FIRST PUBLISH OCTOBER 2024
NU129 Prep U questions with correct
answers
You are the nurse caring for Mr. Toma, a 36-year-old man who is having muscle spasms in his back after
falling from a ladder while working on his roof at home. The physician has prescribed cyclobenzaprine to
help relieve the muscle spasms in his back. For which medical condition would you want to hold the
medications because of the increased risk of adverse effects? - Ans:✔✔-A history of supraventricular
tachycardia
Explanation:
Cyclobenzaprine is contraindicated for patients with hyperthyroidism because of a possible increased
risk of arrhythmias or an exacerbation of tachycardia. Because of its similarity to the TCAs,
cyclobenzaprine is also contraindicated for use within 14 days of administration of monoamine oxidase
inhibitors (MAOIs). In overdoses, TCAs cause conduction disturbances and have been associated with
torsades de pointes (an atypical tachycardia) and death. Because it is closely related to the TCA
amitriptyline, cyclobenzaprine should be used cautiously in patients with heart failure, cardiac
arrhythmias, or atrioventricular block or other conduction disturbances and in those who are in the
acute recovery phase following myocardial infarction (MI)
Question 2:
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(see full question) A 43-year-old woman was diagnosed with multiple sclerosis 2 years ago and has
experienced a recent exacerbation of her symptoms, including muscle spasticity. Consequently, she has
been prescribed Dantrolene (Dantrium). In light of this new addition to her drug regimen, what teaching
point should the woman's nurse provide? - Ans:✔✔-"You might find that this drug exacerbates some of
your muscle weakness while it relieves your spasticity."
Correct
Explanation:
Dantrolene causes weakness because of its generalized reduction of muscle contraction. It is not
associated with drug dependence, hyperglycemia, hypoglycemia, or hallucinations
(see full question) The nurse can determine that the client taking uric acid inhibitors is drinking enough
fluids when which of the following occurs? - Ans:✔✔-The daily urine output is about two liters.
Explanation:
When taking uric acid inhibitors, the client should drink about 3000 mL per day, and the daily urine
output should be about two liters. The client's weekly weight and lip condition are not the best
assessments to evaluate adequate fluid intake (prevention of urate stone formation); they are acceptable
methods to assess for dehydration.
(see full question) Which of the following would the nurse include as possible adverse effects when
teaching a patient about phenytoin? - Ans:✔✔-Dantrolene (Dantrium)
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Explanation:
Dantrolene (Dantrium) acts directly on skeletal muscle to inhibit muscle contraction. It is used to relieve
spasticity in neurologic disorders (eg, MS, spinal cord injury) and to prevent or treat malignant
hyperthermia, a rare but life-threatening complication of anesthesia characterized by hypercarbia,
metabolic acidosis, skeletal muscle rigidity, fever, and cyanosis.
Question 6:
(see full question) Which of the following adverse effects could be the most significant for a patient
taking tizanidine (Zanaflex)? - Ans:✔✔-Hypotension
Correct
Explanation:
Tizanidine has been associated with hypotension, which could be a safety risk especially if the patient is
also taking an antihypertensive drug. Constipation, dry mouth, and fatigue are common adverse effects,
which do not pose a safety risk.
A patient, newly diagnosed with a seizure disorder, asks the nurse why they are receiving a specific drug.
What would be the best answer by the nurse? - Ans:✔✔-When prescribing an AED, the physician takes
into account the type of seizure the patient is having
Correct
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Explanation:
Type of seizure is a major factor in drug selection. Age and gender are not factors that impact the choice
of AED. Options A and B are incorrect
An operating room nurse is assisting the anesthesiologist in the preparation of an intravenous dose of
dantrolene. What emergent issue most likely prompted the need to give the patient dantrolene? -
Ans:✔✔-Malignant hyperthermia
Correct
Explanation:
IV dantrolene is the drug of choice, when accompanied by supportive measures, for acute treatment of
malignant hyperthermia. The drug is not used in the treatment of emergent CVA, myocardial ischemia,
or hypertension.
(see full question) The anatomy and physiology instructor is discussing what causes muscle contraction
and relaxation. What element is part of the process that causes muscle contraction and relaxation? -
Ans:✔✔-Calcium
Correct
Explanation:
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