Flashcards in 1. Advanced Life Support Deck (20):
What are the 2 shockable rhythms?
VT and VF
What are the 2 non-shockable rhythms?
Non-shockable asystole and PEA/EMD (pulseless electrical activity)
What are the 4 Ts?
1. Tamponade: pericardial
2. Tension pneumothorax
3. Toxins, poisons, drugs
4. Thrombosis: pulmonary or coronary
What are the 4 Hs?
3. Hypo or hyperthermia
4. Hypo or hyperkalaemia
Causes peripheral vasoconstriction and thought to facilitate defibrillation by improving blood flow
Blockage of potassium channels and increased conduction , prolonged refractory period
Parasympathetic antagonist: blocks action of vagus nerve
Action: sodium bicarbonate
Systemic alkalising agent: increases plasma bicarb and buffers excess H+
Immediately - non shockable rhythm VF
VF/VT - after 2nd shock
VF/pulseless VT when defib and adrenaline has failed. Increases vasodilation and decreased HR and contractilitiy
No longer recommended systole or cardiac arrest
Indications: Sodium bicarbonate
Severe metabolic acidosis, hyperkalaemia
Adverse effects: adrenaline
Adverse effects: amioderone
Hypotension, bradycardia, heart block
Adverse effects: atropine
Adverse effects: sodium bicarbonate
1mg IVI (1;1000)
300mg after 3rd shock
500 - 600mcg every 3-5 min (up to 3mg)