An example of these patterns is illustrated in Figure 2 over the page. Further elucidation of the specificity of the antibody is done by ENA and dsDNA testing. These are useful in confirming the significance of a positive ANA and will help to lead to a diagnosis of the type of autoimmune disease. Extractable Nuclear Antigens (ENAs) Detecting antibodies to ENAs involves testing patientâs serum for antibodies against various specific components of the cell nucleus.
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.
To find out at what temperature urine freezes, I went to the internet. There I found a couple different answers: -5Â°C (Itâs about 2/3 of the way down that page) and -120Â°C.Iâm pretty sure the -120Â°C is wrong.I did found actual science dealing with freezing urine, but most of the sites I found dealt with freezing âcleanâ urine so people could use it to pass drug tests.ecently, I was revising a section of a novel Iâm working on. Itâs set a few centuries after a nuclear war. All the ash and smoke has blocked the sun, leaving the Earth frozen in a nuclear winter.