Cardiac Arrest Flashcards
most common cause of natural sudden death?
IHD
clinical death is reversible/irreversible
reversible
what does duration of clinical death depend on?
length of time of the cerebral cortex survives in the absence of circulation and respiration
when would you do CPR if someone was breathing
if its agonal breathing
number for cardiac arrest team?
2222
depth for compressions?
5-6cm
how many compressions per sec?
2
2 ventilation breaths in _secs
10
polymorphic VT is another name for…
torsades de pointes
describe monomorphic VT on ECG
broad complex rhythm
rapid rate
constant QRS
torsades de pointes on ECG…
think arctic monkeys AM album
when should you give IV treatment during CPR?
after delivery of 3rd shock
during CPR!!
why cant you see atrial repolarisation on ECG?
masked by QRS
what IV treatment should be given?
adrenaline 1mg IV
amiodarone 300mg IV
how long is the PR interval
0-0.2secs
HR on ECG?
number
1 big box is equivalent to __secs on ECG
0.2
how to work out HR on ECG
300/number of large squares between QRS complexes
if giving adrenaline IV doesnt work, what should you give next?
adrenaline IV every 3-5 mins
what shockable condition should not get amiodarone?
torsades de pointes
who gets 1st degree heart block?
athletes
those on medication
rhythm of 1st degree heart block?
regularly irregular
decribe mobitz type 1 2nd degree heart block
prolonging PR interval, drop a QRS
PR interval should last for how many large squares?
1
1st degree heart block ECG sign?
prolonged PR interval THATS ALL
describe mobitz type 2
same PR interval, some P waves not conducted
describe complete heart block
no association between p waves and QRS
Tx complete heart block
pacemaker
lateral leads of ECG?
2, avL, V5, V6
inferior leads for ECG?
2, 3, AVF
septal leads for ECG?
V1, V2
anterior leads for ECG?
V3, V4
an MI in what area of the heart tends to progress to heart block
inferior
artery assoc with lateral heart?
left coronary
diagonal
artery assoc with anterior and septal heart?
LAD
artery assoc with inferior heart?
RCA
