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126 Creatinine Urine
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
Not much: Urine creatinine is concentrated with dehydration, but is always higher than blood creatinine except in severe kidney desease. The urine creatinine is much higher than blood in a normal state. The importance of urine creatinine is in the calculation of creatinine clearance and fractional excretions. This requires interpretation by your physician.See 1 more doctor answer
No cause for concern: Usually it means you are well-muscled or just big.See 1 more doctor answer
I recently had a creatinine urine 24hr test which came out high (2100 mg/24hr). What does this generally signal?
You're fine: Especially if you're a bit more muscular than today's average guy, or a big guy, or you drank a lot of water that day, or it's actually a few more than 24 hours, or you ate an extra serving of meat, i'd consider this normal. The only value in measuring it is to give other substances "per gram of creatinine".
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.
Concentration: Morning urine is usually more concentrated and all urine contents are at a higher level in the morning urine.
Absolutely nothing: You're probably not a female bodybuilder and you drank a little extra water. I'm glad I could reassure you.
No: There must be a misunderstanding. I'm sorry for the confusion.
Dehydration: It appears that you may have dehyrdated cauisng hypernatremic (hypertonic) dehydration. This occurs when the lost fluid contains less sodium than the blood (loss of hypotonic fluid). Relatively less sodium than water is lost. Please be sure blood glucose, sodium and chloride levels were normal. I would see your doctor and have the urine test repeated along with a urinary sodium level.See 1 more doctor answer
See below: Usually void first discard then save all urine for 24 hours.
Yes: Urine creatinine means nothing in any case. It's secreted at a constant rate in proportion to your muscularity. It's merely a reference value to which you compare other analytes.
For muscularity assessment, does creatinine measurement has to be made always in 24 h collected urine?
Not related: You do not need to measure urine creatinine to assess muscularity.
My Creatinine urine level went from 73 to 20 in 4 mons BP high, 201/112 yesterday. Pluse 136. What can b wrong w/me. No med changes, should I worry?
Yes: You need medical care as soon as possible.
How to keep creatinine levels above 20 mg/dl? I do not use drugs but need a drug urine test 3 times a week. The level of creatinine must be over 20 mg/dl. I changed nothing in my diet and recently had a level of 14.1 and was told I diluted. I am worrie
The: The most common reason for low creatinine is that you drink a lot of fluids. It is not abnormal to have low creatinine, it's just that the people doing the lab test want the urine concentrated enough that it can pick up trace amounts of the drugs they are testing for. Dilute urine= less of drug in urine sample. Some people have a medical condition that makes them unable to concentrate their urine (low levels of adh (vasopressin), (vasopressin) anti-diuretic hormone) release from the pituitary gland. If you don't have this condition, then on test days avoid liquids (sips ok, glasses not ok) until after the urine test. Best results would be to avoid liquids 4 hours before test. If creatinine is still low, you might want to see an endocrinologist to evaluate for low adh (vasopressin). If the doctor can validate this, then your employer can't legally hassle you about your low creatinine.