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Also reported in: umol/L, mmol/L
A normal serum creatinine means your kidneys are clearing this muscle waste product at a healthy rate. Since creatinine is produced continuously by muscles and filtered out entirely by healthy kidneys, a normal level indicates the filtration system is functioning well. Normal creatinine is a basic but important indicator of kidney health.
Creatinine is a waste product produced by muscle activity and filtered out by the kidneys. A very low creatinine usually means the body has very low muscle mass — common in older adults, people who are underweight, or those with certain muscle conditions — rather than a kidney problem. Very low creatinine alone is generally not concerning for kidney function.
No kidney concern from this result. Discuss with your doctor if there are concerns about muscle mass or nutritional status.
Serum Creatinine: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})A slightly low creatinine is most commonly seen in people with lower muscle mass, smaller body frames, or during pregnancy (when blood volume increases and dilutes creatinine). It is generally not a sign of kidney disease. The kidneys are likely not overperforming — low creatinine simply reflects less muscle waste being produced.
Not a clinical concern for kidney function in most cases. Mention it to your doctor if you have had unexplained muscle loss.
Serum Creatinine: {{value}} {{unit}} — low (ref: {{low}}–{{high}})Borderline low creatinine is a very common and generally benign finding. It reflects lower daily muscle breakdown rather than a kidney issue. Women, petite individuals, elderly patients, and vegetarians often have creatinine at the low end of the range. The kidneys are doing their job normally.
No action needed. This is a normal variation based on body composition.
Serum Creatinine: {{value}} {{unit}} — borderline low (ref: {{low}}–{{high}})A normal serum creatinine means your kidneys are clearing this muscle waste product at a healthy rate. Since creatinine is produced continuously by muscles and filtered out entirely by healthy kidneys, a normal level indicates the filtration system is functioning well. Normal creatinine is a basic but important indicator of kidney health.
Good result. Stay well-hydrated and maintain kidney health with regular check-ups.
Serum Creatinine: {{value}} {{unit}} — normal (ref: {{low}}–{{high}})An optimal creatinine in the mid-normal range indicates healthy kidney filtration that is clearing muscle waste at a well-calibrated rate. This level, interpreted alongside eGFR (a number that shows how well your kidneys filter your blood), provides reassurance about normal glomerular function. Consistently optimal creatinine over time reflects well-maintained kidney health.
Excellent kidney marker. Keep kidneys healthy with adequate hydration, avoiding nephrotoxic substances, and regular monitoring.
Serum Creatinine: {{value}} {{unit}} — optimal (ref: 0.7–1.1)A borderline elevated creatinine means the kidneys may be clearing muscle waste slightly less efficiently than optimal. This can occur with mild dehydration, recent intense exercise, early kidney disease, or use of certain medications. Context matters noticeably — even a small rise in creatinine over time can signal progressive kidney disease.
Retest after ensuring good hydration. Discuss with your doctor if creatinine has been trending upward. eGFR (a number that shows how well your kidneys filter your blood) should also be reviewed.
Serum Creatinine: {{value}} {{unit}} — borderline elevated (ref: {{low}}–{{high}}; borderline: 1.2–1.5)An elevated creatinine above 1.5 mg/dL is a meaningful sign that kidney filtration is impaired. As creatinine builds up in the blood, it indicates that kidneys are not clearing this waste product efficiently. This can occur with chronic kidney disease, acute kidney injury, dehydration, or obstruction of the urinary tract.
See your doctor soon. A repeat test with eGFR (a number that shows how well your kidneys filter your blood), urine albumin, and kidney ultrasound may be recommended to assess the degree of kidney function impairment.
Serum Creatinine: {{value}} {{unit}} — elevated (ref: {{low}}–{{high}}; elevated: >1.5)A very high creatinine above 10 mg/dL represents noticeable kidney failure. The kidneys are unable to filter blood properly, causing massive accumulation of toxic waste products. At this level, dangerous conditions including uremia, acid-base imbalance, dangerous potassium levels, and fluid overload may be developing simultaneously. This requires dialysis in many cases.
This needs urgent medical attention. Go to the hospital immediately. Very high creatinine may require dialysis and intensive nephrology management.
Serum Creatinine: {{value}} {{unit}} — very high (ref: {{low}}–{{high}}; critical: >10)Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.