Top
10
Doctor insights on: Why Is Creatinine Measured In A 24 Hour Urine Collection

Share
1

1
Why is creatinine measured in a 24 hour urine collection?

Why is creatinine measured in a 24 hour urine collection?

Tell kidney function: Single urine specimens can be tested for creatinine. But daily urine output and urinary concentration varies hence a 24 hr urine collection. Normal creatinine output for an adult should be >1gm/24 hours. Also getting blood creatinine provides optimal way to accurately determine creatine clearance which in turn is a most accurate way to measure kidney function. ...Read more

See 1 more doctor answer

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


3

3
Creatinine was 1.15 then 2 months later 24 hour urine was normal?

Creatinine was 1.15 then 2 months later 24 hour urine was normal?

Likely no problem.: Your creatinine is within normal range (< 1.5 mg/dl). Normal ranges can vary, but this is well within many. Your 24 urine was normal, which likely means your kidneys are working properly and you likely don't have any diseases, like diabetes, etc. That cause abnormal amounts of urine to be produced. ...Read more

4

4
Is 3822.00 mmol/l normal 24- hour urine creatinine? Is 200.1ug/24h normal cortisol level for 24 hour urine test?

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

6

6
My aunt had cll, & I have a tiny IgM kappa monoclonal in beta2, 24 hour urine has elevate creatinine, elevated crp. What's going on?

Need work-up: You should see a hematologist/oncologist and have some work-up done- some blood works and a bone marrow biopsy would be important. There are different conditions that can cause monoclonal protein- and this needs to be investigated further. ...Read more

9

9
If doing a 24 hour urine collection for calcium what is normal levels of calcium peed out in 24 hr period? I peed 1600 ml

If doing a 24 hour urine collection for calcium what is normal levels of calcium peed out in 24 hr period? I peed 1600 ml

Here are some ...: 24-hour urine test for calcium is just a reference, not the sole deciding factor to accuse how urinary stone occur in an individual. So, discuss lab result & ask Qs with treating Doc so to deduce clinical significance of test reports & recommend reasonable care. Besides possible specific advice, daily urine output >2500 cc and lower oral intake of salt, dairy products, & red meat by >50% is decent ...Read more

10

10
Will beer show up in a 24 hour urine collection for a cortisol level if drank during collection time?

Will beer show up in a 24 hour urine collection for a cortisol level if drank during collection time?

Alcohol Testing: Yes. Of course. But, there will not be anyone besides you who knows it. There is no alcohol testing as part of a 24 hour urine collection. ...Read more

Dr. Madhu Kandarpa
2,189 doctors shared insights

Creatinine (Definition)

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