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Doctor insights on: What Is A Normal Level Of Urine Creatinine

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What is a normal urine creatinine level?

What is a normal urine creatinine level?

No such thing: We don't publish a reference range as people would worry. The more muscle mass you have, the more creatinine you put out daily. The level in turn is also a function of how much water you drink -- whether the urine is concentrated or dilute. And there's no illness for which increased or decreased production is a marker. If you do find a published range, ignore it. ...Read more

Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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Why is it so hard to find out normal urine creatinine and calcium levels for a 5 yr old if 3, 3 creatinine , 2.4 calcium..What is norm ? Shud i worry?

Why is it so hard to find out normal urine creatinine and calcium levels for a 5 yr old  if 3, 3 creatinine , 2.4 calcium..What is norm ? Shud i worry?

Worthless number: The total creatinine put out varies primarily with the total mass of skeletal muscle. You'll never find a "normal" value for either. The concentration is even more variable as it depends on how much water was drunk. The urine creatinine is measured only as something to compare with a semi-constant, the creatinine. People aren't numbers, and we do a disservice focusing on labs apart from history. ...Read more

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Is 3822.00 mmol/l normal 24- hour urine creatinine? Is 200.1ug/24h normal cortisol level for 24 hour urine test?

See below: Normal urine creatinine (24-hour sample) values range from 7-21 mmol/day (males) and 5-16 mmol/day (females). Results depend greatly on your age and amount of lean body mass. Normal urine 'free' cortisol (24-hour sample) is usually less than 50 ug (=mcg). ...Read more

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What does high urine creatinine of 390.1mg/dl mean but everything else is normal ?

What does high urine creatinine of 390.1mg/dl mean but everything else is normal
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Dehydration: It appears that you may have dehyrdated cauisng hypernatremic (hypertonic) dehydration. This occurs when the lost fluid contains less sodium than the blood (loss of hypotonic fluid). Relatively less sodium than water is lost. Please be sure blood glucose, sodium and chloride levels were normal. I would see your doctor and have the urine test repeated along with a urinary sodium level. ...Read more

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Should i be concerned about urine creatinine levels over 165 mg/dl and high protein levels?

Should i be concerned about  urine creatinine levels over 165 mg/dl and high protein levels?

Depends: It depends how high the protein levels are when they were checked. High urine protein levels are often a marker of kidney disease. High blood protein levels can be seen in multiple myeloma. This is concerning, and i would ask your physician for additional information. ...Read more

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My urine creatinine was 20 when 4 months ago it was 73, my BUN level was 7. What could be causing this?

This means nothing: Urine creatinine varies with your hydration. You excrete a certain amount daily depending mostly on your muscle mass. Drink twice as much water, and you cut your creatinine in half. It's worth measuring only as a standard against which to compare other elements measured in your urine. A "low BUN" means nothing. You're not a kidney patient. I'm sorry no one explained this to you. ...Read more

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Should I be concerned with an Urine Creatinine level of 518.5 mg/dL, but I was dehydrated at the time of the test (just finished running 3 miles)?

Urine creatinine: No - if this was a 24 hour level - expect 14-26 mg per kg for a male fo that would be on the low side. if it was a "spot" urine - its going to be off due to the dehydration from running. I would repeat it if needed when you haven't run and are hydrated. ...Read more

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Random sample: urine protein 31mg/l urine albumin 5.00mg/l urine creatinine 3.894mmol/l urine albumin creatinine:ratio 1.3mg/mmol is this normal?

Is this a test?: Slight variation in the reports from different laboratories does exist. So, please refer to the attached normal range for interpretation. I'm sure there is such information for you to reconcile. If any doubt, talk and confirm with the attending doctor. Best ... ...Read more

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My lab results show high levels of protein in urine 27 mg, urine creatinine 316.3 mg but levels of protein/creatinine ratio 90 mg. What does it mean?

Ur Protein/Cr ratio: The urine protein to urine creatinine ratio is an estimate of the 24hr urine protein. It is less cumbersome and quick. A urine protein to creatinine ratio of 0.15 or less would be consdered normal. For example urine protein of 30 and urine creatinine of 300 would be a upc of 0.1. ...Read more

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My lab results show high levels of protein in urine 27 mg, urine creatinine 316.3 mg but levels of protein/creatinine ration 90 mg. What does it mean?

My lab results show high levels of protein in urine 27 mg, urine creatinine 316.3 mg but levels of protein/creatinine ration 90 mg. What does it mean?

Protein in urine: The results mean that you probably have a lot of protein in your urine. To determine how much, you need to see a nephrologist and have a 24 hour urine collection to assess the amount of protein in your urine as well as your renal function. Depending on the amount of protein in your urine, you may need to have additional blood tests to see if you have any type of glomeulonephritis or diabetes. ...Read more

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23M, Hypothyroid. TSH now 0.005, T3 (liothyronine) 6.88 & T4 20.35. Urine Creatinine also 282. Taking Euthyrox 50mcg everyday. All reports seem normal.Please advice.

23M, Hypothyroid. TSH now 0.005, T3 (liothyronine) 6.88 & T4 20.35. Urine Creatinine also 282. Taking Euthyrox 50mcg everyday. All reports seem normal.Please advice.

Little too fast.: Those numbers would suggest that your thyroid is running a little bit too fast. Depending on the presence or absence of symptoms of a fast thyroid, you may need an adjustment in your medication. ...Read more

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What causes your urine creatinine to be high in the morning?

What causes your urine creatinine to be high in the morning?

Concentration: Morning urine is usually more concentrated and all urine contents are at a higher level in the morning urine. ...Read more

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I have low urine creatinine at 2.2 mmol/L. What could this mean?

Absolutely nothing: You're probably not a female bodybuilder and you drank a little extra water. I'm glad I could reassure you. ...Read more

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I'm a 43 year old man and my urine creatinine was measured at 42.4 mmol/L. Is it in safe range?

I'm a 43 year old man and my urine creatinine was measured at 42.4 mmol/L. Is it in safe range?

Yes: Urine creatinine means nothing in any case. It's secreted at a constant rate in proportion to your muscularity. It's merely a reference value to which you compare other analytes. ...Read more

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Why might it be that we use urine creatinine when caclucating GFR ?

Not reabsorbed: Creatinine is used to calculate glomerular filtration rates because the kidney does not reabsorb it: whatever gets filtered into the glomerulus ends up in the urine. So it is a reliable indicator of how much blood has been filtered. All you have to calculate is the volume of blood that contained the amount of creatinine that appeared in the urine over a certain time. ...Read more

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Why would my blood creatinine be low and my urine creatinine be high?

Why would my blood creatinine be low and my urine creatinine be high?

Strong kidneys!: It sounds like your kidneys are working normally. That's what they're supposed to do -- clear metabolic products like creatinine from the blood, dumping it into the urine. The urine level might be especially high if you haven't been drinking lots of fluids lately, i.e. if the urine is relatively concentrated. In any case, this is a good sign, nothing to worry about. ...Read more

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What does it mean when random urine creatinine is high?

This is normal: Creatinine is normally excreted in the urine. The concentration of creatinine by itself means nothing other than the kidneys are doing their job. Blood creatinine will tell you better how well the kidneys are working. ...Read more

Dr. Madhu Kandarpa
2,203 doctors shared insights

Creatinine (Definition)

Creatinine is a byproduct of creatine phosphate, which is present in muscles. Creatinine levels increase if the ...Read more