The Lab

Rhythms

First-Degree Atrioventricular Block

All sinus impulses conduct with a prolonged PR interval. Marked AV delay may impair filling, especially with a stiff or failing ventricle.

Overview

Open Clinical controls → Baseline vitals → Rhythm and choose First-Degree Atrioventricular Block. The rate and atrial/ventricular timing follow this rhythm’s model.

All sinus impulses conduct with a prolonged PR interval. Marked AV delay may impair filling, especially with a stiff or failing ventricle.

The disease state remains active. Disease morphology, treatment and temporary pacing can modify the displayed result; use the effective rate and the current twelve-lead read.

Step by step

  1. Select the rhythm, then adjust Ventricular rate if required.
  2. Compare Lead II, V1 and the arterial pulse.
  3. Open 12-lead ECG; use Variant or Next variant, then Pause → Interpretation.

References & further reading

Back to libraryBack to top ↑