I want to check CRP levels of stored serum samples. I want to know whether it is possible or whether we need fresh samples
CRP half life is 19 days, i.e. stable for more than 2 weeks.
CRP specimens are stable for 2 weeks at 4C, for longer time they shuold be freezed at -20C, but false results are possible.
It depends on the period of storage. The CRP half life is 19 days but under the temperature of 4oC. My suggestion is this; if can lay your hands a fresh serum, please use that for accurate result.
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