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.
Storing a stool sample. Stool samples should be handed in as soon as possible, as some can't be analysed if they've been refrigerated â your doctor will tell you if this is the case. If you can't hand the stool sample in immediately, you should store it in a fridge, but for no longer than 24 hours. Place the container in a sealed plastic bag first. Stool samples must be fresh â if they aren't, the bacteria in them can multiply.