Understand your Creatinine Blood Test Results…

This page helps you to understand blood test results for Creatinine and gives you the reference range to determine if your lab test results mean that you have high cholesterol, low cholesterol or normal cholesterol levels. 

We outline the risk factors associated with raised creatinine levels.

Reference Ranges for Creatinine:

Measurement unit Metric Optimal Risk
US Conventional Units mg/dl 67-1.18 <.67 or >1.18
Standard International Units umol/L 59-104 <59 or > 105
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What is Creatinine

Creatinine is a chemical waste product that is produced by your muscle metabolism and to a smaller extent by eating meat. Healthy kidneys filter creatinine and other waste products from your blood. The filtered waste products leave your body in your urine.

If your kidneys aren’t functioning properly, an increased level of creatinine may accumulate in your blood. A serum creatinine test measures the level of creatinine in your blood and provides an estimate of how well your kidneys are filtering (glomerular filtration rate) [52].

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Function of Creatinine

Creatinine is produced from the breakdown of creatine [53].

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Risk factors associated with Creatinine

Increased creatinine levels in the blood can suggest kidney disease or other conditions that affect kidney function. These can include:

  • Damage to or swelling of blood vessels in the kidneys (glomerulonephritis) caused by, for example, infection or autoimmune diseases
  • Bacterial infection of the kidneys (pyelonephritis)
  • Death of cells in the kidneys’ small tubes (acute tubular necrosis) caused by, for example, drugs or toxins
  • Prostate disease, kidney stone, or other causes of urinary tract obstruction
  • Reduced blood flow to the kidney due to shock, dehydration, atherosclerosis, or complications of diabetes [53].

Low blood levels of creatinine are not common, but they are also not usually a cause for concern. They can be seen with conditions that result in decreased muscle mass [53].

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Notable variations by demographic group

Children and the elderly tend to have less muscle than active adults and therefore tend to have lower levels of creatinine [53].

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Diet to improve Creatinine

A kidney-friendly diet limits certain foods to prevent the minerals in those foods from building up in your body. Controlling high blood pressure and diabetes also helps to prevent kidney damage [60].

  • Some doctors recommend that people with kidney disease limit protein, as a diet very high in protein can make the kidneys work harder and may cause more damage.
  • Choosing and preparing foods with less salt and sodium will help to control blood pressure.
  • Grill, broil, bake, roast, or stir-fry foods, instead of deep frying.
  • Cook with nonstick cooking spray or a small amount of olive oil instead of butter.
  • Trim fat from meat and remove skin from poultry before eating [60].
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Supplements for Creatinine

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Exercise to improve Creatinine

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Sleep for Creatinine