CPR Flashcards
indications for CPR
cardiopulmonary arrest
respiratory arrest - if treated quickly may prevent cardiac arrest
how can respiratory arrest be treated
Intubate and ventilate
Acupuncture point GV26 – use a 25 g. needle
NO DOXAPRAM – increases cerebral O2 demand
underlying cause of cardiac arrest
inadequate cardiac oxygenation
what is the goal of CPR
maximize myocardial and cerebral oxygenation
T/F CPR success rates are poor overall in dogs and cats
True
35-45% have a return to spontaneous circulation (ROSC)
survival to discharge is only 2-10% → majority arrest again
CPA had a better/worse prognosis
better
50% survival at discharge
considerations for providing CPR
Owners will require counselling to aid in decision-making
Is this a rapidly correctable problem?
What is the longer-term prognosis?
What is the expected cost?
code status
DNR
CPR - open vs. closed
ask BEFORE patient is admitted
how can you indicate the crash cart is ready for use
put tape over the front - if broken, its been used and should be stocked
what is the most important part of basic life support
chest compressions
an apneic, unresponsive patient should be assessed for less than _______ before startin compressions
5-10 secs
interruptions should be minimized - can have significant impact on blood flow
chest compressions only achieve _________of normal cardiac output
less than/equal to 25-30%
how often should you trade off person doing compressions
every 2 min
trade off without interruption
2 theories of chest compressions
cardiac pump theory - direct compression of ventricles, smaller patients
thoracic pump theory - increase intrathoracic pressure, larger patients
what determines where to do chest compressions
size and shape of patient
where are compressions performed with thoracic pump theory
over the widest part of the chest
rate and deptht of chest compressions
100-120 per min
1/3 -1/2 width of thorax - allow full thoracic recoil
indications for inernal cardiac massage
Conditions which prevent effective external cardiac compressions - Pericardial effusion, Pleural space disease
Other - Intraoperative cardiac arrest if abdomen is already open (diaphragmatic approach)
T/F intubation should be completed ASAP but without interruption of chest compressions
True
keep in lateral recombency
ventilation parameters
10 breaths/min
tidal volume 10 ml/kg
inspiratory time 1 second
what provides an indication of adequacy of cardiac compressions
EtCO2
should be >15-20 mmHg
sudden increase in EtCO2 indicates
ROSC - return to spontaneous circulation
draumatic increase in cardiac output and pulmonary circulation
what is an impedance threshold device (ITD)
fits between endo of ETT and ambubag/breathing circuit
created negative intrathroacic pressure→increases venous return (preload)
only useful in animals >10kgs



