Question

The four measurements of QRS and a fifth measurement called ________ based on height, duration and offset to those of the patient’s normal QRS are compared.

(a) QRS polarity

(b) R-to-R interval

(c) Wiggle

(d) Distance D

Answer 1

Right option is (d) Distance D

Best explanation: The four measurements of QRS and a fifth measurement called ‘distance D’ based on height, duration and offset to those of the patient’s normal QRS are compared. Beats are classified on the basis of their deviation from the normal and maybe definitely normal, probably normal, probably PVC or definitely PVC.