Ventricular Dysrhythmias COPY Flashcards
What is a PVC?
A contraction that comes from the ventricle, it comes earlier than it should
What does the ECG read of a PVC look like?
It does not follow the p wave and the QRS is wide and distorted
What are the causes for PVC’s?
stimulants, ELECTROLYTES, hypoxia, fever, exercise, emotional stress and CVD
How do we treat a PVC?
treat the causemeds: B-blockers, lidocaine or amiodarone
Bigeminy
PVC every second beat
trigeminy
PVC every third beat
quadrigeminy
PVC every 4th beat
multifocal PVC’s
When irritation is coming from more than one point
what constitutes v-tach?
3 or more PVC’s in a row
Why is v-tach so dangerous?
It SERIOUSLY decreases CO
What causes V-tach?
Associated with MI, CAD, significant electrolyte abnormalities, heart failure, drug toxicity and other bad things
What does a v-tach strip look like?
regular beats at 150 to 200 beats per min it is too fast to to refill ventricles. No P wave, PR not measurable
What is implied with no pulse?
no perfusion
What can we do?
anti-dysrhythmic medication like beta blocker, CCB or amiodarone Electrolyte replacement
what is ventricular fibrillation?
Irregular waveforms of varying shapes and sizes. The ventricles are just ‘quivering’No effective contractions = NO CARDIAC OUTPUT
