The reference values for creatinine (much used as a reflex of the function of the kidneys) vary according to the technique of analysis of each laboratory, but, on average, are:
- children from 1 to 5 years: 0.3-0.5mg / dL
- children aged 5 to 10 years: 0.5-0.8mg / dL
- male adults: 0.7-1.2mg / dL
- female adults: 0.5-1.1mg / dL
The laboratory in which the patient's blood is analyzed should inform the reference values and it is important to be aware of the units in which the results are released, as there is a large variation (for example, a value of 1.2 mg / dL is equivalent to 106μmol / L creatinine).
Creatinine values below the reference may reflect:
- Short
- Low muscle mass
- Advanced liver disease
- Malnutrition
Creatinine values above the reference may reflect:
- Intake of meat
- Muscle diseases such as polymyositis, dermatomyositis, paralysis and dystrophies
- Prolonged use of "cortisone"
- Hyperthyroidism (hyperfunctioning thyroid gland)
- Use of medications, such as methyldopa, trimethoprim, cimetidine, and salicylates
The interpretation of the laboratory tests is the responsibility of the doctor who must be made in conjunction with the history and clinical examination. For further clarification, one should seek a general practitioner.
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