Adrenaline Flashcards
Adrenaline - Type
Naturally occurring catecholamine
Adrenaline - Presentation
1: 10,000 - 1mg in 10 ml
1: 1,000 - 1mg in 1ml
Adrenaline - Actions
- a effect - peripheral vasoconstriction
- b1 effects - increased rate sinus node
- increased myocardial contractility
- increased AV conduction
- increased myocardial irritability - b2 effects - bronchodilation
- vasodilation of skeletal muscle
Onset IV 30 sec IM 30-90 sec
Max effect IV 3-5 min IM 4-10 min
Adrenaline - Uses (7)
- VF/VT - no output
- Asystole
- PEA
- Anaphylaxis
- Severe life threatening asthma
- Bradyarrhythmias resistant to atropine
- Severe upper airway obstruction due to swelling
Adrenaline - Adverse effects (3)
- Tachycardia
- Tachyarrhythmias
- Hypertension
Adrenaline - Contraindication
Known hypersensitivity
Adrenaline - Precautions (3)
Only apply to pts with cardiac output
- Care in pts with PHx of HT
- Care in pts with PHx of IHD
- Give extremely slowly to pts on MAOI antidepressants, as adrenaline may provoke a greatly exaggerated response. Generally they should receive no more than ¼ of the normal dose of adrenaline, titrated to response.
Adrenaline - Doses
Cardiac arrest:
Adult - 1mg IV/IO fast. No max
Paediatric - 0.01mg/kg IV/IO fast. No max
- 0.02mg/kg ETT NEWBORN ONLY
Anaphylaxis/severe life threatening asthma
Adult - 0.5mg IM. Repeat x 1 as req
- infusion 1mg in 500ml NS (2mcg/ml) titrated
Paediatric - 0.01mg/kg IM to max 50kg. Repeat x 1 as req
- infusion 1mg in 500ml NS (2mcg/ml) titrated
Bradyarrhythmias resistant to atropine
Adult & Paediatric - IV adrenaline by infusion titrated
ALWAYS USE BURETTE FOR INFUSIONS
Severe upper airway swelling
Weight >10kg - neb 5ml 1:1000
Weight <10kg - neb 0.5ml/kg 1:1000, dilute to 5ml with NS