Ventricular Dysrhythmias

PREMATURE VENTRICULAR CONTRACTIONS (PVCs) PVCs are due to impulses originating from single or multiple areas in the ventricles. The ECG characteristics of PVCs are as follows:

1. There is a premature and wide QRS complex.

2. There is no preceding P wave.

3. The ST segment and T wave of the PVC are directed opposite the major QRS deflection.

4. Most PVCs do not affect the sinus node, so there is usually a fully compensatory postectopic pause or the PVC may be interpolated between two sinus beats.

5. Many PVCs have a fixed coupling interval (within 0.04 s) from the preceding sinus beat.

6. Some PVCs are conducted into the atria, producing a retrograde P wave (Fig 24:16).

Cure Your Yeast Infection For Good

Cure Your Yeast Infection For Good

The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.

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