Defibrillation.

Question 1

defibrillation:

Answer 1

process by which current is passed through the heart to depolarize the cells and allow them to depolarize uniformly in an organized, coordinated contraction.

Question 2

each minute we don’t defibrillate..

Answer 2

the chance of success decreases 7-10%.

Question 3

defibrillate during exhalation because..

Answer 3

the lungs are deflated and it’s closer from the chest to the heart.

Question 4

monophasic defibrillators

Answer 4

current from paddles through the patient; 1st shock is 200, 2nd is 200-300, 3rd is 360. never more than 360.

Question 5

biphasic defibrillators

Answer 5

current from padres to patient back through the paddles; 150 at all times.

Question 6

A/P defibrillation

Answer 6

under left clavicle and under left scapula.

Question 7

cardioversion

Answer 7

should be timed so it’s on the QRS not the T; uses lower current; used if patient has a pulse and is stable.

Question 8

therapy of choice for hemodynamically stable tachycardias

Answer 8

cardioversion.

Question 9

pericardial thump

Answer 9

fist to chest; used when witnessed cardiac arrest and defibrillator isn’t available.