WK5-quiz-Nurs6521-Answers.docx

Hypotension or bradycardia and substantially alter

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hypotension or bradycardia, and substantially alter level of consciousness. Question 10 1 out of 1 points A patient is suffering from acute inhalant intoxication. The priority nursing intervention will be to Response Patients suffering from acute inhalant intoxication may experience
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Feedback : hypoxia from CNS depression; therefore, the patient will most likely be receiving oxygen therapy. Epinephrine is contraindicated because of possible cardiac stimulation. Arrhythmias may occur. Monitoring blood pressure and pulse is important; however, the patient could be short of breath due to the hypoxia. Therefore, monitoring respirations would be the priority. Nausea and vomiting could be present, and the nurse would need to provide the patient with an emesis basin, but it would not be the most important nursing intervention. Question 11 1 out of 1 points A patient has a history of tonic-clonic seizures that have been successfully treated with phenytoin (Dilantin) for several years. Phenytoin achieves a therapeutic effect by Response Feedback : Phenytoin reversibly binds to sodium channels while they are in the inactive state. This binding delays the return of the channel to an active state. Because sodium can enter the cell to initiate an action potential only when the channels are active, the time between action potentials is greatly lengthened, the neurons cannot fire at an excessive rate, and excessive muscle contractions that occur in grand mal-type seizures are prevented. Phenytoin does not directly affect the function of calcium channels or levels of GABA and glutamate. Question 12 1 out of 1 points A 20-year-old man has begun treatment of the psychotic symptoms of schizophrenia using olanzapine (Zyprexa). Which of the following symptoms would be categorized as a negative symptom of schizophrenia? Response Feedback : The negative symptoms of schizophrenia include flat or blunted emotions, lack of pleasure or interest in things (anhedonia), and limited speech. The positive symptoms of schizophrenia, and the most recognizable symptoms, include delusions (e.g., paranoia or distorted perceptions of other people's intentions) and hallucinations. Question 13 1 out of 1 points A patient has been admitted to the ICU because of multiple traumas due to a motor vehicle accident. The physician has ordered propofol (Diprivan) to be used for maintenance of sedation. Before administration of propofol, a priority assessment by the nurse would be to check for a history of Response Feedback : Propofol is relatively contraindicated in patients with a history of seizure disorders because they are at risk of developing convulsions during the recovery phase. This drug should be used with caution in patients with low blood pressure because it can aggravate this
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condition. Also, it should be used with caution in patients with increased intraocular pressure because it can cause a substantial reduction in cerebral perfusion. Because disorders of lipid metabolism
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  • Fall '13
  • adverse effects, Benzodiazepine

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