Cardiac arrest and CPR Flashcards
How long before brain damage occurs due to circulation faliure?
3-4mins
2 Shockable rhythms?
Ventricular fibrillation
Pulseless ventricular tachycardia (HR of several 100 bpm, but the beats are too weak to be felt)
Typical arrhythmia associated with sudden cardiac arrest?
Ventricular fibrillation
2 nonshockable rhythms?
Pulseless electrical activity
Ventricular asystole
After ___ mins of cardiac arrest death will occur.
10 mins
Chest compression rate needs to be at least?
100/min
How deep must we compress the chest?
2 inches
Compression: ventilation ratio?
30:2
Once endotracheal tube is placed, what is the lung inflations rate?
6-8s interval
8-10breaths/min
Cardiac arrest drugs:
Lidocaine, epinephrine, atropine, vasopresssin
Epinephrine dose:
1mg IV or IO (Tibia, distal radius, ulna)
Every 3-5mins
Atropine dose:
0.5-1mg every 3-5mins
Total 3mg
Bradycardia, AV-block
Lidocaine dose:
1-1.5mg/kg every 5-10mins
total 3mg/kg
Amiodarone dose:
150mg over 10min
Atropine only used when?
Bradycardia
Causes of Cardiac arrest:
- Cardiac - MI, cardiomyopathy, CHD, heart valve disease, acute myocarditis
- Non-cardiac - electrocution, drug overdose, hypovolemic shock, airway obstruction, PE, poisoning, ARF
In CPR, CO should be ____ of the normal
1/4 to 1/3
Compressions should depress the sternum ______
2 inches (5cm)
Breaths per min
10-12
Prone CPR location
T7 to inferior scapula + sternal support
1 breath every ________
3 seconds
Biphasic waveforms ____ J
Monophasic waveforms ____ J
120-200 J
360 J
Epinephrine - ____________
Atropine - ________ only
Clinical death
Bradycardia
Administration of drugs via ETT:
Dose should be _______ higher than ___ and should be ___________
2-2.5x
IV
Diluted in 100mL of saline or distilled water
Drugs administered via ETT:
Vasopressine
Atropine
Lidocaine
Epinephrine
