A client with a seizure disorder is seen at the clinic for a follow-up visit and a prescription renewal for phenytoin. Which assessment finding warrants immediate intervention by the nurse?
Blood pressure 100/78 mm Hg.
Double vision.
Puffy, bleeding gums.
Chronic insomnia.
The Correct Answer is B
Choice A reason: This is not an assessment finding that warrants immediate intervention by the nurse. Blood pressure 100/78 mm Hg is within the normal range for an adult, and it does not indicate any adverse effect of phenytoin. The nurse should monitor the blood pressure for any changes, but it is not a priority.
Choice B reason: This is an assessment finding that warrants immediate intervention by the nurse. Double vision, or diplopia, is a sign of phenytoin toxicity, which can occur due to overdose, drug interactions, or impaired metabolism. Double vision can impair the client's vision, balance, and coordination, and increase the risk of falls and injuries. The nurse should stop the phenytoin infusion, if applicable, and notify the healthcare provider. The nurse should also check the serum phenytoin level and other vital signs, and prepare to administer an antidote, such as fosphenytoin, if indicated.
Choice C reason: This is not an assessment finding that warrants immediate intervention by the nurse. Puffy, bleeding gums are a common side effect of phenytoin, which can cause gingival hyperplasia, or overgrowth of the gum tissue. Puffy, bleeding gums are not life-threatening, but they can affect the client's oral hygiene and appearance. The nurse should instruct the client to brush and floss the teeth regularly, and to visit a dentist for dental care.
Choice D reason: This is not an assessment finding that warrants immediate intervention by the nurse. Chronic insomnia is not a common or serious side effect of phenytoin, which is an anticonvulsant that can have sedative effects. Chronic insomnia may be caused by other factors, such as stress, pain, or caffeine intake. The nurse should assess the client's sleep pattern and quality, and provide education and counseling on sleep hygiene and relaxation techniques.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Notifying the healthcare provider of the carbamazepine level is the most appropriate action for the nurse to take. Carbamazepine is an anticonvulsant drug that requires close monitoring of its serum levels to ensure therapeutic and safe effects. The normal reference range for carbamazepine is 4 to 12 mcg/mL or 16.9 to 50.8 mmol/L. A level of 84 mcg/L (35.6 mmol/L) is significantly higher than the upper limit and indicates toxicity. The nurse should report this finding to the prescriber immediately and hold the dose until further instructions.
Choice B reason: Administering the carbamazepine as prescribed is not the most appropriate action for the nurse to take. Giving the evening dose of carbamazepine when the morning level is already toxic can worsen the client's condition and cause serious adverse effects, such as confusion, drowsiness, ataxia, nystagmus, or coma. The nurse should not administer the medication without consulting the prescriber.
Choice C reason: Assessing the client for side effects of carbamazepine is an important action for the nurse to take, but it is not the most appropriate one. The nurse should assess the client for signs and symptoms of carbamazepine toxicity, such as nausea, vomiting, headache, blurred vision, or seizures. However, this action alone is not sufficient to address the problem. The nurse should also notify the prescriber and withhold the dose.
Choice D reason: Withholding this dose of the carbamazepine is a necessary action for the nurse to take, but it is not the most appropriate one. The nurse should not give the evening dose of carbamazepine when the morning level is already toxic, as this can increase the risk of complications. However, this action alone is not enough to resolve the issue. The nurse should also notify the prescriber and follow the appropriate interventions.
Correct Answer is C
Explanation
Choice A reason: Administering both prescribed medications as scheduled is not the appropriate action in this situation. The client's total calcium level is above the normal range of 9 to 10.5 mg/dL (2.25 to 2.62 mmol/L), indicating hypercalcemia. Hypercalcemia is a serious condition that can cause nausea, vomiting, constipation, confusion, kidney stones, and cardiac arrhythmias. Giving more calcitriol and calcium carbonate would worsen the client's condition and increase the risk of complications.
Choice B reason: Holding the calcium carbonate, but administering the calcitriol as scheduled is not the appropriate action in this situation. Calcium carbonate is a supplement that provides extra calcium to the body. Calcitriol is a synthetic form of vitamin D that helps the body absorb calcium from the intestines and kidneys. Both medications can increase the blood calcium level and cause hypercalcemia. The nurse should not give either medication without consulting the healthcare provider.
Choice C reason: Holding both medications until contacting the healthcare provider is the best action in this situation. The nurse should recognize that the client's total calcium level is dangerously high and report it to the healthcare provider as soon as possible. The healthcare provider may order to stop or adjust the doses of calcitriol and calcium carbonate, and prescribe other treatments to lower the blood calcium level, such as intravenous fluids, diuretics, or bisphosphonates.
Choice D reason: Holding the calcitriol, but administering the calcium carbonate as scheduled is not the appropriate action in this situation. Calcium carbonate is a supplement that provides extra calcium to the body. Giving more calcium carbonate to a client with hypercalcemia would increase the blood calcium level even more and cause more harm. The nurse should not give any medication that can raise the blood calcium level without consulting the healthcare provider.
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