Drugs Flashcards
(113 cards)
Oxygen
Class:
Naturally occurring atmospheric gas.
Description:
Oxygen is an orderless, tasteless, colorless gas that is present in room air at a concentration approx. 21%. It is an important emergency drug that is used to reverse hypoxemia; in doing so, it helps oxidize glucose to produce ATP and helps reduce the size of infracted tissue during an AMI.
Indications:
Confirmed or suspected hypoxia, Ishemic chest pain, respiratory insufficiency, Prophylactically during air transport, confirmed or suspected carbon monoxide poisoning and other causes of decreased tissue oxygenation (cardiac arrest)
Contraindications:
Oxygen should never be withheld in any critical patient.
Adverse Reactions:
High concentration oxygen may cause decrease LOC and respiratory depression in patients with chronic dioxide retention.
Dosage:
Adult - High concentration 10-15 L/min via non-rebreather mask or high-flow oxygen delivery device. Low concentration 1-4 L/min via nasal cannula; Venturi mask concentrations 24%, 28%, 32%, 36%
Peds - same as adult
Nitropaste (Nitro-Bid Ointment)
Class: Vasodilator
Description: Nitro paste contains a 2% solution of nitroglycerin in an absorbent paste.
Indications: Angina pectoris, Chest pain associated with AMI (less easily titrated than IV nitroglycerin)
Contraindications: Hypersensitivity, Hypotension, Head Injury, Cerebral hemorrhage
Adverse Reactions: Transient headache, Postural syncope, Reflex tachycardia, Hypotension, Nausea/Vomiting, Allergic reactions
Dosage:
Adult: Apply 1-2 inches over 2-4 inch area of skin that is free of hair; cover with transparent wrap and secure with tape.
Peds: Not recommended
How Supplied: 20 to 60 gm tubes of 2% nitroglycerine paste.
Naloxone (Narcan)
Class:
Opioid antagonist
Description:
Naloxone is a competitive antagonist that is used in the management of known or overdose caused by narcotics. Naloxone antagonizes all actions of morphine.
Indications:
For complete or partial reversal of CNS and respiratory depression induced by Opioids including the following - Narcotics agonist: Morphine sulfate, Heroin, Hydromorphone, Methadone, Meperidine, Paregoric, Fentanyl citrate, Oxycodone, Codeine, Propoxyphene, Narcotic agonist/antagonist; Pentazocine, Nalbuphine, Decreased level of consciousness, Coma of unknown origin, Circulatory support in refractory shock (investigational), PCP and alcohol ingestion (investigational).
Contraindication:
Hypersensitivity, use with caution in narcotic-dependent patients who may experience withdrawal syndrome (including neonates of narcotic-dependent mothers)
Adverse Reactions:
Tachycardia, Hypertension, Dysrhyhmias, Nausea and vomiting, Diaphoresis, Blurred vision, Withdrawal (opiate)
Dosage:
Adult - Begin with 0.4 - 2 mg IV/IM/SQ or ET diluted. May be repeated in 5 minute intervals to max of 10mg
Infusion:
Mix 8 mg in 1000ml of D5W; infuse at 2/3 of initial reversal dose titrated to desired effect
PEDS - 1mg IV/IO/SQ/ET diluted
How Supplied:
0.4mg/ml (1ml, 10ml) 1 mg/ml (2ml) vials
Nitroglycerin (Nitrostat and others)
Class:
Vasodilator
Description:
Nitrates and nitrites dilate arterioles and veins in the periphery. The resultant reduction in preload, and to a lesser extent in afterload, decreases the workload of the heart and lowers myocardial oxygen demand. Nitroglycerin is a very lipid soluble and is thought to enter the body from the GI tract through the lymphatic, rather than the portal blood.
Indications:
Ischemic chest pain, Pulmonary hypertension, CHF, Hypertensive emergencies
Contraindications:
Hypersensitivity, Hypotension, Head injury, Cerebral hemorrhage
Adverse Reaction:
Transient headache, Reflex tachycardia, Hypotension, Nausea/Vomiting, Postural syncope, Diaphoresis
Dosage:
Adult:
Tablet: (0.15-0.6 mg SL; may be repeated in 5 min two times)
Metered Spray: Spray onto oral mucosa (0.4 mg/spray) may be repeated two times
Infusion: 200-400 mcg/ml @ rate of 10-20 mcg/ml increase by 5-10 mcg/min every 5-10 min until desired effect is achieved
How Supplied:
0.15 mg (1/400 gr) 0.3 (1/200 gr) tablets
Oxytocin (Pitocin)
Class:
Pituitary Hormone
Description:
Oxytocin means “rapid birth” and is a synthetic hormone named for the natural posterior pituitary hormone. It stimulates uterine smooth muscle contractions, and helps expedite the normal contractions of a spontaneous labor. As with all significant uterine contractions, there is a transient reduction in uterine blood flow. Oxytocin also stimulates the mammary glands to increase lactation, without increasing the production of milk. The drug is administered in the prehospital setting to control post-partum bleeding.
Indications:
Postpartum hemorrhage after infant and placental delivery.
Contraindications:
Hypertonic or hyperactive uterus, Presence of a second fetus, Fetal distress
Adverse Reactions:
Hypotension, Tachycardia, Hypertension, Dysrhythmias, Angina pectoris, Anxiety, Seizures, Nausea and vomiting, Allergic reaction, Uterine rupture
Dosage:
IM 3-10 units IM following delivery of placenta, Bleeding following incomplete or elective abortion
IV mix10 units (1 ml) in 1000ml NS or LR; infuse @ rate 20-30 drops/min via microdrip, titrate to severity of bleeding and uterine response.
How Supplied:
10 USP units/1 ampule (10 U/ml) prefilled syringe
5 USP units/1 ml ampule (5 U/ml) and prefilled syringe
Reteplase (Retavase)
Class:
Thrombolytic
Description:
Reteplase is recombinant Plasminogen activator. Thrombolytic action occurs by generating plasmin from Plasminogen that degrades the fibrin matrix of thrombus. The drug is used in the management of AMI in adults, for the improvement of function following AMI, and for a reduction in the incidence of CHF. Treatment with Reteplase should be initiated as soon as possible after the onset of AMI symptoms.
Indications:
Management of AMI in adults (must be confirmed with 12-lead ECG)
Contraindications:
Active internal bleeding, History of stroke, Recent intracranial or intraspinal surgery or trauma, Intracranial neoplasm, AV malformation, Aneurysm, Bleeding disorder, Severe uncontrolled hypertension
Adverse Reaction:
Hypotension, Bleeding (internal and at superficial sites), Reperfusion dysrhythmias, Allergic Reaction, Nausea/Vomiting
Dosage
Adult: Administer as 10+10 U double-bolus injection. Each bolus administered over 2 min. (Second bolus given 30 min after the first bolus). Heparin and aspirin should be administered concomitantly.
Peds: Safety not established
How Supplied:
Supplied in a kit single use vials 10.8 units each.
Procainamide
Class:
Antidysrhthmic (Class I-A)
Description:
Procainamide suppresses Phase 4 depolarization in normal ventricular muscle and Purkinje fibers, reducing the automaticity of ectopic pacemakers. It also suppresses reentry dysrhythmias by slowing intraventricular conduction. Procainamide may be effective in treating PVCs and recurrent ventricular tachycardia that cannot be controlled with Lidocaine.
Indications:
Suppressing PVCs refactory to Lidocaine, Suppressing VT (w/pulse) refractory to Lidocaine, Suppressing VF refactory to Lidocaine, PSVTs with wide complex tachycardia of unknown origin
Contraindications:
Second and third degree AV block (w/o functioning artificial pacemaker), Digitalis toxicity, Torsades de pointes, Complex heart block, Tricyclic antidepressant toxicity.
Adverse Reaction:
Hypotension, Bradycardia, Reflex tachycardia, AV block, Widened QRS, Prolonged P-R or Q-T interval, PVCs, VT, VF, Asystole, CNS depression, Confusion, Seizure.
Dosage:
Adult: 20mg/min (30 mg/min refractory ventricular fibrillation) slow IV infusion (max total 17mg/kg; max dose usually 1 g) Maintenance Infusion (after resuscitation from cardiac arrest) Mix 1 gm in 250 mL solution (4 gm/mL), infuse @ 1-4 gm/min
PEDS: Not recommended in the prehospital setting
How Supplied:
1 gm in 10 mL vial; 1 gm in 2 ML vial for infusion
Phenytoin (Dilantin)
Class:
Anticonvulsant
Description:
Phenytoin is a drug of choice in controlling grand mal and focal motor seizure activity. It was developed as an alternative anticonvulsant that would cause less sedation than barbiturates. Phenytoin appears to inhibit the spread of seizure activity by promoting sodium efflux from neurons, thereby stabilizing the neuron’s threshold against excitability caused by excess stimulation. Phenytoin has also been used to treat digitalis induced atrial and ventricular dysthymias by stabilizing the sodium influx in the Purkinje fibers of the heart, decreasing abnormal ventricular automaticity, and increasing AV node conduction.
Indications:
Major motor seizures (generalized grand mal, simple partial and complex partial seizures), Adams-Stokes syndrome.
Contraindications:
Hypersensitivity, Sinus bradycardia, Second and third degree heart block, Sinoatrial block
Adverse Reactions:
Hypotension with rapid IV push, Cardiovascular collapse (w/rapid IV push), Dysrhythmias, Bradycardia, Respiratory depression, CNs depression, Ataxia, Nystagmus, Thrombophlebitis, Nausea/vomiting, Pain from injection site.
Dosage:
Seizures:
Adults: 100mg or 15-20 mg/kg (usually loading dose) slow IV; not to exceed 1 g or rate of 50 mg/min; following by 100-150 mg/dose at 30 min intervals
Peds: 10-20 mg
How Supplied:
50 mg/mL in 2 and 5 mL ampules, 2 mL Prefilled syringes
Paneuronium (Pavulon)
Class: Neuromuscular Blocker (non-depolarizing)
Description:
It produces complete muscular relaxation by binding to the receptor for acetylcholine at the neuromuscular junction, without initiating depolarization for the muscle membrane. As the concentration of acetylcholine rises in the neuromuscular junction, Pancuronium is displaced and muscle tone is regained. Neuromuscular blocking agents are used to provide muscle relaxation during surgery without general anesthesia, and to prevent convulsive muscle spasms during electroconvulsive therapy. In emergency care, it is used to optimize conditions for endotracheal intubation and assisted ventilations.
Indications:
Induction or maintenance of paralysis after intubation to assist ventilations
Contraindications:
Known hypersensitivity to the drug. Inability to control airway and/or support ventilations with oxygen and positive pressure. Neuromuscular disease (e.g. myasthenia)
Adverse Reactions:
Transient hypotension, Tachycardia, Dysrhythmias, Hypotension, Excessive salivation, Pain, Burning at IV injection site.
Dosage:
Adult:
0.04-0.1 mg/kg slow IV; repeat every 30-60 min prn
Peds:
0.04-0.1 mg/kg slow IV (newborn 0.02mg/kg/dose)
How Supplied:
1,2 mg/mL, 4mg/2mL
Propranolol (Inderal)
Class:
Beta adrenergic blocker, Antidysrhythmic (Class II)
Description:
Propranolol is a nonselective beta adrenergic blocker that inhibits chronotropic, inotropic, and vasodilator response to beta adrenerfic stimulation. It slows the sinus rate, depresses AV conduction, decreases cardiac output, and reduces blood pressure. In addition, propranolol decreases myocardial oxygen demand, and reduces the risk of sudden death inpatients with AMI.
Indications:
Hypertension, Angina pectoris, VT, VF, and rapid supraventricular dysrhythmias refractory to other therapies.
Contraindications:
Sinus bradycardia, Second- or Third-degree AV block, Asthma, Cardiogenic shock, Pulmonary edema, Uncompensated CHF, COPD (relative)
Adverse Reactions:
Bradycardia, Heart blocks, Bronchospasm (in susceptible person), Dyspnea, Dizziness, Weakness, Nausea/Vomiting, Visual disturbance
Dosage: Adult: 1-3mg IV over 2-5 min (not to exceed 1 mg/min); can be repeated after 2 min (total dose of 0.1 mg/kg) Peds: Not recommended
How Supplied:
1mg/mL vials
Promethazine (Phenergan)
Class:
Phenothiazine, Antihistamine
Description:
Promethazine is an H1 receptor antagonist that blocks the actions of histamine by competitive antagonism at the H1 receptor. In addition to antihistamine effects, it also possesses sedative, anti-motion, anti-emetic, and considerable anti-cholinergic activity. It is often administered with analgesics, particularly narcotics, to potentiate their effects, though the occurrence of potentiation is controversial.
Indications:
Nausea, vomiting, motion sickness, Pre and Post operative, obstetric sedation, to potentiate the effects of analgesics.
Contraindications:
Hypersensitivity, comatose states, CNS depression from alcohol, barbiturates, or narcotic, signs associated with Reye’s syndrome
Adverse Reactions:
Sedation, Dizziness, May impair mental and physical ability, allergic reactions, dysrhythmias, Nausea/vomiting, hyperexitability, dystonias, Use in children may cause hallucinations, convulsions, and sudden death
Dosage: Adult: 12.5-25 mg IV or deep IM Peds: Not indicated in the prehospital setting
How supplied:
25, 50 mg/mL in 1 mL ampules and Tubex syringes
Nalmefene (Revex)
Class:
Opioid antagonist
Description:
Nalmefene is a competitive opioid antagonist used in the management of known or suspected opioid overdose, including respiratory depression included by either natural or synthetic opioids.
Indications:
For the complete or partial reversal of CNS and respiratory depression induced by opioids
Contraindications:
Hypersensitivity, use with caution in narcotic dependent patients
Adverse Reactions:
Tachycardia, hypertension, dysrhythmias, nausea/vomiting. diaphoresis, blurred vision, withdrawl (opiate)
Dosage: Adult: 0.5-1.0 mg/70kg may be repeated once in 2-5 minutes Peds safety not established
How Supplied:
100 mcg/mL or 1 mg/mL
Nalbuphine (Nubain)
Class:
Opioid analgesic
Description:
Nalbuphine is a synthetic analgesic with a potency equivalent to morphine sulfate on a milligram-to-milligram basis, It has both agonist and antagonist properties. Nalbuphine may be used for treating chest pain associated with MI as it reduces oxygen needs of the heart without reducing blood pressure. Nalbuphine is not presently regulated under the Controlled Substance Act.
Indications:
Chest pain associated with myocardial infarction, Moderate to severe acute pain, Pulmonary edema; with or without associated pain (morphine is first-line medication in this class)
Contraindications:
Hypersensitivity to narcotics, Hypovolemia, Hypotension, Head injury or undiagnosed abdominal pain
Adverse Reactions:
Sedation (most common), Hypotension, Bradycardia, Facial flushing, Respiratory depression, CNS depression, Euphoria, Paradoxical CNS stimulation, Blurred vision
Dosage: Adult: 2-5 mg Slow IV (may be augmented with 2 mg doses prn; every 3-6 hr) Peds: Not recommended
How Supplied:
10 mg in 1 mL ampule; 20 mg in 1 mL ampule
Morphine Sulfate (Astramorph/ PF and others)
Class:
Opioid analgesic
Description:
MS is a natural opium alkaloid that has a primary effect of analgesia. It also increases peripheral venous capacities and decreses venous return. MS causes euphoria and respiratory and CNS depression. Secondary pharmacologic effects of MS include depressed responsiveness of alpha adrenergic receptors and baroreceptor inhibition. In addition, because MS decreases both preload and afterload, it may decrease myocardial oxygen demand. The properties of this medication make it extremely useful in emergency care. MS is a schedule II drug.
Indications:
Chest pain associated with myocardial infarction, Pulmonary edema w/ or w/o associated pain, Moderate to severe acute and chronic pain.
Contraindications:
Hypersensitivity to narcotics, Hypovolemia, Hypotension, Head injury or undiagnosed abdominal pain, Increased ICP, Severe respiratory depression, Patients who have taken MAO inhibitors within 14 days
Adverse Reactions:
Hypotension, Tachycardia, Bradycardia, Palpitations, Syncope, Facial flushing, Respiratory depression, Euphoria, Bronchospasms, Dry mouth, Allergic reaction
Dosage
Adult:
1-3 slow IV over 1-5 min; titrated to effect
Peds
0.1-0.2 mg/kg/dose IV (max 15 mg total dose)
How Supplied:
10 mg of solution in ampules and Tubex syringes
Midazolam Hydrochloride (versed)
Class:
Short-acting benzodiazepine
Description:
Midazolam HCL is a water-soluble benzodiazepine that may be administered for conscious sedation to relieve apprehension or impair memory prior to tracheal intubation or cardioversion
Indications:
Premedication for tracheal intubation or cardioversion
Contraindications:
Hypersensitivity to Midazolam, Glaucoma (relative), Shock, Coma, Alcohol intoxication (relative; may be used for alcohol withdrawal), Depressed vital signs, Concomitant use of barbiturates/alcohol/narcotics/or other CNS depressants
Adverse Reactions:
Respiratory depression, Hiccough, Over-sedation, Pain at the injection site, Nausea/vomiting, Headache, Blurred vision, Fluctuations in vital signs, Hypotension, Respiratory arrest.
Dosage:
Adult:
1-2.5 mg slow IV (over 2-3 min) may be repeated if necessary in small increments (total max dose not to exceed 0.1 mg/kg)
Peds:
Loading dose 0.05-0.2 mg/kg; then continue infusion 1-2mcg/kg/min
Elderly:
0.5 mg slow IV (max 1.5 mg in a 2 min period)
How Supplied:
2, 5, 10, mL vials (1mg/mL) 1, 2, 5, and 10 mL vials (5 mg/mL)
Methylprednisolone (Solu-Medrol)
Class:
Glucocorticoid
Description:
Methylprenisolone is a sympathetic steroid that suppresses acute and chronic inflammation. In addition, it potentiates vascular smooth muscle relaxation by beta adrenergic agonists, and may alter airway hyperactivity. A newer usage is for reduction of post-traumatic spinal cord edema.
Indications:
Anaphylaxis, Bronchodilator-unresponsive asthma, Shock (controversial), Acute Spinal Cord Injury.
Contraindications:
Use with caution in patients with GI bleeding, diabetes mellitus, severe infection
Adverse Reactions:
Headache, hypertension, sodium and water retention, Hypokalemia, Alkalosis
Dosage: Adult: Variable; usually within the range of 40-125 mg IV, except for spinal cord injury where the initial dose is 30 mg/kg IV bolus followed by an IV infusion of 5.4 mg/kg/hr Peds: 1-2 mg/kg/dose IV
How Supplied:
20, 40, 80 mg/mL
Metaproterenol (Alupent)
Class:
Sympathomimetic, Bronchodilator
Description:
Metaproterenol relaxes the smooth muscles of the bronchial tree and peripheral vasculature by stimulating the Beta2 adrenergic receptors of the sympathetic nervous system.
Indications:
Bronchial asthma, Reversible bronchospasms (bronchitis, emphysema)
Contraindications:
Hypersensitivity, Cardiac dysrhythmias, Tachycardia caused by digitalis toxicity
Adverse Reactions:
Restlessness, Apprehension, Palpitations, Tachycardia, Dysrhythmias, Decreases blood pressure, Coughing, Tremor, Facial flushing, Diaphoresis
Dosage: MDI Adult: 2-3 inhalations every 3-4 hours (2 min between inhalations) max dose of 12 inhalations/day Peds: Same as adult
How Supplied:
MDI 0.65/mg/spray (15 mL inhaler); Solutions: 0.4%, 0.6%, and 5% Syrup; (10mg/mL)
Meperidine (Demerol)
Class:
Opioid analgesic
Description:
Meperidine is a synthetic opioid agonist that works at opioid receptors to produce analgesia and euphoria. Excessive doses can cause respiratory and CNS depression. It has a potential for physical dependence and abuse and is classified as a Schedule II drug.
Indications:
Moderate to severe pain, Preoperative medication, OB analgesia
Contraindications:
Hypersensitivity to narcotics, Patients taking MAO inhibitors or selective reuptake inhibitors, During labor or delivery of a premature infant, Head injury.
Adverse Reactions:
Respiratory depression, Nausea and vomiting, Euphoria Delirium, Agitation, Hallucination, Seizures, Headache, Hypotension, Visual disturbances, Coma, Facial Flushing, Circulatory collapse, Dysrhythmias, Allergic reaction
Dosage:
Adult:
500-1000 mg IM every 3-4 hour as needed; 15-35 mg IV per hour (dosage should be individualized)
Elderly:
25 mg IM every 4 hours as needed
Peds:
1-2 mg/kg/dose IM every 3-4 hour as needed
How Supplied:
25, 50, 100 mg/mL in 1 and 5 mL prefilled syringes and Tubex
Mannitol (Osmitrol)
Class:
Osmotic diuretic
Description:
Because of Mannitol’s osmotic properties, it promotes the movement of fluid from the intracellular into the extracellular space. In emergency care, Mannitol is used in the treatment of head injury to decrease cerebral edema and intracranial pressure.
Indications:
Cerebral edema, other causes of ICP, Rhabdomyolysis, (myoglobinuria), Blood transfusion reaction, Promoting urinary excretion of toxic substances
Contraindications:
Severe hypotension, profound hypovolemia, active intracranial bleeding, dehydration, hyponatremia, severe pulmonary edema or congestion, profound hypovolemia, severe renal disease (Anuria)
Adverse Reactions:
Transient volume overload, Pulmonary edema, Renal failure, CHF, Hypotension (from excessive diuresis), Sodium depletion
Dosage:
Adult:
0.5 g/kg in a 20% solution over 20 min; usual adult dose is 20-200 g/24 hour
Peds:
0.2-0.5 g/kg/dose IV infusion over 30-60 min (max 1 g/kg dose) every 4-6 hours
How Supplied:
250 and 500 mL of 20% solution for IV infusion
Magnesium Sulfate
Class:
Electrolyte, Anticonvulsant
Description:
Magnesium sulfate reduces strained muscle contractions and blocks peripheral neuromuscular transmission by reducing the release of acetylcholine at the myonueural junction. In Emergency care Magnesium sulfate is used in the management of seizures associated with toxemia of pregnancy. Other uses of Magnesium include uterine relaxation, as a bronchodilator after beta agonist and Anticholinergic agents have been used, replaced therapy for magnesium deficiency. Magnesium sulfate is gaining popularity as an initial treatment in the management to TCA or overdose or digitalis toxicity. The drug also is considered as a Class II agent (AHA guidelines) for refractory VF/VT after administration of Lidocaine or bertylium doses.
Indications:
Seizurees of eclampsia (toxemia or pregnancy), Torsades de pointes, Suspected hypomagnesaemia, Refratory ventricular fibrillation
Contraindications:
Heart block or myocardial damage
Adverse Reactions:
Diaphoresis, Facial flushing, Hypotension, Depressed reflexes, hypothermia, Reduced heart rate, Circulatory collapse, respiratory depression, Diarrhea
Dosage: Adult: 1-4g (8-32mEq) IV; maximum dose 1.5 mL/min (max 30-40 g/day) Peds: 20-40 mg/kg IM in 20% solution
SUSPECTED HYPOMAGNESEMIC STATE, OR REFACTORY VF/VT
Adult:
1-2 g (2-4 mL of a 50% solution in 10 mL of D5W over 1-2 min IV, Administer IV push in ventricular fibrillation
Peds:
25-50 mg/kg/dose every 8-12 hour (2-3 doses)
How Supplied:
10%, 12.5%, 50% solution in 40mg, 80mg, 100mg, and 125 mg/mL
Ipratropium (Atrovent)
Class:
Anticholinergic, Bronchodilator
Description:
Ipratropium inhibits interaction of acetylcholine at receptor sites on bronchial smooth muscle, resulting in decreased cGMP and bronchodilation
Indications:
Persistent bronchospasms
Contraindications:
Hypersensitivity to ipratropium, Atropine, Alkaloid, Soybean protein, peanuts
Adverse Reactions:
Nausea/vomiting Coughing, Headache, Tachycardia, Dry mouth, Blurred vision
Dosage: Adult: 1-2 inhalations Peds: Same as adult
How Supplied:
Aerosol 18 mcg/ actuation
Amiodarone (Cordarone)
Class:
Class III Antidysrhythmic
Description:
Amiodarone is a unique Antidysrhthmic agent with multiple mechanisms of action. The drug prolongs duration of the action potential and effective refactory period, and when given short term IV, probable include noncompetitive B-adrenoreceptor and calcium channel blockers.
Indications:
Initial treatment and prophylaxis of frequent recurring VF and hemodynamically unstable VT in patients refactory to other therapy.
Contraindications:
Pulmonary congestion, Cardiogenic shock, hypotension, sensitivity to Amiodarone
Adverse Reactions:
Hypotension, headache, dizziness, bradycardia, AV conduction, abnormalities, flushing, abnormal salivation
Dosage:
Adult:
Loading dose for cardiac arrest 300 mg (6ml) IVP; flush with 10 mL of D5W or NS. Supplemental bolus dose for cardiac arrest 150 mg (3mL) IVP followed by flush. Loading infusion after reestablishment of spontaneous circulation: 360 mg (diluted) over 6 hours. Maintenance infusion: 540 mg (diluted) over 18 hours
Peds:
Safety has not been established
How Supplied:
50 mg/mL vials
Amyl Nitrate
Class:
Coronary vasodilator
Description:
Amyl nitrate is chemically related to nitroglycerin and has been used for many years to treat angina pectoris. It is also effective in the emergency management of cyanide poisoning by causing the oxidation of hemoglobin to the compound methemoglobin. Cyanide preferentially binds methemoglobin, thus freeing hemoglobin to react with oxygen.
Indications: Cyanide poisoning (only until sodium nitrate can be given intravenously)
Contraindications:
None when used for cyanide poisoning, Severe anemia, Hypersensitivity to nitrates
Adverse Reactions:
Hypotension, Tachycardia, Palpitations, Syncope, Headache, Nausea
Dosage
Adult:
Glass ampule should be broken and help under patient’s nostrils and inhaled for 30-60 seconds. 1-6 inhalations from one ampule usually is sufficient
Peds:
Same as adult
How Supplied:
0.3 mL/glass ampule (capsule covered with woven gauze)
Bretylium Tosylate (Bretylol)
Class: Antidysrhythmic (class III)
Description:
Bretylium is an adrenergic neuronal blocking agent that has both adrenergic direct myocardial effects. Although the antidysrhythmic action of Bretylium is poorly understood, like Lidocaine, it has been found to be effective in the treatment of VF and VT. Bretylium prolongs the effective refractory period and therefore produces an increase in ventricular fibrillation threshold, perhaps through post-ganglionic adrenergic blockage. It also causes a transient release of norepinephrine, followed by blocked release and reuptake. At present, its use is reversed for those patients who fail to respond to Lidocaine or other first-line antidysrhythmic.
Indications:
Treatment of VF and VT refractory to Lidocaine
Contraindications:
Digitalis intoxications-induced dysrhythmias
Adverse Reactions:
Vertigo, Vomiting, Dizziness, Syncope, Hypotension, Bradycardia, Increase in PVC’s, Angina pectoralis, Transient Hypertension and tachycardia, lasting approx. 20 minutes.
Dosage
Adult:
5mg/kg rapid IV bolus repeat in 5 minutes at 10mg/kg (max dose 30-35 mg/kg)
Peds:
5mg/kg rapid IV maybe increased to 10 mg/kg (rarely used)
How Supplied:
Parenteral :50 mg/mL in 10 mL vials