Questions and Answers
What is the class of Lidocaine?
Which of the following are brand names for Lidocaine? (Select all that apply)
What is the mechanism of action (MOA) of Lidocaine?
Lidocaine blocks both the initiation and conduction of nerve impulses by decreasing ionic flux through the neuronal membrane.
What are the indications for Lidocaine?
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What are the absolute contraindications for using Lidocaine?
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What is the dosage for the Lidocaine patch?
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What is a serious side effect of Lidocaine?
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Patients should avoid injury to body areas that are numbed by _____.
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Match the following clinical teachings with their precautions:
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Study Notes
Lidocaine Patch Overview
- Class: Topical analgesic used for localized pain relief
- Brand names include Lidoderm, Xylocaine, Topicaine, Burnamycin, Zilactin L, and Burn-o-Jel
Mechanism of Action (MOA)
- Lidocaine blocks initiation and conduction of nerve impulses
- Decreases ionic flux through neuronal membranes, leading to local anesthesia
- Does not produce complete sensory block, allowing for some sensation to remain
Indications
- Primarily used for local anesthesia
- Effective for postherpetic neuralgia, a pain condition following shingles
Abs Contraindications
- Contraindicated in individuals with hypersensitivity to amide-type local anesthetics or any ingredients in the formulation
Dosage Guidelines
- Recommended dosage is a single topical application of up to 5 g of 5% ointment, equivalent to a 6-inch length from the tube
- Maximum daily dose is 17-20 g, translating to 850-1000 mg of lidocaine
- For postherpetic neuralgia, apply a maximum of 3 patches topically only once for up to 12 hours within a 24-hour period
Serious Side Effects
- Potential severe side effect includes cardiac arrest, highlighting the need for careful monitoring
Clinical Teachings
- Caution patients to avoid any injury to areas numbed by lidocaine until sensation returns
- Advise against scratching, rubbing, or exposing treated areas to extreme temperatures during the numbing period
- Emphasize the importance of not applying to broken or irritated skin
- Instruct patients to report any signs of lidocaine toxicity, seizures, breathing difficulties, coma, or cardiac dysrhythmias immediately
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Description
Test your knowledge of Lidocaine patches with these flashcards. Covering terminology, brand names, and mechanisms of action, this quiz will enhance your understanding of this topical analgesic. Perfect for students in pharmacology or healthcare-related fields.
