Cardiac arrest and CPR

Question 1

How long before brain damage occurs due to circulation faliure?

Answer 1

3-4mins

Question 2

2 Shockable rhythms?

Answer 2

Ventricular fibrillation
Pulseless ventricular tachycardia (HR of several 100 bpm, but the beats are too weak to be felt)

Question 3

Typical arrhythmia associated with sudden cardiac arrest?

Answer 3

Ventricular fibrillation

Question 4

2 nonshockable rhythms?

Answer 4

Pulseless electrical activity
Ventricular asystole

Question 5

After ___ mins of cardiac arrest death will occur.

Answer 5

10 mins

Question 6

Chest compression rate needs to be at least?

Answer 6

100/min

Question 7

How deep must we compress the chest?

Answer 7

2 inches

Question 8

Compression: ventilation ratio?

Answer 8

30:2

Question 9

Once endotracheal tube is placed, what is the lung inflations rate?

Answer 9

6-8s interval
8-10breaths/min

Question 10

Cardiac arrest drugs:

Answer 10

Lidocaine, epinephrine, atropine, vasopresssin

Question 11

Epinephrine dose:

Answer 11

1mg IV or IO (Tibia, distal radius, ulna)
Every 3-5mins

Question 12

Atropine dose:

Answer 12

0.5-1mg every 3-5mins
Total 3mg
Bradycardia, AV-block

Question 13

Lidocaine dose:

Answer 13

1-1.5mg/kg every 5-10mins
total 3mg/kg

Question 14

Amiodarone dose:

Answer 14

150mg over 10min

Question 15

Atropine only used when?

Answer 15

Bradycardia

Question 16

Causes of Cardiac arrest:

Answer 16

• Cardiac - MI, cardiomyopathy, CHD, heart valve disease, acute myocarditis
• Non-cardiac - electrocution, drug overdose, hypovolemic shock, airway obstruction, PE, poisoning, ARF

Question 17

In CPR, CO should be ____ of the normal

Answer 17

1/4 to 1/3

Question 18

Compressions should depress the sternum ______

Answer 18

2 inches (5cm)

Question 19

Breaths per min

Answer 19

10-12

Question 20

Prone CPR location

Answer 20

T7 to inferior scapula + sternal support

Question 21

1 breath every ________

Answer 21

3 seconds

Question 22

Biphasic waveforms ____ J
Monophasic waveforms ____ J

Answer 22

120-200 J
360 J

Question 23

Epinephrine - ____________
Atropine - ________ only

Answer 23

Clinical death
Bradycardia

Question 24

Administration of drugs via ETT:
Dose should be _______ higher than ___ and should be ___________

Answer 24

2-2.5x
IV
Diluted in 100mL of saline or distilled water

Question 25

Drugs administered via ETT:

Answer 25

Vasopressine
Atropine
Lidocaine
Epinephrine