Cardiopulmonary Resuscitation Flashcards
What is the underlying cause of cardiac arrest?
Inadequate cardiac oxygenation
What are some different mechanisms of cardiac arrest?
Arrhythmia, pulmonary/airway dysfuntion, anesthesia, electrolyte abnormalities, severe trauma, intracranial dz, sepsis, multiple organ dysfunction
What is the goal of CPR?
To maximize myocardial and cerebral oxygenation
Why do you have a better success rate of bringing a patient back with CPR when under anesthesia?
Because patient is actively hooked up to monitors, they are already intubated and they already have a catheter in.
What type of communication is important in successful CPR?
Closed loop communication
How long is one CPR cycle?
1 cycle=2 minutes
How many compressions/minute should be done and to what depth?
100-120/min at 1/3-1/2 chest width
How many breaths per minute is important in adequate ventilation?
10/min
If your patient is is Vfib-how would you respond?
Continue giving CPR, charge defibrillator, give 1 shock, resume CPR immediately for 1 cycle before checking ECG
If your patient was in asystole/PEA how would you respond?
Resume CPR for 1 cycle, low dose epi/vasopressin every 5 minutes, consider atropine if increased vagal tone
What is the most important part of BLS?
Chest compressions
What % of cardiac output will you achieve during CPR?
25-30%
What is the difference of the cardiac and thoracic pump theory?
Cardiac pump theory: direct compression of the ventricles (small patients)
Thoracic pump theory: Compressions cause increase in intrathoracic pressure (larger patients)
Why is it important that you make sure your hands come off the chest for a split second during CPR?
To allow for full thoracic recoil of the ventricles
T/F: Internal cardiac massage is indicated when there is pericardial effusion/pleural space disease present?
TRUE
