A 24-hour urine collection helps diagnose kidney problems. It is often done to see how much creatinine clears through the kidneys. It's also done to measure protein, hormones, minerals, and other chemical compounds.
Normal values are as follows:
Dec 15, 2015
24-Hour Urine Protein Test Results. Normal protein levels in adults are less than 150 mg per day. If you have more than 150 mg over a 24 hour period, your doctor might do further testing. Your test results don't always mean you have a problem though.
On average, a urine test could detect alcohol between 12 to 48 hours after drinking. Some advanced urine tests can detect alcohol even 80 hours after you've had a drink. Alcohol can stay in your hair for a period of up to 90 days. However, hair tests cannot determine a person's blood alcohol content.
Urine values vary considerably during a 24-hour period, and most test methods are based on normal values for first morning samples. The first urine voided in the morning is preferred because it has a more uniform volume and concentration and a lower pH, which helps preserve the formed elements.
Conclusion. Our results suggest that reported consumption of caffeinated coffee is positively associated with 24-h urinary excretion of caffeine, paraxanthine, and theophylline, and may be used as a marker of caffeine intake for epidemiological studies.
For 24 hours prior to collecting the specimen, you should avoid strenuous exercise as well as the following substances and drugs:
The normal range of urine output is 800 to 2,000 milliliters per day if you have a normal fluid intake of about 2 liters per day. However, different laboratories may use slightly different values.
Normal urine output is defined as 1.5 to 2 mL/kg per hour …
Cortisol levels can be affected by certain drugs, stress, infections and injuries as well as certain health conditions. This 24-hour cortisol urine test can help more accurately measure the total level of cortisol over a full day. Test results may take 3-6 business days.
A high level of cortisol in the blood can mean Cushing's syndrome, a disorder that can be caused by overactive adrenal glands, an adrenal gland tumor, some types of cancer, or long-term use of corticosteroids.
The 24-hour urinary cortisol test measures the amount of cortisol being produced within the urine over the course of an entire day. Levels higher than 50-100 micrograms per day in an adult suggest the presence of Cushing's syndrome.
Your test results may not mean you have a problem. Ask your healthcare provider what your test results mean for you. Normal values for cortisol in a urine test are 10 to 55 micrograms per day (mcg/day). If your urine test reveals abnormally high levels of cortisol, you may be diagnosed with Cushing syndrome.
When a technician carries out the cortisol level test between 6 a.m. and 8 a.m., the results will typically be within the range of 10–20 micrograms per deciliter (mcg/dL) in a healthy person. A doctor will generally consider measurements outside of this range to be abnormally low or high.
between 10 and 60 pg/mL
Normal values — Plasma corticotropin (ACTH) concentrations are usually between 10 and 60 pg/mL (2.2 and 13.3 pmol/L) at 8 AM.
Normal ranges for ACTH are fairly broad and like cortisol levels are time-dependent. They also vary from assay to assay. A typical normal range for an 8AM sample using the new assays is 10 to 50 picograms per milliliter (pg/ml); levels are usually less than 20 pg/ml at 4 PM and less than 5-10 pg/ml at midnight.
In Cushing disease, the cortisol levels are high, and the ACTH levels are normal or high.
ACTH level high (values greater than 200 pg/ml) supports primary adrenal insufficiency; low or normal ACTH (normal range: 20-50 pg/ml) with low AM Cortisol – secondary adrenal insufficiency.