Stimulants including cocaine, meth, and ADHD medications are detectable for about 2 or 3 days. Benzodiazepines and MDMA generally flag a urine test for up to 4 days after last dose. Marijuana stays in the system a bit longer, with amounts being detectable for between 1 and 7 days after last use.
Do not keep it for longer than 24 hours. The bacteria in the urine sample can multiply if it is not kept in a fridge. If this happens, it could affect the test results.
(1) The acceptable temperature range is 32-38 °C/90-100 °F. (2) You must determine the temperature of the specimen by reading the temperature strip attached to the collection container.
DO NOT EAT the following foods for 72 hours prior to and during the collection period: avocados, bananas, butternuts, cantaloupe, dates, eggplant, grapefruit, hickory nuts, honeydew, kiwi fruit, melons, nuts, pecans, pineapple, plantain, plums, tomatoes, walnuts, or substances containing caffeine or nicotine.
Sterile specimen container – use the sterile specimen container that has been provided for you. If one has not been provided, sterilize an ordinary jar and lid, such as a mayonnaise jar. Scrub and rinse them well. Boil in water for ten minutes to sterilize.
Any bacteria or cells present in a urine sample kept at room – temperature for more than one hour will continue to use glucose (sugar) in the urine. This may result in a falsely decreased urine glucose measurement. Also, bacteria produce ammonia which makes the urine more alkaline (increases pH).
Refrigeration can result in the precipitation of urates or phosphates, which may obscure other pathologic constituents in the microscopic examination of the urine sediment. According to NCCLS, If the urine is also to be cultured, it should be refrigerated during transit and held refrigerated until cultured.
The time from urination to temperature measurement may not exceed 4 minutes. If the temperature of a urine specimen is outside the range of 90 °F to 100 °F (32 °C to 38 °C), that is a reason to believe the donor may have altered or substituted the specimen.
If you leave your home or hospital room during your 24 – hour collection period, take the urinal or collection hat and labeled container with you. Store the labeled container at room temperature. You don’t have to refrigerate it.
Usually not. Some courts have found it to be an unfair invasion of privacy to watch employees urinate. However, most courts have held that it is reasonable to enforce other safeguards that protect against tampering with urine specimens.
Quick Fix Synthetic urine, along with its competitors, is made from a mix of water, urea, creatinine, pH balance, and/or uric acid. Synthetic urine can have the same density as urine too, as labs also test for this. Urinalysis clinics use a method called gas chromatography-mass spectrometry to test urine.
The normal range for 24 – hour urine volume is 800 to 2,000 milliliters per day (with a normal fluid intake of about 2 liters per day).
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.
Why might I need a 24 – hour urine collection? 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.