Epinepherine Flashcards
CLASSIFICATION
SYMPATHOMIMETIC, SYMPATHETIC AGONIST, CATECHOLAMINE
BRAND NAME
ADRENALIN, EPI-PEN, EPI-PEN JR
MECHANISM OF ACTION
- ALPHA1 AGONIST -> PERIPHERAL VASOCONSTRICTION, INC. SVR AND BP
- BETA1 AGONIST -> POS. INOTROPY, CHRONOTROPY, DROMOTROPY
- BETA2 AGONIST -> BRONCHODILATION
- BLOCKS DESTRUCTION OF MAST CELLS (WHICH RELEASE HISTAMINE) IN ANAPHYLAXIS
PHARMACOKINETICS
ONSET: < 2min IV, 3- 10min IM
PEAK: < 5min IV, 20min IM
DURATION: 5 - 10min IV, 20 - 30min IM
1/2 LIFE: 5min IV
INDICATIONS
- CARDIAC ARREST
- ANAPHYLAXIS / SEV. REACTIVE AIRWAY DISEASE / ASTHMA
- SYMPTOMATIC BRADYCARDIA / HYPOTENSION
CONTRAINDICATIONS
- HTN
- TACHY - DYSRHYTHMIAS
- USE CAUTION WITH PREGNANCY AND CAD
SIDE EFFECTS
ANXIETY, HA, DYSRHYTHMIAS, DIZZINESS, N + V
* LEADS TO INC. MYOCARDIAL OXYGEN DEMAND
DOSEAGE
CARDIAC ARREST
(adult) 0.5 - 1.0mg IV, IO [1:10,000] q 3 - 5min
(pedi) 0.01mg/kg IV, IO [1:10,000] q 3 - 5min
BRADYCARDIA / HYPOTENSION
(adult) 2 - 10 micrograms / min
ANAPHYLAXIS / ASTHMA
(adult) 0.3 - 0.5mg IM, SC [1:1000] -> 0.1mg [1:10,000] slow IV over 3min
(pedi) 0.01mg/kg IM, SC [1:1000] -> 0.01mg/kg [1:10,000] slow IV over 3min (max dose = 0.3mg)
PRECAUTIONS
SHOULD BE PROTECTED FROM LIGHT
DRUG 2 DRUG INTERACTIONS
pH DEPENDENT, DEACTIVATED BY ALKALINE SOLUTIONS; EFFECTS INTERFERED WITH PT’S TAKING ANTIDEPRESSANTS, REACTS WITH CaCl2 & NaCO3 to PPT IN IV TUBING