Can a period affect a urine drug test?
Menstrual blood can contaminate a urine sample. Vitamin C supplements, food coloring in candy, and the natural color in beets can affect the color of your urine. Medicines can also affect your results: Anthraquinone laxatives.
Does being on your period affect urine sample?
If you're menstruating (on your period), it's important to let your provider know before collecting your urine sample. Menstrual blood, as well as vaginal discharge, can interfere with certain urinalysis test results.
What should you not do before a urine test?
- Avoid alcohol, coffee, tea, tobacco and strenuous exercise for 24 hours prior to collection and up to collection time. - Do not consume avocados, bananas, eggplant, pineapples, plums, tomatoes or walnuts for 48 hours before the test.
When is the best time to do a urine sample?
You can collect a urine sample at any time of day, unless your GP or practice nurse advises you otherwise. The types of urine sample you might be asked for include a random specimen, first morning specimen or timed collection.
When can I get a urinalysis after a period?
Avoidance of examination during menstrual bleeding and 2 days before and 2 days after menstruation. In the case of sampling during menstruation, the urine is often contaminated with a large amount of red blood cells and epithelia which makes it impossible to obtain reliable results.
Can menstruation affect protein in urine?
Whereas some studies have indicated that contamination of urine sample with menstrual blood may give inaccurate results, in a large United States National Health and Nutritional Survey that involved 3,784 women aged 20-60 years with 290 (7.7%) having menses when blood was collected; urine protein measurement was not ...
Can you do a 24 hour urine test while on your period?
If you are menstruating, do not begin collecting your urine until after you have stopped menstruating. 3. If you are collecting your urine for a Creatinine Clearance test, a blood sample will be drawn when you drop off your sample.
Can menstruation cause leukocytes in urine?
In a normal urinalysis it is common for there to be 0 to 5 leukocytes per field. There may be higher amounts in women depending to their age and menstrual cycle. When there are more than 5 leukocytes per field, the sample is identified as "pyuria", which describes that there are high levels of leukocytes in the urine.