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Doctor insights on: What Substances Interfere With The Results Of 24 Hour Urine Tests

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What substances interfere with the results of 24 hour urine tests?

What substances interfere with the results of 24 hour urine tests?

For what?: What is your doctor testing with the 24 hr collection of urine? Creatinine clearance, cortisol, calcium, cathecolamines, protein, cortisol or steroids? Depending upon the answer there are some medications or drugs that may interfere specifically. ...Read more

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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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They can't detect copper in my urine after two 24 hour urine tests. What can this indicate. My blood copper is rite on the normal mark and my cerulospasmin is a little low ..I am a 25 year old male.

They can't detect copper in my urine after two 24 hour urine tests. What can this indicate. My blood copper is rite on the normal mark and my cerulospasmin is a little low ..I am a 25 year old male.

Why do you ask?: If you are being screened for wilson's disease, finding no copper in your urine is good news. If none's detectable, the physician needs to call the pathologist in charge of the lab and ask why -- there's a problem. Healthy blood copper actually covers a considerable range (no 'mark'), and ceruloplasmin 'a little low' is only one item in a big picture. ...Read more

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My pcp did urinalysis for frequent urination then ordered a 24 hour urine collection..Is this likely due 2 too much protein he found in my urine?

My pcp did urinalysis for frequent urination then ordered a 24 hour urine collection..Is this likely due 2 too much protein he found in my urine?

Urine collection: The presence of proteinuria (p) is usually found on a urine analysis. To quantify how much p you have, a 24 hour urine collection is done. At the same time, your renal function also be assessed. If you have significant p, blood work will be ordered to see if a diagnosis of the cause of your p can be found. The causes of proteinuria are varied, with the most common one being diabetes. Good luck. ...Read more

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What's the relation of the results of 24-hour urine calcium test to slightly below normal IONIZED CALCIUM and slightly elevated INTACT PTH?

What's the relation of the results of 24-hour urine calcium test to slightly below normal IONIZED CALCIUM and slightly elevated INTACT PTH?

Here are some ...: Why have you been tested for PTH, 24-hr urine ... ? Of course, I assumed concerning recurrent urinary stone, right? How to interpret the report? All the reports have to be correlated & corresponded with clinical scenario, and slight variation (even off the chart) may carry no clinical significance. Before implementing strict stone prevention, take the general measures to keep daily U-output >2.5 L ...Read more

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Cortisol 24 hour urine test, my results were 13.0 ug/tv. What is the normal range?

See below: There is actually a wide range for normal and part of the range shifts with age. Your result is firngt in the middle of normal for your age. ...Read more

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Will over the counter medicine like uricalm affect the results of a 24-hour urine cortisol test?

Will over the counter medicine like uricalm affect the results of a 24-hour urine cortisol test?

Here are some ...: Uricalm is cleverly branded to deceit the public on its soothing effect of phenazopyridine; of course, it is less expensive than from prescription. Its possibility to affect 24-hr urine cortisol test is not well studied. So, to be realistic & practical, you may discontinue Uricalm for 3-5 days for cortisol test since it's to ease urinary irritation. Furthermore, checking with the lab would yield.. ...Read more

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Im on medications like diane 35, finasteride and aldactone (spironolactone). I have to take a 24 hour urine cortisol test. Will my medications affect the test result?

Im on medications like diane 35, finasteride and aldactone (spironolactone). I have to take a 24 hour urine cortisol test. Will my medications affect the test result?

Cortisol test: It would be best to have the 24 hour urine without the drugs for one day but before you do that you must check with your doctor. It is not very likely that the meds will interfere with the lab but why take the chance before discussing with your doctor. ...Read more