Which of the following abnormality is seen in first-degree hea block?
First-degree AV block (PR interval >200 ms) is a slowing of conduction through the AV junction. All p waves will be followed by QRS complexNormal PR interval 120-200msHarrison 19e pg: 1472
PR interval >140ms
PR interval >160ms
PR interval >180ms
PR interval >200ms
C.V.S