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21 Cards in this Set
- Front
- Back
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What is the therapeutic use for lidocaine?
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anesthetic--topical/local,
antiarrhythmic (class IB) |
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What are the indications for lidocaine?
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IV..ventricular arrhythmias
IM..self-injected or when IV unavailable Local..infiltration/mucosal/ topical anesthetic Patch..pain due to post- herpetic neuralgia |
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MOA for lidocaine if given IM or IV?
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suppresses automaticity and
spontaneous depolarization of ventricles during diastole by altering flux of sodium ions across cell membranes with little or no effect on heart rate |
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MOA for lidocaine if given locally?
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produces local anesthesia by inhibiting transport of ions across neuronal membranes, thereby preventing initiation and conduction of normal nerve impulses
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What are the therapeutic effects of lidocaine?
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control of ventricular
arrhythmias local anesthesia |
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What should nurse monitor frequently during administration?
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ECG
blood pressure respiratory status if used as an anesthetic, assess degree of numbness of affected part |
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What should be monitored during prolonged therapy?
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serum electrolyte levels
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IM administration may cause increased?
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CPK levels
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Therapeutic lidocaine levels range from?
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1.5 to 5 mcg/ml
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Signs and symptoms of toxicity include?
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confusion
excitation blurred or double vision nausea vomiting ringing in ears tremors twitching seizures difficulty breathing severe dizziness or fainting unusually slow heart rate |
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If symptoms of overdose occur, what should nurse do?
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stop infusion and monitor patient closely
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Lidocaine is readily absorbable through?
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mucous membranes
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Inadvertent overdosage of lidocaine jelly and spray has resulted in patient harm or death from?
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neurologic and or cardiac toxicity
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Before using throat spray, ensure _____ _____ is intact before allowing patientn to drink or eat
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gag reflex
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Administer IM injection into which muscle while frequently aspirating to prevent IV injection.
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deltoid
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What percentage is only used for direct IV injection?
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1% and 2%
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Help patient ambulate and transfer, as lidocaine can cause?
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drowsiness and dizziness
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After administering lidocaine in thickest part of thigh or deltoid muscle, inject, hold in place for 10 seconds, then what?
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massage area for 10 seconds
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Lidocaine patch may be cut...cover most painful area...remove patch if?
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irritation or burning occurs
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Effectiveness of lidocaine can be demonstrated by?
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decrease in ventricular
arrhythmias local anesthesia |
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<Lidocaine
Premix: 1 Gm in 250 cc D5W Dosage ordered: 2 mg/minute How many cc/min?> |
on tape
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