Ventricular Rhythms

Question 1

Rhythm: depends on underlying rhythm
Rate: depends on underlying rhythm
P wave: none
PR: has none
QRS: >.12 wide and bizarre

Answer 1

Premature ventricular contraction

Question 2

PVC

Answer 2

Causes: electrolyte imbalance, hypoxia, stimulants, etoh, acid base imbalance, MI, CHF, CAD
s/s: can be none, decreased CO
Tx: treat cause, O2
Is a warning of an underlying cause

Question 3

Rhythm: usually regular
Rate: A- not measurable V- 140+
P wave: none
PR: none
ORS: >.12 wide and bizarre

Answer 3

Ventricular tachycardia

Question 4

V tach

Answer 4

Cause: MI, CAD, CHF, dig tox
S/s: palpitations, sob, chest pain, loc
Tx: cpr (without a pulse), stable antiarrythmics, cardio version

Question 5

V-fib

Answer 5

Causes: MI, hypothermia, acid base imbalances, electrocution
S/s: pulselessness
Tx: defib, cpr, epi, vasopressin

Question 6

V-fib/v-tach

Answer 6

Check a pulse and your patient.
Lead placement can be wrong