acute bradycardia Flashcards
1
Q
Hr of
A
< 60
2
Q
causes
A
AV nodal disease
beta blockers, CCB
electrolyte abnormalities
hypothyroidism
3
Q
initial Mx
A
atropine 500mcg IV
repeat boluses can be given up to 3mg
transcutaneous pacing
4
Q
how does atropine work
A
blocks vagus n activity on heart, which increases firing rate SA node
5
Q
factors increasing risk asystole
A
Mobitz TII
complete HB + broad QRS
recent asystole
ventricular pause >3s
