Intra-Aortic Balloon Pump answers
IABP cath insertion can occur in✔✔OR during cardiac surgery
Cardiac cath
bedside (emergencies)
IAB cath is typically inserted in✔✔femoral artery
IAB cath is placed in __ aorta __ below the __ & above the __
branches.✔✔descending thoracic
1-2 cm
L subclavian artery
renal artery
Cath should be visible on Xray b/w✔✔2nd & 3rd intercostal spaces
If balloon is placed too low, it can obstruct✔✔renal arteries
If balloon is placed too high, it can obstruct✔✔L subclavian artery or
L carotid artery
Contrary to all other arteries in body, coronaries are perfused during✔✔diastole
IAB is inflated at onset of✔✔diastole after aortic valve closes
Increase in aortic diastolic pressure perfuses coronaries &✔✔improves myocardial
O2 delivery
IAB deflates at onset of systole decreasing afterload resulting in✔✔decreased LV
workload
decreased myocardial O2 demand
IABP is freq referred to a counter pulsation because✔✔balloon inflates during
diastole & deflates during systole
Timing of IABP is always performed using __ as a guide for balloon
timing.✔✔arterial waveform
Dicrotic notch signals✔✔closure of aortic valve
When IABP console recognizes dicrotic notch, the balloon will✔✔inflate
When IABP console identifies the pts R wave, the balloon will✔✔deflate
IABP therapy indications✔✔angina
MI
cardiogenic shock
IABP cath insertion can occur in✔✔OR during cardiac surgery
Cardiac cath
bedside (emergencies)
IAB cath is typically inserted in✔✔femoral artery
IAB cath is placed in __ aorta __ below the __ & above the __
branches.✔✔descending thoracic
1-2 cm
L subclavian artery
renal artery
Cath should be visible on Xray b/w✔✔2nd & 3rd intercostal spaces
If balloon is placed too low, it can obstruct✔✔renal arteries
If balloon is placed too high, it can obstruct✔✔L subclavian artery or
L carotid artery
Contrary to all other arteries in body, coronaries are perfused during✔✔diastole
IAB is inflated at onset of✔✔diastole after aortic valve closes
Increase in aortic diastolic pressure perfuses coronaries &✔✔improves myocardial
O2 delivery
IAB deflates at onset of systole decreasing afterload resulting in✔✔decreased LV
workload
decreased myocardial O2 demand
IABP is freq referred to a counter pulsation because✔✔balloon inflates during
diastole & deflates during systole
Timing of IABP is always performed using __ as a guide for balloon
timing.✔✔arterial waveform
Dicrotic notch signals✔✔closure of aortic valve
When IABP console recognizes dicrotic notch, the balloon will✔✔inflate
When IABP console identifies the pts R wave, the balloon will✔✔deflate
IABP therapy indications✔✔angina
MI
cardiogenic shock
