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Doctor insights on: Elevated Urine Creatinine Level With Lupus

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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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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?

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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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

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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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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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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?

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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I have lupus -but my doctor never checks me urine ;but she does a cbc, cmp, esr, complements, cpk, bun, and creatinine. Should i be concerned w/ no ua?

I have lupus -but my doctor never checks me urine ;but she does a cbc, cmp, esr, complements, cpk, bun, and creatinine. Should i be concerned w/ no ua?

Urine in lupus: Lupus is known to affect the kidneys, however, not in every patient. If there is a concern that your kidneys are affected, you doc should check your urine. It sounds she checks your kidney function by way of creatinine, so she monitors kidney function already. If you have any symptoms related to your kidneys - frequency, urgency, bloody/cloudy urine you need to bring them up to your doc. ...Read more

Dr. Madhu Kandarpa
2,192 doctors shared insights

Creatinine (Definition)

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