CLINICAL MEDICINE

Detailed explanation-1: -A regular rhythm with inverted P waves before each QRS complexes, a ventricular rate of 70 beats/min, narrow QRS complexes, and a PR interval of 0.16 seconds should be interpreted as a(n): accelerated junctional rhythm.

Detailed explanation-2: -Since the depolarization is occurring in the opposite direction, the P wave deflection is inverted. 3. There are inverted P waves after the QRS complex. This is because of retrograde flow to the atria after ventricular contraction.

Detailed explanation-3: -Your EKG shows a series of lines with curves and waves that indicate how your heart is beating. If you have a junctional rhythm, a small wave called a “P wave” is either inverted (upside down) or missing on your EKG. An EKG can often diagnose a junctional rhythm.

Detailed explanation-4: -Junctional rhythm is a regular narrow QRS complex rhythm unless bundle branch block (BBB) is present. P waves may be absent, or retrograde P waves (inverted in leads II, III, and aVF) either precede the QRS with a PR of less than 0.12 seconds or follow the QRS complex. The junctional rate is usually 40 to 60 bpm.