Cardiac Arrest

Question 1

Defib settings

Answer 1

Zoll: 120J, 150J, 200J

Lifepack: 200J, 300J, 360J

Question 2

What will ETC02 tell you in a cardiac arrest

Answer 2

• Higher ETC02: higher cardiac output (good CPR)
  -Lower etco2: change compressors or improve CPR quality
• etco2 decreasing: observe for chest compressor fatigue, hyperventilation, airway obstruction, or tracheal tube displacement.
• etco2 increasing: CPR is likely effective and ventilation appropriate; substantial rise can indicate ROSC.

Question 3

What does ETC02 mean at the 20 min mark of CPR

Answer 3

etco2 levels < 10 mm Hg associated with futility (exceptions include hypothermia)
etco2 levels > 25 mm Hg associated with survival

Question 4

Signs of a ROSC

Answer 4

SIGNS OF ROSC:
- Sudden increase in ETCO2
- Spontaneous respirations
- Palpable pulses
- Change in colour
- Spontaneous movement

Question 5

Medical TOR conditions

Answer 5

Medical TOR Criteria as per ALS PCS:
Age ≥16 years old
Altered LOA
Arrest not witnessed by EMS AND No ROSC 20 minutes of resuscitation AND no defibrillation delivered

Question 6

Medical TOR contraindications

Answer 6

• known reversible cause of the arrest unable to be addressed
• pregnancy presumably over 20 weeks gestation
• suspected hypothermia
• airway obstruction
• non-opioid drug overdose/toxicology