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Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. This article discusses the test done to measure the amount of creatinine in your urine.
A blood test can also be used to determine your creatinine level. See: Serum creatinine
Alternative NamesUrine creatinine test
How the test is performedA random urine sample or a 24-hour collection may used. For information on how to collect a 24-hour urine sample, see: 24-hour urine collection.
How to prepare for the testYour health care provider may tell you to temporarily stop taking certain medicines that may interfere with test results. Such medicines include:
- Cephalosporins (cefoxitin)
- Cimetidine
- Cisplatin
- Gentamicin
- Trimethoprim
The test involves only normal urination, and there is no discomfort.
Why the test is performedThis test can be used as a screening test to evaluate kidney function. It may also be used as part of the creatinine clearance test. It is often used to provide information on other chemicals in the urine such as albumin or protein.
Normal ValuesUrine creatine (24-hour sample) values can range from 500 to 2000 mg/day. Results are highly dependent on your age and amount of lean body mass.
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results meanAbnormal results of urine creatinine are nonspecific, but may be due to any of the following conditions:
- Glomerulonephritis
- High meat diet
- Kidney failure
- Muscular dystrophy (late stage)
- Myasthenia gravis
- Prerenal azotemia
- Pyelonephritis
- Reduced kidney blood flow (as in shock or congestive heart failure)
- Rhabdomyolysis
- Urinary tract obstruction
Bazari H. Approach to the patient with renal disease. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 115.
What else can I help you with?
Is there creatinine in normal urine?
Yes, creatinine is normally found in urine as it is a waste product produced by muscle metabolism. The level of creatinine in urine can be an indicator of kidney function.
How is the calculation of 24 hour urine creatinine done?
To calculate the 24-hour urine creatinine, the amount of creatinine excreted in the urine over a 24-hour period is determined by collecting all urine passed during this time. The creatinine concentration in this pooled urine sample is then measured. Finally, the creatinine concentration is multiplied by the volume of the urine collected to obtain the total amount of creatinine excreted in a 24-hour period.
What is found in urine?
creatinine
Where can you get Serum Creatinine?
urine
What is spot urine creatinine?
Spot urine creatinine is a measure of the level of creatinine in a single urine sample collected at any time of the day. It is often used to assess kidney function and as a correction factor when analyzing other urine markers.
Where are the creatinine level higher in the condition of uroperitoneum?
Creatinine is a waste product that is normally excreted by the kidneys into the urine. Uroperitoneum is when urine is found in the abdominal cavity and is an abnormal condition. The creatinine from the urine is reabsorbed out of the abdominal cavity, thus increasing the blood levels of creatinine.
What is urine creatinine?
creatinine random urine=297.8
What is the gender of the person that has serum creatinine 1.7 mgdl and urine creatinine 130mgdl and 1200ml?
a female
How is the calculation of creatinine clearance from 24 hour urine collections done?
There is a special device called a toilet hat that you place in the toilet. It fits under the rim. You pee in it, take it out and empty it into a special collection jug set aside specifically for this purpose. After collection of the 24 hour excreted urine,creatinine clearance (CrCl) is calculated using the formula CrCl= (Ucr x V)/ (SrCr x t) where Ucr is creatinine concentration in urine V is volume of urine in ml SrCr is creatinine concentration in the serum and t is the time period of urine collection
What does raised creatinine clearance mean?
Creatinine and creatinine clearance tests measure creatinine levels (the level of the waste product) in your blood and urine to give information about how well your kidneys are working. The substance creatine is formed when food is changed into energy through a process called metabolism. Creatine is broken down into another substance called creatinine, which is taken out of your blood by the kidneys and then passed out of your body in urine. Creatinine is made at a steady rate and is not affected by diet or by normal physical activities. If your kidneys are damaged and cannot work normally, the amount of creatinine in your urine goes down while its level in your blood goes up. The creatinine clearance value is found from the amounts of creatinine in the urine and blood and from the amount of urine you pass in 24 hours. This value is the amount of blood cleared of creatinine per minute, based on your body size.
Is elevated levels of urine creatinine are found in leukemia?
no
What does high blood creatinine?
Creatinine is a waste product of our metabolism. Some factors that may lead to high urinary creatinine level are pregnancy,hypothyroidism,muscle injury(esp. crushing injury) and strenuous exercise.
