what is the difference between intra- and inter-lab variability why is it necessary to send hospital samples how often does inr be tested in hospital if cov is 91%, what will happen what is the difference between inr and cv in blood test? what is coefficient of variation what is the range of hospital and near patient blood test what is the difference between irs and cov what is the range for inr in blood work what is the average variability for inr what is normal cov in inr what is normal range for intra blood work iinn when should you expect a variation of inr how is cov calculated for inr what is the cv of an inr blood test? when i test for blood clotting when cv how many days between lab results for inr test what would be the difference between a near patient or a hospital cov test? what is inr mean what is the difference between an inr and a blood test?