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Doctor insights on: Creatinine Clearance Problem Examples

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Dr. Ronald Krauser
39 doctors shared insights

Creatinine Clearance (Definition)

Creatinine clearance is used in clinical practice to give an estimate of overall kidney function, or glomerular filtration rate. Generally normal is considered 100 or above, but it goes down every year and elderly patients may have low clearance ...Read more


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Creatinine clearance? What for?

Creatinine clearance? What for?

Kidney function: Creatinine clearance is a calculation that serves as a measure of kidney function. There are 5 stages of kidney disease before end-stage. The stage guides treatment and allows the doctor to monitor changes over time. ...Read more

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What is a creatinine clearance?

What is a creatinine clearance?

Kdney function: A measure of your kidneys ability to clear waste products from the blood stream. It is calculated from your Creatinine level and takes your age, sex and weight into account. ...Read more

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Creatinine clearance --what exactly is it?

It is a measure: Of creatinine, a breakdown product of muscle, and the efficiency of it's removal by functioning kidneys. It is measured by a blood testof creatinine, and a 24 hour urine collection to assess how much is cleared per hour. It is the gold standard of kidney function. ...Read more

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Is it ok to have creatinine clearance of 42 at 92 ?

Almost normal: It is normal to lose some filtering units with age so that after age 40 the creatinine clearance starts to fall. This will be accelerated by hypertension or obesity or diabetes but even in normal individuals it falls at a lower rate. At age 90 a creatinine clearance of about 60 mls per min would be expected so 42 is close to it. ...Read more

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Doing creatinine clearance test is pain in the a#@?

Peeing in a bottle:): Creatinine clearance is an exact measurement of renal function, much more accurate than calculation made from serum creatinine alone. The 'pain' i guess you are referring to is that to do the test accurately requires collecting every drop of urine in a special bottle given by the lab for 24 hours. Enjoy the challenge-:). ...Read more

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What are the sources of error for creatinine clearance?

What are the sources of error for creatinine clearance?

Creatinine clearance: The most common cause is improper urine collection which means all the urine is not collected in the container. The other reason could be not collecting blood specimen for serum creatinine once you finished the urine collection. Another reason could be not collecting urine in proper container and the last reason can be not writing the correct total volume of the urine. ...Read more

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What does it mean when you have a low creatinine clearance?

Impairment: of kidney function. The kidneys are not filtering waste out of the blood as efficiently as they should. Most of the time low creatinine clearance is due to some sort of disease of the kidneys themselves like inflammation or decreased blood supply. Recurrent urinary tract infections can also damage the kidneys. Best to see a nephrologist for evaluation. Thanks for trusting HealthTap! ...Read more

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What is the formula for determing a creatinine clearance rate?

24 hour urine: 24 hour urine is collected to measure the amount of creatinine excreted in 24x60 minutes. This is then divided by the serum concentration of creatinine to estimate the volume of plasma cleared of creatinine in one minute. Creatinine clearance rate has mostly been replaced by estimated glomerular filtration rate, that requires only the measurement of serum creatinine. ...Read more

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What is the definition or description of: creatinine clearance?

What is the definition or description of: creatinine clearance?

Kidney Function: Creatinine clearance is used in clinical practice to give an estimate of overall kidney function, or glomerular filtration rate. Generally normal is considered 100 or above, but it goes down every year and elderly patients may have low clearance which is not abnormal. ...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