L2-1530-E3 Flashcards
The nurse is performing a medication history on a patient who reports using phentermine HCl (Suprenza) 15 mg/day for the past 3 months as an appetite suppressant. The nurse will contact the patient’s provider to discuss
a. changing the medication to phentermine-topiramate (Qsymia).
b. increasing the dose to 37.5 mg/day since tolerance has likely occurred.
c. initiating a slow taper of the phentermine.
d. stopping the drug immediately since long-term use is not recommended.
c. initiating a slow taper of the phentermine.
The nurse should discuss a gradual taper of the medication with the provider. Patients using anorexiants should not stop taking them abruptly because depression and withdrawal symptoms may occur. Phenterminetopiramate is recommended for short-term use only. Patients should not use these medications longer than 12 weeks, so increasing the dose is not indicated.
A patient reports having recurring headaches described as 1 to 2 headaches per day for several weeks. The nurse understands that these headaches are most likely descriptive of which type of headache?
a. Cluster headache
b. Migraine headache
c. Simple headache
d. Tension headache
a. Cluster headache
Cluster headaches reoccur 1 to 3 times daily in a period lasting from approximately 2 weeks to 3 months. Migraine headaches are severe and characterized by an aura prior to the headache. Tension headaches are related to stress.
The nurse is caring for a patient who has migraine headaches. The patient reports having these headaches more frequently. Which is an appropriate recommendation for this patient?
a. “Avoid chocolate and caffeine.”
b. “Engage in strenuous exercise.”
c. “Have a glass of red wine with dinner.”
d. “Take ibuprofen prophylactically.”
a. “Avoid chocolate and caffeine.”
Triggering factors for migraine headache include foods such as chocolate, caffeine, and red wine. Intense physical exertion can trigger migraines. Prophylactic ibuprofen is not indicated.
The nurse is caring for a 7-year-old child who has difficulty concentrating and completing tasks and who cannot seem to sit still. Which diagnostic test may be ordered to assist with a diagnosis of attention deficit/hyperactivity disorder (ADHD) in this child?
a. Computerized tomography (CT) of the head
b. Electrocardiogram (ECG)
c. Electroencephalogram (EEG)
d. Magnetic resonance imaging (MRI) of the brain
c. Electroencephalogram (EEG)
A child with ADHD may have abnormal EEG findings. CT, MRI, and ECG tests are not diagnostic for ADHD.
A patient has been using an amphetamine drug as an anorexiant for several weeks and asks the nurse about long-term adverse effects of this type of medication. The nurse will explain to the patient that these drugs
a. can cause cardiac dysrhythmias.
b. contribute to the development of narcolepsy.
c. do not have severe effects when used properly.
d. will cause orthostatic hypotension.
a. can cause cardiac dysrhythmias.
Amphetamines can cause adverse effects in the central nervous, endocrine, gastrointestinal, and cardiovascular
systems even when used as directed. Cardiac dysrhythmias can occur with continued use. Amphetamines do not cause narcolepsy or hypotension.
The nurse is teaching a child and a parent about taking methylphenidate (Ritalin) to treat attention deficit/hyperactivity
disorder (ADHD). Which statement by the parent indicates understanding of the teaching?
a. “I should give this drug to my child at bedtime.”
b. “My child should avoid products containing caffeine.”
c. “The drug should be stopped immediately if my child develops aggression.”
d. “We should monitor my child’s weight since weight gain is common.”
b. “My child should avoid products containing caffeine.”
Methylphenidate is a stimulant, so other stimulants such as caffeine should be avoided because a high plasma caffeine level can be fatal. The medication should be taken in the morning. Patients should be taught not to stop the drug abruptly to avoid withdrawal symptoms. Weight loss is common.
The parent of a child who is taking amphetamine (Adderall) to treat attention deficit/hyperactivity disorder (ADHD) asks the provider to recommend an over-the-counter medication to treat a cold. What will the nurse
tell the parent?
a. “Avoid any products containing pseudoephedrine or caffeine.”
b. “Never give over-the-counter medications with Adderall.”
c. “Sudafed is a safe and effective decongestant.”
d. “Use any over-the-counter medication from the local pharmacy.”
a. “Avoid any products containing pseudoephedrine or caffeine.”
Adderall is a stimulant, so other stimulants, such as caffeine and pseudoephedrine, should be avoided because a high plasma caffeine level can be fatal.
The nurse is checking an 8-year-old child who has attention deficit/hyperactivity disorder (ADHD) into a clinic for an annual well-child visit. The child takes methylphenidate HCl (Ritalin). Which assessments are especially important for this child?
a. Heart rate, respiratory rate, and oxygen saturation
b. Height, weight, and blood pressure
c. Measures of fine- and gross-motor development
d. Nausea, vomiting, and gastrointestinal upset
b. Height, weight, and blood pressure
Methylphenidate may cause growth suppression, so the child’s height and weight should be assessed.
Methylphenidate may also increase blood pressure, so the nurse should pay careful attention to blood
pressure.
The parent of an adolescent who has taken methylphenidate 20 mg/day for 6 months for attention deficit/hyperactivity disorder (ADHD) brings the child to clinic for evaluation of a recent onset of nausea, vomiting, and headaches. The parent expresses concern that the child seems less focused and more hyperactive than before. What will the nurse do next?
a. Ask the child whether the drug is being taken as prescribed.
b. Contact the provider to discuss increasing the dose to 30 mg/day.
c. Recommend taking the drug with meals to reduce gastrointestinal side effects.
d. Report signs of drug toxicity to the patient’s provider.
a. Ask the child whether the drug is being taken as prescribed.
Nausea, vomiting, and headaches can occur with drug withdrawal, along with a recurrence of symptoms. The nurse should ask the child about drug compliance. Methylphenidate should be taken 30 to 45 minutes before meals, not with meals.
The nurse is teaching a parent about methylphenidate (Ritalin) to treat attention deficit/hyperactivity disorder (ADHD). Which statement by the parent indicates understanding of the teaching?
a. “I should consult a pharmacist when giving my child OTC medications.”
b. “I will only give my child diet soft drinks while administering this medication.”
c. “Medication therapy means that behavioral therapy will not be necessary.”
d. “Weight gain is a common side effect of this medication.”
a. “I should consult a pharmacist when giving my child OTC medications.”
Since many OTC medications contain stimulants, parents should consult a pharmacist or the provider before giving them with methylphenidate. Diet soft drinks often contain caffeine, a stimulant, and should be avoided with methylphenidate use. Behavioral therapy should still be an essential part of the treatment for ADHD.
Weight loss is common.
The parent of an obese 10-year-old child asks the nurse about medications to aid in weight loss. Which response
by the nurse is correct?
a. “Anorexiants are often used to ‘jump start’ a weight loss regimen in children.”
b. “Children are able to use over-the-counter anorexiants on a long-term basis.”
c. “Children under 12 years of age should not use weight loss drugs.”
d. “Side effects of anorexiants occur less often in children.”
c. “Children under 12 years of age should not use weight loss drugs.”
Anorexiants should not be given to children under age 12 years.
The nurse is working in a neonatal intensive care unit and is caring for an infant who is experiencing multiple periods of apnea and bradycardia. Which drug will the nurse expect to administer?
a. Albuterol (Proventil)
b. Caffeine (Cafcit)
c. Doxapram (Dopram)
d. Methylphenidate (Ritalin)
b. Caffeine (Cafcit)
Caffeine is given to newborns that are experiencing apnea spells. The other drugs are not used for this purpose.
A college-age student is brought to the emergency department by friends after consuming NoDoz tablets
along with several cups of coffee and a few energy drinks. The patient is complaining of nausea and diarrhea and appears restless. The nurse understands that
a. arrhythmias and convulsions may occur.
b. caffeine dependence does not occur.
c. effects of the substances will wear off shortly.
d. severe adverse effects do not occur.
a. arrhythmias and convulsions may occur.
Caffeine and other stimulants can cause cardiac arrhythmias and seizures. Caffeine dependence may occur.
A patient is brought to the emergency department with a drug overdose causing respiratory depression. Which drug will the nurse expect to administer?
a. Albuterol (Proventil)
b. Caffeine (Cafcit)
c. Doxapram (Dopram)
d. Methylphenidate (Ritalin)
c. Doxapram (Dopram)
Doxapram is given to treat respiratory depression caused by drug overdose.
A patient reports difficulty staying awake during the daytime in spite of getting adequate sleep every night.
Which medication will the nurse expect the provider to order for this patient?
a. Caffeine (NoDoz)
b. Methylphenidate (Ritalin)
c. Modafinil (Provigil)
d. Theophylline
c. Modafinil (Provigil)
Modafinil is given to treat narcolepsy.
A patient describes having vivid dreams to the nurse. The nurse understands that these occur during which
stage of sleep?
a. Rapid eye movement (REM) sleep
b. Stage 2 nonrapid eye movement sleep
c. Stage 3 nonrapid eye movement sleep
d. Stage 4 nonrapid eye movement sleep
a. Rapid eye movement (REM) sleep
Vivid dreams occur during REM sleep.
Children who experience nightmares have these during which stage of sleep?
a. Early morning sleep
b. Nonrapid eye movement sleep
c. Rapid eye movement sleep
d. Sleep induction
b. Nonrapid eye movement sleep
Nightmares that occur in children take place during NREM sleep.
A patient reports difficulty falling asleep most nights and is constantly fatigued. The patient does not want to
take medications to help with sleep. What non pharmacologic measure will the nurse recommend?
a. “Exercise in the evening to promote bedtime fatigue.”
b. “Get out of bed at the same time each morning.”
c. “Have a glass of wine at bedtime to help you relax.”
d. “Take daytime naps to minimize daytime fatigue.”
b. “Get out of bed at the same time each morning.”
To promote sleep, patients should be advised to arise at the same time each morning to establish a routine. Patients should avoid strenuous exercise before bedtime. Patients should not consume alcohol 6 hours before bedtime. Patients should not take daytime naps.
The nurse is caring for a patient who reports being able to fall asleep but has difficulty staying asleep. The
nurse will contact the provider to obtain an order for which medication?
a. Butabarbital (Butisol)
b. Flurazepam (Dalmane)
c. Secobarbital (Seconal)
d. Temazepam (Restoril)
a. Butabarbital (Butisol)
Butabarbital is an intermediate-acting barbiturate and is useful as a sleep sustainer to maintain long periods of sleep. They have an onset of 1 hour, so are not useful for those who have trouble falling asleep. Flurazepam and temazepam are benzodiazepines and are used to induce sleep. Secobarbital is used for preoperative sedation.
The nurse is teaching a patient who will begin taking butabarbital (Butisol). What information will the nurse
include when teaching this patient?
a. “Avoid alcohol while taking this drug.”
b. “This drug may be used long-term.”
c. “This medication will take effect immediately.”
d. “You will not experience a hangover effect.”
a. “Avoid alcohol while taking this drug.”
Patients who are taking barbiturates should avoid alcohol. Barbiturates are for short-term use. Butabarbital
has a sleep onset time of 1 hour, so it will not help patients fall asleep. Patients who take barbiturates frequently experience a hangover effect.
The nurse is caring for a young adult patient who is receiving a first dose of flurazepam (Dalmane) as a sedative- hypnotic medication. What intervention will be included in the nurse’s plan of care for this patient?
a. Instituting a bed alarm system to prevent falls
b. Reassuring the patient that nightmares are not a usual effect
c. Reporting a urine output greater than 1500 mL/day
d. Teaching the patient that this drug may be used for 6 to 8 weeks
a. Instituting a bed alarm system to prevent falls
The nurse should use a bed alarm for older patients and younger patients receiving a hypnotic for the first
time. Patients may experience vivid dreams and nightmares. Urine output should be greater than 1500 mL/day, so this does not warrant reporting. This drug should be used short-term.
An older adult has difficulty falling asleep. The nurse understands that which sedative hypnotic is appropriate for this patient?
a. Butabarbital (Butisol)
b. Flurazepam (Dalmane)
c. Secobarbital (Seconal)
d. Temazepam (Restoril)
d. Temazepam (Restoril)
Short- to intermediate-acting benzodiazepines such as temazepam are recommended for older adults and are considered safer than barbiturates.
A patient asks the nurse about taking over-the-counter sleeping aids. The nurse will tell the patient that the
active ingredient in these products is often a(n)
a. antiemetic.
b. antihistamine.
c. barbiturate.
d. benzodiazepine.
b. antihistamine.
The primary ingredient in OTC sleep aids is an antihistamine such as diphenhydramine, not barbiturates or benzodiazepines.
An older adult patient reports frequent nighttime awakening because of arthritis pain and asks the nurse about taking an over-the-counter product to help with this problem. The nurse will recommend that the patient discuss which medication with the provider?
a. Ibuprofen (Motrin)
b. Nytol
c. Sominex
d. Tylenol PM
d. Tylenol PM
The main sleep problem experienced by older adults is frequent nighttime awakening. To alleviate pain and aid sleep, the OTC drug Tylenol PM, which contains diphenhydramine and acetaminophen may be taken. Ibuprofen occasionally helps if it can alleviate the discomfort that hinders sleep.
A patient who has been taking butabarbital (Butisol) for several weeks reports being drowsy and having difficulty performing tasks at work most mornings. The nurse suspects that which drug effects have occurred?
a. Dependence
b. Hangover
c. Tolerance
d. Withdrawal
b. Hangover
Intermediate-acting hypnotics, such as butabarbital, are useful for sustaining sleep, but patients often experience
residual drowsiness in the morning, or hangover. Drug dependence occurs when patients develop a need
for the drug. Tolerance refers to a reduced drug effect requiring larger amounts of drug to get the desired effect. Withdrawal occurs when stopping the drug causes symptoms that can only be alleviated by taking the drug.
The nurse is providing teaching for a patient who will begin taking zolpidem tartrate (Ambien) 10 mg at bedtime as a sleep aid. Which statement by the patient indicates understanding of the teaching?
a. “I should take this medication with food to avoid stomach upset.”
b. “I will take this medication within 30 minutes of bedtime.”
c. “If this medication is not effective, I may increase the dose to 15 mg.”
d. “Tolerance and drug dependence do not occur with this medication.”
b. “I will take this medication within 30 minutes of bedtime.”
Zolpidem is a nonbenzodiazepine sleep aid. It should be taken 30 minutes before desired sleep. Food decreases the absorption, so it should be taken on an empty stomach. The maximum dose is 10 mg. Tolerance and dependence may occur.
A patient who has been taking a benzodiazepine as a sleep aid for several months wishes to stop taking the medication. The nurse will suggest that the patient taper the dose gradually to avoid which effect?
a. Depression
b. Hangover
c. Hypnotic rebound
d. Withdrawal
d. Withdrawal
Benzodiazepines cause tolerance which means that abrupt cessation can result in withdrawal symptoms such
as tremors and muscle twitching. A hangover is residual drowsiness that occurs the day after taking a hypnotic.
The nurse is preparing a patient for surgery. The patient received a hypnotic medication the night prior and the nurse is administering midazolam (Versed) and atropine. The patient asks why all of these medications are necessary. The nurse will tell the patient that they are given for which reason?
a. To decrease the amount of general anesthesia needed
b. To minimize post-operative drowsiness
c. To prolong the anesthetized state
d. To speed up anesthesia induction
a. To decrease the amount of general anesthesia needed
Balanced anesthesia includes giving a hypnotic the night prior to surgery, premedication with an opioid analgesic
or benzodiazepine plus an anticholinergic, and then a short-acting barbiturate, an inhaled gas, and a muscle relaxant. One effect of this is to decrease the amount of general anesthetic needed. It may reduce postoperative
nausea and vomiting, but does not decrease drowsiness. It does not affect the duration of anesthesia, which is dependent on the length of time the inhaled gas is given, or the rate of induction.
During balanced anesthesia, which type of medication is given while the surgery is performed?
a. Anticholinergics
b. Benzodiazepines
c. Hypnotics
d. Inhaled anesthetic
d. Inhaled anesthetic
An inhaled anesthetic is given to induce anesthesia and is maintained throughout the surgical procedure. The
other medications are given prior to anesthesia induction.
The nurse performs a preoperative assessment on a patient and asks about alcohol use. The patient asks
why this information is important. The nurse will explain that patients who consume increased amounts of alcohol
a. may have a prolonged postoperative recovery time.
b. may not be eligible for surgery.
c. may not receive inhaled gases for anesthesia.
d. may require changes in anesthesia drug doses.
d. may require changes in anesthesia drug doses.
The type and amount of anesthetics may need to be adjusted if patients consume large amounts of alcohol as
well as for those who smoke, who are pregnant, or who are obese. These questions are asked prior to surgery so providers can plan for this.
The nurse is caring for a patient in the post-anesthesia care unit and notes that the patient received isoflurane (Forane) to induce anesthesia. When will the nurse expect the patient to recover consciousness?
a. Immediately
b. In 15 to 30 minutes
c. In 1 hour
d. In hours
c. In 1 hour
Upon discontinuation of isoflurane, recovery of consciousness usually occurs in 1 hour.
The nurse is caring for a patient in the post-anesthesia care unit who has received a spinal anesthetic. Which action will the nurse perform?
a. Ambulate the patient as soon as consciousness returns.
b. Elevate the head of the bed to a semi-Fowler’s position.
c. Have the patient lay flat for 6 to 8 hours after the surgery.
d. Turn the patient from side to side every 15 minutes.
c. Have the patient lay flat for 6 to 8 hours after the surgery.
Patients who have had spinal anesthesia should remain flat for 6 to 8 hours to decrease the likelihood of losing
spinal fluid, causing a headache.
A patient is diagnosed with epilepsy and asks the nurse what may have caused this condition. The nurse explains
that epilepsy is most often
a. caused by head trauma.
b. idiopathic in origin.
c. linked to a stroke.
d. related to brain anoxia.
b. idiopathic in origin.
Of all seizure cases, 75% are primary, or idiopathic, with no known cause. The remaining are secondary and may be related to head trauma, stroke, or anoxic events.
A patient who has epilepsy will begin an anticonvulsant medication. The patient asks the nurse how long the
medication will be necessary. How will the nurse respond?
a. “The medication is usually taken for a lifetime.”
b. “The medication will be given until you are seizure-free.”
c. “You will need to take the medication for 3 to 5 years.”
d. “You will take the medication as needed for seizure activity.”
a. “The medication is usually taken for a lifetime.”
Anticonvulsants are given to prevent seizures and are usually taken throughout the patient’s lifetime. Stopping
the medication will lead to recurrence of seizures in most patients. Some patients may attempt to stop taking
the medications after 3 to 5 years of no seizure activity. Anticonvulsants are not given as needed.
The nurse is providing teaching to the parents of a 5-year-old child who will begin taking phenytoin (Dilantin). What information will the nurse include when teaching these parents about their child’s medication?
a. “Drug interactions are uncommon with phenytoin.”
b. “There are very few side effects associated with this drug.”
c. “The therapeutic range of phenytoin is between 15 and 30 mcg/mL.”
d. “Your child may need a higher dose than expected.”
d. “Your child may need a higher dose than expected.”
Drug dosage for phenytoin is age-related and children, who have a rapid metabolism, may need higher doses than those used for newborns and adults. Phenytoin has many drug interactions and many side effects. The therapeutic range is 10-20 mcg/mL.
The nurse is caring for a patient who has a seizure disorder. The nurse notes that the patient has reddened gums that bleed when oral care is given. The nurse recognizes this finding as
a. an adverse effect of the phenytoin.
b. a drug interaction with aspirin.
c. a symptom of hepatotoxicity.
d. a sign of poor self-care.
a. an adverse effect of the phenytoin.
Hydantoins commonly cause gingival hyperplasia, which causes overgrowth of reddened gum tissue that
bleeds easily. It is not a sign of a drug interaction or a symptom of hepatotoxicity. It does not indicate a lack of
self-care.
The nurse is preparing to administer phenytoin (Dilantin) to a patient who has a seizure disorder. The patient appears drowsy, and the nurse notes that the last random serum drug level was 18 mcg/mL. What action will the nurse take?
a. Administer the dose since the patient is not toxic.
b. Contact the provider to discuss decreasing the phenytoin dose.
c. Give the drug and monitor closely for adverse effects.
d. Report drug toxicity to the providers.
a. Administer the dose since the patient is not toxic.
Drowsiness is a common side effect of phenytoin and is not cause for alarm. The patient’s drug level is normal, since 10-20 mcg/mL is the therapeutic range. The nurse should administer the dose. It is not necessary to decrease the dose or monitor the patient more closely than usual.
The nurse is preparing to administer phenytoin to an 80-year-old patient and notes the following order: IVP
phenytoin 50 mg. The nurse will perform which action?
a. Administer the undiluted drug through a Y-tube over two minutes.
b. Contact the provider to question the route and the dose.
c. Dilute the drug in dextrose solution and infuse over 15 to 20 minutes.
d. Request an order to administer the drug intramuscularly.
a. Administer the undiluted drug through a Y-tube over two minutes.
Intravenous phenytoin should be administered undiluted through a 3-way stopcock or Y-tubing. In older patients
it should be infused at a rate of 25 mcg/min. The dose and the route are appropriate. Phenytoin will precipitate
in dextrose solution. Intramuscular injection is very irritating to tissues and is not used.
The nurse is preparing to assist with blood collection on a newly admitted patient who has been taking phenytoin for several years. The provider has ordered a complete blood count and liver function tests. Which other blood test will the nurse discuss with the provider?
a. Blood glucose
b. Coagulation studies
c. Renal function tests
d. Serum electrolytes
a. Patients who have taken hydantoins for long periods might have an elevated blood sugar. The nurse should
discuss this test with the provider.
A patient who takes phenytoin reports regular alcohol consumption. The nurse might expect a serum phenytoin
level in this patient to be in which range?
a. 5 to 10 mcg/mL
b. 10 to 20 mcg/mL
c. 20 to 30 mcg/mL
d. 30 to 50 mcg/mL
a. 5 to 10 mcg/mL
Chronic ingestion of alcohol increases hydantoin metabolism, which would decrease serum drug levels. The therapeutic range is 10 to 20 mcg/mL, so a level lower than this may be expected in patients who consume alcohol
regularly.
A patient has recently begun taking phenytoin (Dilantin) for a seizure disorder. The nurse notes a reddishbrown
color to the patient’s urine. Which action will the nurse take?
a. Ask the provider to order a serum drug level.
b. Reassure the patient that this is a harmless side effect.
c. Report possible thrombocytopenia to the provider.
d. Request an order for a urinalysis and creatinine clearance.
b. Reassure the patient that this is a harmless side effect.
Reddish-brown urine is a harmless side effect of phenytoin. The nurse should reassure the patient. It is not
necessary to order a serum drug level or renal function studies. It is not a symptom of thrombocytopenia.
A female patient who takes phenytoin for epilepsy becomes pregnant. The nurse will notify the patient’s
provider and will anticipate that the provider will take which action?
a. Add valproic acid (Depakote) for improved seizure control.
b. Change the medication to phenobarbital (Luminal).
c. Closely monitor this patient’s serum phenytoin levels.
d. Discontinue all anticonvulsant medications.
b. Change the medication to phenobarbital (Luminal).
Phenytoin has serious teratogenic effects, so women who are pregnant should not take it. Phenobarbital is typically used because possible teratogenic effects are less pronounced. Teratogenicity increases with multiple anticonvulsants.
The nurse is caring for a patient who has been diagnosed with petit mal seizures. The nurse will anticipate teaching this patient about which antiepileptic medication?
a. Carbamazepine (Tegretol)
b. Ethosuximide (Zarontin)
c. Phenobarbital (Luminal)
d. Phenytoin (Dilantin)
b. Ethosuximide (Zarontin)
Ethosuximide is used to treat petit mal seizures. The other drugs are not used to treat petit mal seizures.
An intubated child is brought to the emergency department while having a seizure that has been progressing for 20 minutes. Which drug will the nurse anticipate administering to this patient?
a. Diazepam (Valium)
b. Phenobarbital (Luminal)
c. Phenytoin (Dilantin)
d. Valproic acid (Depakote)
a. Diazepam (Valium)
Diazepam is given to patients in status epilepticus and is administered IV. The other anticonvulsant medications
do not have a rapid onset and are not used for emergencies.
A patient will begin taking the antiepileptic drug ethosuximide (Zarontin) and asks the nurse whether to take the drug with or without food. The nurse will counsel the patient to take this medication
a. at bedtime.
b. 1 hour before meals.
c. 2 hours after meals.
d. with meals.
d. with meals.
Gastric irritation is common with ethosuximide, so patients should be counseled to take it with food. It is given twice daily.
A patient has recently begun taking carbamazepine (Tegretol) as an adjunct medication to treat refractory seizures. The patient has a serum carbamazepine level of 18 mcg/mL. What action will the nurse take?
a. Ask the patient about usual dietary preferences.
b. Reassure the patient that this is a therapeutic drug level.
c. Report a subtherapeutic drug dose to the provider.
d. Suspect a drug-drug interaction.
a. Ask the patient about usual dietary preferences.
This patient’s carbamazepine level is high. When taken with grapefruit juice, an interaction may occur that causes toxicity. The nurse should question the patient about food and fluid preferences. The therapeutic level is 5 to 12 mcg/mL. This is a toxic level, not subtherapeutic.
The nurse is performing a health history on a patient who is ordered to begin therapy with valproic acid (Depakote) to treat epilepsy. Which aspect of the patient’s medical history will cause the nurse to be concerned?
a. Chronic obstructive pulmonary disease
b. Gastrointestinal disease
c. Liver disease
d. Renal disease
c. Liver disease
Valproic acid can elevate liver enzymes. Patients with a history of liver disease should be monitored closely
while taking this drug.
A woman who is pregnant is taking an anticonvulsant medication to treat a seizure disorder. The nurse will
ensure that the patient takes which dietary supplement toward the end of her pregnancy?
a. Folate (folic acid)
b. Iron
c. Vitamin C
d. Vitamin K
d. Vitamin K
Anticonvulsants act as inhibitors of vitamin K and can contribute to hemorrhage in infants shortly after birth.
Women taking these drugs should receive vitamin K within the last week to 10 days of their pregnancies.
A parent expresses concern that a 5-year-old child may develop epilepsy because the child experienced a febrile seizure at age 18 months. What will the nurse tell this parent?
a. “A child who has had a febrile seizure is considered to have epilepsy.”
b. “A small percentage of children who have febrile seizures develop epilepsy.”
c. “I recommend discussing prophylactic anticonvulsant drugs with the provider.”
d. “Treat fevers aggressively with aspirin and NSAIDs to prevent seizures.”
b. “A small percentage of children who have febrile seizures develop epilepsy.”
Epilepsy develops in 2.5% of children who have one or more febrile seizures. One febrile seizure does not
cause a diagnosis of epilepsy. Prophylactic anticonvulsants are given to high-risk patients. Children should not receive aspirin for fever because of the risk of Reye’s syndrome.
A 25 year-old female patient will begin taking phenytoin for epilepsy. The patient tells the nurse she is taking oral contraceptives (OCPs). Which response will the nurse give?
a. “Continue taking OCPs because phenytoin is not safe during pregnancy.”
b. “You should use a backup method of contraception along with OCPs.”
c. “You should stop taking OCPs because of drug-drug interactions with phenytoin.”
d. “You should take low-dose aspirin while taking these medications to reduce your risk of stroke.”
b. “You should use a backup method of contraception along with OCPs.”
Female patients who take oral contraceptives and anticonvulsants should be advised to use a backup method of contraception because of reduced effectiveness of OCPs. Patients should be cautioned to consult with a provider if considering pregnancy because of the teratogenic effects of anticonvulsants. Patients should not stop taking OCPs and do not need to take precautions against stroke.
The nurse provides teaching for a patient who will begin taking phenytoin. Which statement by the patient indicates understanding of the teaching?
a. “If I develop a rash, I should take diphenhydramine to control the itching.”
b. “If I experience bleeding gums, I should stop taking the medication immediately.”
c. “I may develop diabetes while I am taking this medication.”
d. “I should not be alarmed if my urine turns reddish-brown.”
d. “I should not be alarmed if my urine turns reddish-brown.”
Phenytoin will cause reddish-brown colored urine. Patients should be counseled to report a rash to the provider because it could be a serious adverse reaction. Bleeding gums are common, but patients should never
stop taking anticonvulsants abruptly, or they may develop seizures. Changes in blood glucose may occur but
do not necessarily result in diabetes.
A parent of a child who has been taking valproic acid (Depakote) for several years calls the clinic to report a
recent recurrence of seizures and states that the child is having 3 or 4 seizures per week. The nurse will perform
which action?
a. Ask the parent about to describe the child’s drug regimen.
b. Request an order for a serum valproic acid level.
c. Suggest that the parent take the child to the emergency department.
d. Tell the parent that the provider will increase the child’s dose of Depakote.
a. Ask the parent about to describe the child’s drug regimen.
Questions pertaining to medication adherence are a no-cost, non-invasive way of troubleshooting cause of decreased drug effect. The serum drug level will be assessed next. Children may need changes in doses as they
grow. The child is not in status epilepticus so does not need to go to the emergency department. The dose will
not be increased until the serum drug level is known.
A pregnant woman who is in labor has a blood pressure of 189/110 mm Hg and exhibits muscle contractions followed by jerking of her arms and legs. The nurse will prepare to administer which medication to this patient?
a. Carbamazepine (Tegretol)
b. Diazepam (Valium)
c. Magnesium sulfate
d. Phenobarbital (Luminal)
c. Magnesium sulfate
Magnesium sulfate is used to control seizures during eclampsia.
An older patient exhibits a shuffling gait, lack of facial expression, and tremors at rest. The nurse will expect
the provider to order which medication for this patient?
a. Carbidopa-levodopa (Sinemet)
b. Donepezil (Aricept)
c. Rivastigmine (Exelon)
d. Tacrine (Cognex)
a. Carbidopa-levodopa (Sinemet)
This patient is exhibiting signs of Parkinson’s disease and should be treated with carbidopa-levodopa. The other drugs are used to treat Alzheimer’s disease.
A nursing student asks the nurse to differentiate the pathology of Alzheimer’s disease from that of Parkinson’s
disease. Which description is correct?
a. Alzheimer’s disease involves a possible excess of acetylcholine and neuritic plaques.
b. Alzheimer’s disease is caused by decreased amounts of dopamine and degeneration of cholinergic neurons.
c. Parkinson’s disease is characterized by an imbalance of dopamine and acetylcholine.
d. Parkinson’s disease involves increased dopamine production and decreased acetylcholine.
c. Parkinson’s disease is characterized by an imbalance of dopamine and acetylcholine.
Parkinson’s disease (PD) is characterized by an imbalance of dopamine (DA) and acetylcholine (ACh) caused by
an unexplained degeneration of the dopaminergic neurons allowing the excitatory response of acetylcholine to
exceed the inhibitory response of dopamine. Alzheimer’s disease (AD) may result from decreased ACh, degeneration of cholinergic neurons, and neuritic plaques. Dopamine does not appear to play a role in Alzheimer’s
disease.
The spouse of a patient newly diagnosed with mild, unilateral symptoms of Parkinson’s disease (PD) asks the
nurse what, besides medication, can be done to manage the disease. The nurse will
a. counsel the spouse that parkinsonism is a normal part of the aging process in some people.
b. recommend exercise, nutritional counseling, and group support to help manage the disease.
c. tell the spouse that the disease will not progress if mild symptoms are treated early.
d. tell the spouse that medication therapy can be curative if drugs are begun in time.
b. recommend exercise, nutritional counseling, and group support to help manage the disease.
PD is a progressive disorder. Nonpharmacologic measures can lessen symptoms and help patients and families
cope with the disorder. Although the aging process may contribute to the development of PD, it is not necessarily a normal part of aging. Treatment may slow the progression but does not arrest or cure the disease.
A patient who has Parkinson’s disease is being treated with the anticholinergic medication benztropine (Cogentin).
The nurse will tell the patient that this drug will have which effect?
a. Helping the patient to walk faster
b. Improving mental function
c. Minimizing symptoms of bradykinesia
d. Reducing some of the tremors
d. Reducing some of the tremors
Benztropine is given to reduce rigidity and some of the tremors. It does not enhance walking or reduce
bradykinesia or improve mental function.
The nurse is preparing to administer a first dose of benztropine (Cogentin) to a patient diagnosed with
parkinsonism. The nurse would notify the patient’s provider if the patient had a history of which condition?
a. Asthma
b. Glaucoma
c. Hypertension
d. Irritable bowel disease
b. Glaucoma
Patients with a history of glaucoma should not take anticholinergic medications. Anticholinergics are not contraindicated in patients who have asthma, hypertension, or irritable bowel disease.
The nurse is caring for a patient who is receiving trihexyphenidyl (Artane) to treat parkinsonism. The patient reports having a dry mouth, and the nurse notes a urine output of 300 mL in the past 8 hours. Which action will the nurse perform?
a. Encourage increased oral fluids.
b. Obtain an order for intravenous fluids.
c. Report the urine output to the provider.
d. Request an order for renal function tests.
c. Report the urine output to the provider.
Urinary retention can occur with anticholinergic medications. Dry mouth is a harmless side effect. The nurse should report the lower than expected urine output to the provider. Increasing fluid intake will not increase
urine output in the patient with urinary retention. Renal function tests are not indicated since this is a neuromuscular
problem of the bladder caused by the medication.