NUR 267 Exam 5 With
Complete Solution
External Pacemaker - ANSWER Used in emergency situations when pacing
must be instituted rapidly. Systems use adhesive pads, placed on the anterior
and posterior walls of chest over heart. External power source delivers
electrical current through chest wall to heart.
External Pacemaker other name - ANSWER transcutaneous
Temporary Epicardial Pacemaker - ANSWER Used during and after heart
surgery, generator outside of body
Endocardial Pacemaker - ANSWER -pacing wires are threaded through a large
central vein and lodged into the right ventricle (ventricular pacing), right
atrium (atrial pacing), or both chambers (dual chamber pacing). For drug
induced bradycardia, bridge to permanent
Endocardial Pacemaker other name - ANSWER transvenous
Permanent Pacemaker - ANSWER -implanted totally within the body, used
, for symptomatic bradycardia, third-degree heart block
premature ventricular contraction (PVC) - ANSWER a ventricular contraction
preceding the normal impulse initiated by the SA node (pacemaker), QRS
premature, wide, and bizarre
Ventricular tachycardia (V-tach) - ANSWER A life-threatening heart rhythm in
which there is very rapid contraction of the ventricles, and the heart does not
pump blood at all, No P or T waves, QRS wide and bizarre
Ventricular fibrillation (V-fib) - ANSWER A life-threatening heart rhythm in
which the heart is in a state of totally disorganized electrical activity, and
does not pump blood effectively, No P or T waves, QRS wide and bizarre
Third degree AV block - ANSWER The atria and Ventricles are totally
dissociated.
-So, the QRSs and the P waves have no relation to each other.
Shockable Rhythms (3) - ANSWER Vfib, Vtach w/o pulse, polymorphic Vtach
w/ pulse
Biphasic defibrillation Joules - ANSWER 120-200 Joules
Complete Solution
External Pacemaker - ANSWER Used in emergency situations when pacing
must be instituted rapidly. Systems use adhesive pads, placed on the anterior
and posterior walls of chest over heart. External power source delivers
electrical current through chest wall to heart.
External Pacemaker other name - ANSWER transcutaneous
Temporary Epicardial Pacemaker - ANSWER Used during and after heart
surgery, generator outside of body
Endocardial Pacemaker - ANSWER -pacing wires are threaded through a large
central vein and lodged into the right ventricle (ventricular pacing), right
atrium (atrial pacing), or both chambers (dual chamber pacing). For drug
induced bradycardia, bridge to permanent
Endocardial Pacemaker other name - ANSWER transvenous
Permanent Pacemaker - ANSWER -implanted totally within the body, used
, for symptomatic bradycardia, third-degree heart block
premature ventricular contraction (PVC) - ANSWER a ventricular contraction
preceding the normal impulse initiated by the SA node (pacemaker), QRS
premature, wide, and bizarre
Ventricular tachycardia (V-tach) - ANSWER A life-threatening heart rhythm in
which there is very rapid contraction of the ventricles, and the heart does not
pump blood at all, No P or T waves, QRS wide and bizarre
Ventricular fibrillation (V-fib) - ANSWER A life-threatening heart rhythm in
which the heart is in a state of totally disorganized electrical activity, and
does not pump blood effectively, No P or T waves, QRS wide and bizarre
Third degree AV block - ANSWER The atria and Ventricles are totally
dissociated.
-So, the QRSs and the P waves have no relation to each other.
Shockable Rhythms (3) - ANSWER Vfib, Vtach w/o pulse, polymorphic Vtach
w/ pulse
Biphasic defibrillation Joules - ANSWER 120-200 Joules
