A high haemoglobin level is even more essential if intercurrent vascular disease exists because polycythaemia vera is definitely a risk aspect for both arterial and venous thrombosis.. A revised guide to the analysis of polycythaemia The diagnosis of polycythaemia has been improved by the discovery of a gene mutation that 95 percent of affected patients possess. Polycythaemia vera can be a myeloproliferative disorder that should be distinguished from other causes of an increased haemoglobin level. The diagnosis of polycythaemia vera offers been simplified with the getting of a gene mutation present in 95 percent of patients with this condition.A 2013 study from the National Community Pharmacists Association exposed that the most frequent forms of medicine nonadherence included failing to refill a fresh prescription and going for a lower dose than instructed . Meanwhile, some of the most common known reasons for nonadherence had been forgetting to consider the medication and believing that the medication was not needed anymore . Contrary to patients’ popular belief, the absence of obvious symptoms will not indicate that the bacterias or virus that caused the illness in the first place has been completely eliminated.