Contents of Urine
Kidney Health Care - David Mangusan Jr., PTRP
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What are the components of urine?
The body takes nutrients from food and uses them to maintain bodily functions including energy and self-repair. Once the body has taken what it needs from the food, waste products are produce. Adults can produce about a quart and a half of urine each day. The amount, however, may depend on many factors including the amount of fluid and food a person consumes and how much fluid is lost through breathing and sweating.
Urine contents:
In addition to water, other contents of urine include:
Urea
Urea is a substance produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body.
Bilirubin
This substance results from the breakdown of hemoglobin—the red pigment found in red blood cells. Bilirubin is modified in the kidneys and becomes a component of urine, which contributes to the yellow color of urine.
Creatinine
Creatinine is formed from the breakdown of creatine phosphate, which is a molecule found in muscle fibers.
Uric acid
Uric acid results from the breakdown of nucleic acids, which can be found in DNA (deoxyribonucleic acid).
Ions
Ions that are secreted in the urine include sodium, chloride, bicarbonate, potassium, and hydrogen ions. Sometimes, these ions will be transported back into the blood depending on the body’s needs.
Related Topic:
Abnormal Contents of Urine
Reference:
National Kidney and Urologic Diseases Information Clearinghouse. Your Urinary System and How It Works. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health. NIH Publication No. 07–3195, August 2007
Tortora, G. and Grabowski, S.: PRINCIPLES OF ANATOMY AND PHYSIOLOGY. 10th ed. John Wiley and Sons, Inc., 2003.
Seeley, R. et al: ESSENTIALS OF ANATOMY AND PHYSIOLOGY. 5th ed. McGraw – Hill, 2005.
Marieb, E.: ESSENTIALS OF ANATOMY AND PHYSIOLOGY.
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The body takes nutrients from food and uses them to maintain bodily functions including energy and self-repair. Once the body has taken what it needs from the food, waste products are produce. Adults can produce about a quart and a half of urine each day. The amount, however, may depend on many factors including the amount of fluid and food a person consumes and how much fluid is lost through breathing and sweating.
Urine contents:
In addition to water, other contents of urine include:
Urea
Urea is a substance produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body.
Bilirubin
This substance results from the breakdown of hemoglobin—the red pigment found in red blood cells. Bilirubin is modified in the kidneys and becomes a component of urine, which contributes to the yellow color of urine.
Creatinine
Creatinine is formed from the breakdown of creatine phosphate, which is a molecule found in muscle fibers.
Uric acid
Uric acid results from the breakdown of nucleic acids, which can be found in DNA (deoxyribonucleic acid).
Ions
Ions that are secreted in the urine include sodium, chloride, bicarbonate, potassium, and hydrogen ions. Sometimes, these ions will be transported back into the blood depending on the body’s needs.
Related Topic:
Abnormal Contents of Urine
Reference:
National Kidney and Urologic Diseases Information Clearinghouse. Your Urinary System and How It Works. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health. NIH Publication No. 07–3195, August 2007
Tortora, G. and Grabowski, S.: PRINCIPLES OF ANATOMY AND PHYSIOLOGY. 10th ed. John Wiley and Sons, Inc., 2003.
Seeley, R. et al: ESSENTIALS OF ANATOMY AND PHYSIOLOGY. 5th ed. McGraw – Hill, 2005.
Marieb, E.: ESSENTIALS OF ANATOMY AND PHYSIOLOGY.
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