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Question 191 out of 1 pointsA nurse is providing care for a patient who suffered extensive burns to his extremities during a recent industrial accident. Topical lidocaine gel has been ordered to be applied to the surfaces of all his burns in order to achieve adequate pain control. When considering this order, the nurse should be aware thatResponseFeedback:Applying lidocaine preparations to severely traumatized mucosa (large skin abrasions, eczema, and burns) can increase its absorption, which in turn increases the risk of systemic toxicity. Intravenous lidocaine is notnormally used for analgesia. The destruction of nerve endings in a burn site does not mitigate the need for topical pain control and lidocaine
does not need to be potentiated with another anesthetic.Question 201 out of 1 pointsA patient has been hospitalized for treatment of substance abuse after being arrestedand jailed for the past 24 hours. The patient is experiencing severe muscle and abdominal cramps, seizures, and acute psychosis due to abrupt withdrawal. Which ofthe following drug classes is the most likely cause of these severe and potentially fatal withdrawal symptoms?ResponseFeedback:Abrupt withdrawal from long-term use of sedative–hypnotic drugs shouldnever be attempted because withdrawal symptoms are serious and potentially fatal. Withdrawal symptoms include agitation, dysphoria, insomnia, vomiting, diarrhea, ataxia, hallucinations, acute psychosis, muscle and abdominal cramps, anorexia, and seizures. These symptoms may occur 12 to 72 hours after the last use of the drug and may last up to 14 days. The abrupt withdrawal of benzodiazepines, opioids, and amphetamines does not cause such severe and potentially fatal withdrawal symptoms.Question 211 out of 1 pointsA 39-year-old patient who is having trouble sleeping is beginning drug treatment with zaleplon (Sonata). The nurse will be sure to ask the patient if she is takingResponseFeedback:The nurse will assess for cimetidine use. Cimetidine greatly increases the level of circulating zaleplon and could cause toxic effects in the patient. Secobarbital is a barbiturate, and oxycodone and meperidine are narcotics that would not be used with lorazepam because the combinations may depress respiratory drive, create severe hypotension or bradycardia, and substantially alter level of consciousness.Question 221 out of 1 pointsMorphine has been prescribed for a 28-year-old man with severe pain due to a back injury. The nurse will advise the patient to avoidResponseFeedback:The nurse should advise the patient to avoid alcohol and any other CNSdepressants while taking morphine. These combinations can cause serious respiratory depression and sedation. Vitamin C, fatty foods, and dairy products are not known to interact with morphine.