Question

7.9 Regularity: Rate: P Waves: PRI: QRS: Interp: 7.10 Regularity: Rate: P Waves: PRI: QRS: Interp:

Answer 1

Q7.9

Premature ventricular contraction (PVC)

Regularity-Irregular

Rate-Usually normal

Rhythm-Usually irregular

P Wave - Absent

PR- Not Measurable

QRS- It looks varies wide and bizarre (>0.12second)occur earlier.

Interp- A PVC is not a rhythm but an ectopic beats that arises from an irritable site in the ventricles.

Q7.10

Sinus Bradycardia

Regularity- Regular

Rate-less than 60 beats per minute

Rhythm- Atrial and Ventricular rhythm is regular

P Waves- it is upright and uniform

PR- 0.12 - 0.20 seconds ( 3-5 small squares)

QRS- 0.06 to 0.12 seconds (11/2 to 3 small squares)