Pain / Sedative / Induction / RSI Flashcards
Haloperidol
(mechansim of action)
The direct action of Haldol are unknown.
However Haldol produces calmness and reduces aggressiveness with the disappearance of hallucinations and delusions by depressing the cerebral cortex, hypothalamus and limbic system which controls activity and aggression.
Blocks postsynaptic dopamine (D1 and D2 receptors)
Haloperidol
(onset and duration)
Haloperidol
Onset: 20 - 30 min
Half Life: 21 - 24 hrs
Duration: 4 - 8 hrs
Haloperidol
(side effects)
Haloperidol
♦ Extrapyramidal symptoms
♦ Caution with elderly patients - may require smaller doses to achieve therapeutic effect.
♦ Haloperidol has been associated with cardiac arrest in patients with prolonged QT intervals.
♦ Closely monitor for cardiac arrhythmia, particularly when the medication is given IV.
May cause neuroleptic malignant syndrome.
Haloperidol
(indications)
Haloperidol
Altered Mental Status when patient is combative and potential for harm to patient and/or personnel is present.
Haloperidol
(contraindications)
♦ QT prolongation or hx of torsades de pointes.
♦ Tardive dyskinesia is a syndrome of potentially irreversible, involuntary, dyskinetic movements that may develop in pt’s treated w/ antipsychotics.
♦ Parkinson’s disease; have increased sensitivity to antipsychotics. May include severe extrapyramidal symptoms, confusion, sedation, and falls. Additionally, haloperidol may impair the antiparkinson effects of levodopa and other dopamine agonists.
Haloperidol
(adult dose)
Haloperidol (adult)
♦ 5 mg IM
♦ q 15 minutes PRN up to a total of 20mg.
Haloperidol
(pediatric dose)
Haloperidol (ped)
♦ 0.1 mg/kg IM
♦ Max dose of 5 mg
Haloperidol
(pregnancy safe)
Pregnancy Class C
Haloperidol should be used during human pregnancy only when the benefits to the mother outweigh the potential risks to the fetus.
breast-feeding should be avoided during treatment with haloperidol. Haloperidol is excreted into breast milk.
Etomidate (Amidate)
(mechanism of action)
♦ Etomidate is an ultra-short- acting nonbarbiturate that appears to act similar to GABA by depressing the activity of the brain stem reticular activating system, reducing subcortical inhibition and inducing sleep.
♦ Etomidate will induce apnea, cause a slight decrease in intracranial pressure and a moderate increase in intraocular pressure.
(will not cause significant hemodynamic changes)
Etomidate (Amidate)
(onset and duration)
Etomidate
Onset: 10 - 20 sec
Half Life: 75 min
Duration: 4 - 10 min
Etomidate (Amidate)
(side effects)
Etomidate Side Effects
♦ Respiratory depression,
♦ Venous pain,
♦ Skeletal muscle movement
Etomidate (Amidate)
(indications)
For use in RSI protocol – for anesthesia induction
Etomidate (Amidate)
(contraindications)
Etomidate Contraindications
♦ Adrenal Insufficiency
♦ Sepsis
Etomidate (Amidate)
(adult dose)
Etomidate(adult)
♦ 0.3 mg/kg IV push over 30 seconds
Maximum of 40 mg
(same as pediatric)
Etomidate (Amidate)
(pediatric dose)
Etomidate(pediatric)
♦ 0.3 mg/kg IV push over 30 seconds
Maximum of 40 mg
(same as adult)
Etomidate (Amidate)
(pregnancy safe)
Pregnancy Class C
No adequate human studies
Potential benifits may warrant use if benifits outweigh the risks
Rocuronium (Zemuron)
(mechanism of action)
Rocuronium _Non-_depolarizing NBA
♦ Causes total paralysis by blocking the binding of acetylcholine and the inotropic activity of Ach receptors
♦ Skeletal muscle relaxation proceeds in predictable order, muscles with fine movements, e.g., eyes, face, neck. → muscles of the limbs, chest, abdomen → diaphragm. Muscle tone returns in the reverse order.
Rocuronium (Zemuron)
(onset and duration)
Rocuronium
Onset: 1 min
Half Life: 1.4 - 2.4 hrs
Duration: ~ 30 min
Rocuronium (Zemuron)
(side effects)
Rocuronium Side Effects
♦ Hypotension,
♦ Hypertension,
♦ Increased pulmonary vascular resistance
Rocuronium (Zemuron)
(disease related concerns)
♦ Conditions that may antagonize neuromuscular blockade (decreased paralysis): Respiratory alkalosis, hypercalcemia, demyelinating lesions, peripheral neuropathies, denervation, and muscle trauma
♦ Conditions that may potentiate neuromuscular blockade (increased paralysis): Electrolyte abnormalities (eg, severe hypocalcemia, severe hypokalemia, hypermagnesemia), cachexia, neuromuscular diseases, metabolic acidosis, respiratory acidosis, Eaton-Lambert syndrome, and myasthenia gravis
♦ Hepatic impairment: clinical duration may be prolonged
♦ Pulmonary hypertension: may increase pulmonary vascular resistance worsening symptoms of right heart failure.
Rocuronium (Zemuron)
(indications)
♦ Facilitates endotracheal intubation by paralysis of skeletal muscle
♦ To increase pulmonary compliance during mechanical ventilation
Rocuronium (Zemuron)
(contraindications)
Rocuronium Contraindications
♦ Hypersensitivity
Rocuronium (Zemuron)
(adult dose)
Rocuronium(adult)
♦ 1 mg/kg IO/IV
Maximum dose of 100 mg
(same as pediatric)
Rocuronium (Zemuron)
(pediatric dose)
Rocuronium(pediatric)
♦ 1 mg/kg IO/IV
Maximum dose of 100 mg
(same as adult)
Rocuronium (Zemuron)
(pregnancy safe)
Pregnancy Class C
Rocuronium crosses the placenta
The manufacturer does not recommend use for rapid sequence induction during cesarean section.
Succinylcholine (Anectine)
(mechanism of action)
Succinycholine = Depolarizing NMBA
♦ causes rapid depolarization but remains bound to the receptor, preventing muscle fibers stimulation by Acetylcholine and being triggered again. (rapid onset, short duration 7-12 mins)
♦ Depolarization results in fasciculation of the skeletal muscles followed by muscle paralysis.
Initially, paralysis involves the levator muscles of the *face* and muscles of the *glottis_. → *_intercostals, _diaphragm_, and all other skeletal muscles. Recovery generally occurs in the reverse order.
Succinylcholine (Anectine)
(onset and duration)
Succinycholine
Onset: 1 min
Duration: 4 - 6 min
Succinylcholine (Anectine)
(warnings/precautions)
Succinylcholine Precautions
♦ Bradycardia: Risk of bradycardia may be increased with 2nd dose and may occur more in children. (may be reduced by pretreating with anticholinergic agents (eg, atropine)
♦ Increased intraocular pressure; avoid use in (eg, narrow-angle glaucoma, penetrating eye injuries).
♦ May cause a transient increase in ICP (adequate anesthetic induction prior to administration of succinylcholine will minimize this effect).
♦ Malignant hyperthermia: risk may be increased with concomitant administration of volatile anesthetics
♦ Hyperkalemia: Use with extreme caution in patients with pre-existing hyperkalemia. Severe hyperkalemia may develop in patients with chronic abdominal infections, burn injuries, multi-trauma/crush injuries, extensive denervation of skeletal muscle, upper motor neuron injury, subarachnoid hemorrhage, or conditions which cause degeneration of the central and peripheral nervous system.
Succinylcholine (Anectine)
(side effects)
SuccinycholineSide Effects
♦ Cardiac arrhythmias,
♦ Increased Intraocular Pressure,
♦ Muscle Fasciculation
Succinylcholine (Anectine)
(indications)
♦ Skeletal muscle relaxation
♦ Facilitate management of patients undergoing mechanical ventilation
Succinylcholine (Anectine)
(contraindications)
SuccinylcholineContraindications
♦ Penetrating eye injury
♦ Hypersensitivity to succinylcholine or any component of the formulation;
♦ Personal/family hx of malignant hyperthermia
♦ Use after the acute phase of injury following major burns, multiple trauma, extensive denervation of skeletal muscle, or upper motor neuron injury.
Succinylcholine (Anectine)
(adult dose)
Succinycholine(adult)
♦ 2 mg/kg IO/IV over 30 seconds
Maximum dose of 200 mg
(same as pediatric)
Succinylcholine (Anectine)
(pediatric dose)
Succinylcholine(pediatric)
♦ 2 mg/kg IO/IV over 30 seconds
Maximum dose of 200 mg
(same as adult)
Succinylcholine (Anectine)
(pregnancy safe)
Pregnancy Class C
Small amounts cross the placenta.
Use succinylcholine during pregnancy only if clearly needed.
Vecuronium Bromide (Norcuron)
(mechanism of action)
Vecuronium - Non**depolarizing NMBA
♦ Causes total paralysis by blocking the binding of acetylcholine and the inotropic activity of Ach receptors, (lasting 30 mins - 2 hours)
♦ Neuromuscular blockade begins with muscles associated with fine movements (e.g., eyes, face, and neck), → muscles of the limbs, chest, and abdomen and, finally, the diaphragm.
Muscle tone returns in the reverse order.
Vecuronium Bromide (Norcuron)
(onset and duration)
Vecuronium
Onset: 2.5 - 3 min
Half Life: 1.5 hrs
Duration: 45 - 46 min
Vecuronium Bromide (Norcuron)
(side effects)
VecuroniumSide Effects
Hypotension
Hypertension
Bronchospasm
Dysrythmias
Histamine Release
Malignant Hyperthermia
Vecuronium Bromide (Norcuron)
(reversal agent)
cholinesterase inhibitor
(e.g., neostigmine, pyridostigmine, edrophonium)