CRP and pericarditis: D-D elevation was found in a significant proportion (50.6 to 73.3%) of patients diagnosed with acute pericarditis [12, 72]; increased values correlated with fever [72], higher CRP concentration [12, 72, 73], neutrophilic leukocytosis [72], lower haematocrit, higher platelet count [12, 74] and hospitalization [12].