how long can you keep urine sample frozen
Expert: Dr.tiwari replied 5 years ago. A frozen urine sample can be kept for testing for upto the 7-10 days without loosing the integrity of the sample.If it is then taken up to the body temperature naturally then drug testing can be done on that.Hope this will help you.ello, Yes,Urine samples can be frozen to be tested later on-. http://www.clinchem.org/cgi/content/full/53/1/153. Hope this will help you. Ask Your Own Medical Question. Customer: replied 5 years ago.