.7-1.3 mg/dL (80-115 mcmol/L)
- Men aged 60 to 90 years: 0.8-1.3 mg/dL (71-115 mcmol/L)
- Men aged > 90 years: 1-1.7 mg/dL (88-150 mcmol/L)
Here is another set of normal ranges, for the range from serum creatinine test often varies from lab to lab:
- 18 years to < 41 years: Female: 0.5-1.0 mg/dL
- 18 years to < 41 years: Male: 0.6-1.2 mg/dL
- 41 years to < 61 years: Female: 0.5-1.1 mg/dL
- 41 years to < 61 years: Male: 0.6-1.3 mg/dL
- 61 years and above: Female: 0.5-1.2 mg/dL
- 61 years and above: Male: 0.7-1.3 mg/dL
- Critical Values: > 4 mg/dL (indicates serious impairment in renal function)