Emergency Med Review ADENOSINE (Adenocard) Slows AV conduction Given for supraventricular tachycardia (SVT) Contraindications: A-Fib, A-Flutter, VT, 2nd or 3rd degree block may cause brochospasm in asthma patients. DOSE: 6mg rapid IV bolus given in 1-2 seconds, Repeat with 12 mg IV push if PSVT not eliminated. DILTIAZEM (Cardizem) Calcium channel blocker For PSVT with or with out WPW, A-Fib, A-Flutter Not for AV blocks unless pt has a pacemaker May cause decreased BP, caution with renal pts DOSE: 20mg IV, cont. infusion 5-15mg/hr DOUBUTAMINE (Dobutrex) Positive inotrope with vasodilatation effect For depressed myocardial contractility Not for idiopathic hypertrophic sub-aortic stenosis DOSE: 2.5-20mcg/kg/min IV AMIODARONE (Cordarone) Increase VF threshold, prolongs repolarization and refractory period. Given for V-Fib, V-Tach, stable wide complex. Tachycardia Contraindicated with heart block, severe bradycardia, DOPAMINE (Intropin) decreased K Action dose related Don’t use with heparin, HCO3 and be cautious when using o Low dose: inotropic support and renal perfusion Beta blockers, Ca+ channel blockers increased. DOSE: During arrest = 150mg IV push in 3-5 min with stable Vo Med dose: Increase contraction, HR, CO, BP Tach with pulse = longer infusing same dose o High dose: Increase BP and CO For hemodynamic imbalances in shock syndrome. AINONE (Incor) Monitor BP, I&O, peripleural pulse Positive inotropic and potent vasodilator DOSE: 2-5mcg/kg/min IV For CHF Monitor hemodynamics, I?O and electrolytes DROTRECOGIN ALFA (Xigris) inflammation, coagulation ATROPINE For severe Sepsis Enhances AV conduction (increase HR) Not for internal bleeding, stroke, head injury For symptomatic bradycardia May cause bleeding May extend ischemia into MI DOSE: Bradycardia=0.5mg up to 3mg IV, ET ENOXAPARIN (Lovenox) Inhibits thrombos formation CALC IUM CHLORIDE FOR: preventing ischemic complications of unstable Angina Electrolyte and Non-Q wave MI For hyperkalemia, calcium channel blocker overdose NOT FOR: severe thrombocytopenia, bleeding. Watch for Contraindicated for pts with increased Ca+, risk of digitalis increased bleeding if used with camomile, garlic, gingko, toxicity ginsing, or penicllins. Not for IM use. IV use only use 5-10mg IV of 10% solution for increased K and 1-4g administered slowly for Ca+ blocker OD EPINEPHRINE (Racemic 2.25%) DEXTROSE Bronchodilation, vasoconstriction Elevates serum glucose For croup, upper airway edema, For hypoglycemia (Diabetes) DOSE: 0.25ml -1ml DOSE: 2.5g IV (Epi 1-1,000 soln) Check blood sugar with Accu check Bronchodilation, vasoconstriction For Bronchospasm, allergic reaction, anaphalactic shock DIAZEPAM (Valium) Given IM, SC Elevates seizure threshold, relaxes skeletal muscle DOSE: 0.2-0.5mg For seizures (EPI 1-10,000 soln) May cause BP and resp. drive Cardiac stimulation DOSE: 2-10mg IV For VF, PEA, asystole, anaphylaxis DOSE: 1mg IV, ET every 3-5min DIGOXIN Positive inotrope ESMOLO (Brevibloc) For heart failure, A-Fib, A-Flutter, PSVT Blocks stimulation of Beta 1 receptor sites leading to Not for blocks, VG decreased HR, BP and contractility For SVT, A-Fib, A-Flutter Toxicity may produce rhythm disturbances, HR, blurred vision, especially with renal pts. Not for Pulmonary Edema, cardiogenic shock, bradycardia, 2nd & 3rd degree block DOSE: 10-15mcg/kg IV May cause decrease BP, decrease HR, chest pain CLOMIDTE (Amidate) Sedation For rapid sequence intubations Not for pregnant women or people less then 10 y.o DOSE: 0.3 mg/kg IV FENTANYL (Sublimaze) Alters perception of pain For pain Not for pts on MAO inhibitors, Myasthenia Gravis, acute asthma or Hx seizures. Have Narcan on hand to reverse FLUMAZENIL (Romazicon) Benxodiazepine antagonist Reverses the effects of Ativan, Versed, Xanaz, Valium… Not for cyclic antidepressant OD DOSE: 0.2mg IV FOSPHENYTOIN (Cerebyx) Anticonvulsant Status epilepticus FUROSEMIDE (Lasix) Diuretic, vasodilation For Pulmonary Edema, 2nd to CHF Not for Anuria, decreased K+, Hepatic coma May cause hypokalemia, hypocalcemia, hypomagnesemia, volume depletion, and decreased BP DOSE: 20-80 mg IV over 1-2 min HALOPERIDOL (Haldol) Antipsychotic For psychotic disorders (schizophrenia) Not for Parkinson’s disease, bone marrow depression, Epilepsy Given by deep IM HEPARIN Inhibits coagulation For MI, venous thrombosis, pulmonary embolism, Peripheral arterial embolism. Not for hemorrhagic stroke, active bleeding, thrombocytopenia DOSE: 60 u/kg IV, cont. infusion 12 u/kg hr INSULIN (Regular) Decreases blood sugar (short acting) For diabetes mellitus, keto acidosis Overall tx of DKA includes replacing intravascular fluid volume before administering insulin. Check blood sugar every 30 min during infusion. LABETALOL (Normodyne) Alpha and Beta blockers For severs hypertension, Aortic Aneurysm Not for Asthmatics, cardiac failure, decreased HR LIDOCAINE Elevates VF threshold For VF, VT, PVC;s Not for AV blocks, decrease BP, decreased HR DOSE: 1.0 – 1.5 mg/kg IV Also used as local Anesthtic, cough suppressant LORAZEPAM (Adivan) Sedation For seizures, watch for decreased RR DOSE: 2-4 mg IV MAGNESIUM SULFATE May reduce incidence of post infarction ventricular Arrhythmias For cardiac arrest due to decreased mg or Torsades de Pointes DOSE: 1-2g IV for arrest Torsades 1-2g IV diluted in 50-100ml D5W MANNITOL (20%) Reduces ICP and Cerebral Edema Osmotic diuretic For severed head injury Not for Active bleeding, pulmonary edema METHYLPREDNISOLONE (Solu-medrol) Systemic steroid, decreased inflammation For Asthma, Acute spinal cord injury, Anaphylactic shock Not for Fungal infections, GI ulcers May cause decrease K+, increase sugar DOSE: Asthma 10-250 mg/IV q 4-6 hrs METOPROLOL (Lopressor) Beta blocker, decreases BP For acute MI, Angina Not for Cardiogenic shock, AV blocks, CHF, COPD DOSE: 5mg IV MIDAZOLAM (Versed) Produces calming effect For sedation (many procedures) May cause decreased BP, RR, laryngospasm DOSE: 1.5mg 2.5mg IV MILRINONE (Primacor) Vasodilator, inotrope For acute heart failure Administer in separate IV line from Lasix DOSE: 50mcg/kg NALOZONE (Narcan) Narcotic antagonist For acute opioid overdose DOSE: 0.4 – 2mg IV NITRODLYCERIN (sublingual, spray, past) Vasodilatation, reduces myocardial O2 demand by decreasing preload, increasing blood flow within coronary vessels. For angina, CHF, HTN Not for Hypovolemia, severe hypotension Side effect: headache NITROPRUSSIDE (Nitropress) Decreases BP Dilates peripheral arteries and veins For hypertensive crisis Wrap container in aluminum foil to protect from light NOREPINEPHRINE (Levophed) Inotrope, vasoconstrictor, dilates coronary arteries For acute hypotensive states (MI, sepsis) Not for Hypovolemia, profound hypoxia May cause ischemic injury, bradycardia, decrease renal perfusion PHENYTOIN (Dilantin) Stabilizes neuronal membranes For seizures Not for decreased HR, blocks, hypoglycemia seizures PROCAINAMIDE (Pronestyl) Peripheral vasodilator, decreases PVC’s For PVC’s, VT refractory to Lidocain Not for AV blocks PROPOFOL Decreases cerebral blood flow, cerebral O2 consumption and ICP Used for sedation May cause bradycardia, decreased BP, apnea SUCCINYLCHOLINE (Anectine) Skeletal muscle relaxation & paralysis Rapid intubations Short acting 4-6min, must be able to ventilated pt Not for pts with hyperkalemia (caused arrest), renal failure DOSE: 1 – 1.5 mg/ IV ATRIAL FIBRILLATION (A-Fib) Erratic/chaotic Atrial contractions with normal or narrowed QRS complexes. No P wave present Rates are very high in atrium > 200, overall HR 180-200 Fix by cardioverting Atrium or medication to slow AV conduction atrial fibrillation (top) and sinus rhythm (bottom). The purple arrow indicates a P wave, which is lost in atrial fibrillation. ECG of ATRIAL FLUTTER (A-Flutter) P waves fire without conduction in a “saw tooth” pattern Unlike A-Fib HR slower and P-waves are present and countable BLOCKS A heart block occurs before a ischemic event such as and MI. The hearts electrical conduction system is slowed as conduction travels around dead (necrotic) myocardium to reach its intended site. 1st degree block – delayed PR interval (not serious) 2nd DEGREE TYPE 1 Progressively longer PR intervals until and entire QRS complex is dropped. The HR is generally slower then normal TENECTEPLASE (TNKase) Thrombolytic Acute MI Not for active bleeding 2nd DEGREE TYPE 2 More dangerous and may progress to 3rd degree block Consistent missing QRS complexes HR slowed VASOPRESSIN (may be used instead of Epi in code) Pressor and antidiurectic hormone activities For shock-refractory V-Fib DOSE: 40 U IV push, IO or ET 1 time only 3rd DEGREE Complete dissociation of Atrias and ventricles. The P waves fire without any association to QRS which fires independently. Life threatening will require pacemaker. VERAPAMIL (Calan) Calcium channel blocker For PSVT Not for AV blocks, people on beta blocker HYPERKALEMIA Dangerous condition leading to cardiac arrest. Signs/Symptoms: Bradycardia, aystole, muscle weakness, confusion, P wave flat. To correct: Give calcium chloride, to neutralize give sodium Bicarb, insulin or Albuterol 10-20 mg over 15 min. To remove from body= Lasix or dialysis BETA BLOCKER Any drug that inhibits the sympathemetic Beta Adrenergic recepotor sites in the cardiac smooth muscle and bronchial smooth muscle. Used to slow conduction, and thus slow excessively high rates. Used for A-Fib, A-Flutter, SVT. CALCIUM CHANNEL BLOCKER Blocks the influx of calcium into myocardium thus decreasing contraction and HR