Fig. 5.

a Comparison of measured CK-MB activity with calculated CK-MB activity from densitometer scan in 31 patients, from group 3, with anomalous CK-MB values. The upper limit of the reference range for each CK-MB activity assay is 24 U/L. Pearson correlation R² = 0.006, indicating no significant correlation between the two estimates. Two points, from male patients are not shown on the graphical scale: (measured, calculated CK-MB activity); (243,308) and (475,120). b Relationship CK-MB activity assay and CK-MB mass assay in 30 other patients with anomalous CK-MB values. Pearson correlation R² = 0.004 indicating no significant correlation between the two estimates. CK-MB mass assay: Female upper limit of reference range (ULRF) 3.8 pg/ml, males 6.7 pg/ml. CK MB activity ULRF 24 U/L. Values from 2 male patients are not shown on the graph (CK-MB mass, CK-MB activity); (3.88, 915) and (31.6, 81)