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Urea Nitrogen 24H W/O CRE: A Comprehensive Guide for Patients
Introduction
The Urea Nitrogen 24H W/O CRE test is a urine test that measures the amount of urea nitrogen in your urine over a 24-hour period. Urea nitrogen is a waste product that is produced by the breakdown of proteins in your body. The level of urea nitrogen in your urine can help your healthcare provider assess your kidney and liver function.
Name Synonyms:
* Urea nitrogen, urine 24 hour, no creatinine
* Urea nitrogen, 24 hour urine collection
* 24 hour urea nitrogen
* 24 hour urine urea measurement
* 24 hour quantitative urea measurement
Test Overview
The Urea Nitrogen 24H W/O CRE test involves collecting all of your urine over a 24-hour period. This is most easily done by starting the collection after you urinate to empty your bladder. You will need to collect the urine continuously for the next 24 hours. Avoid any significant exercise or sweating during the collection period.
Conditions and Diseases Detected
The Urea Nitrogen 24H W/O CRE test can be used to detect a variety of conditions and diseases, including:
* **Kidney failure:** When your kidneys are not functioning properly, they may not be able to filter urea nitrogen from your blood. This can lead to a buildup of urea nitrogen in your urine.
* **Liver failure:** The liver is responsible for converting urea into ammonia. If your liver is not functioning properly, it may not be able to convert urea into ammonia. This can lead to a buildup of urea nitrogen in your urine.
* **Dehydration:** Dehydration can also lead to a buildup of urea nitrogen in your urine. When you are dehydrated, your body produces less urine. This can lead to a concentration of urea nitrogen in your urine.
Symptoms
The symptoms of kidney or liver failure can include:
* Fatigue
* Weakness
* Nausea
* Vomiting
* Decreased urine output
Preparation Guidelines
To prepare for the Urea Nitrogen 24H W/O CRE test, you will need to collect all of your urine over a 24-hour period. You will need to begin the collection after you urinate to empty your bladder. You will need to collect all of your urine for the next 24 hours, including the urine that you produce overnight.
Procedure
The procedure for the Urea Nitrogen 24H W/O CRE test is simple and non-invasive. You will be given a special container to collect your urine in. You will need to collect all of your urine for the next 24 hours.
Duration and Waiting Time
The Urea Nitrogen 24H W/O CRE test typically takes about 24 hours to complete. You will need to collect all of your urine for the next 24 hours. The results of the test will typically be available within a few days.
Additional Tests
Your healthcare provider may order additional tests to confirm a diagnosis of kidney or liver failure. These tests may include:
* Blood urea nitrogen (BUN) test
* Serum creatinine test
* Liver function tests
Conclusion
The Urea Nitrogen 24H W/O CRE test is a valuable tool for assessing kidney and liver function. The test can help to diagnose a variety of conditions and diseases. If you are experiencing any of the symptoms of kidney or liver failure, your healthcare provider may order a Urea Nitrogen 24H W/O CRE test.
Talk to your healthcare provider to learn more about the Urea Nitrogen 24H W/O CRE test and whether it is right for you.
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