United States University - MSN 571 Synch Session 3. Answered.1. The nurse prepares to administer a new prescription for bethanechol. Which diagnosis
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the pts hx would prompt the nurse to consult with the prescriber before giving the drug?
Asthma Bethanechol = muscarinic agonist. Parasympathomimetic. Decreases HR, N/V,
increase salivation, opposite effects of fight or flight. Induces bronchospasm. Used for
urinary retention.
2. The nurse is preparing to administer sumatriptan (Imitrex) to a pt suffering from a
migraine. This medication works to relieve migraine symptoms by affecting which
substance in the brain? Calcitonin gene related peptide = potent neuropeptide
neurotransmitter, released from peripheral and central nerve endings during a migraine.
Causes pain and vasodilation. Sumatriptan blocks the pain transmission, vasoconstriction
occurs. Avoid prescribing this to patients with HTN.
3. Which medication would the nurse anticipate being prescribed for a pt with a new
diagnosis of cluster headaches? Verapamil (calan) =CCB. Lithium is 2nd line for tx of
cluster headaches.
4. Which of the following measurements would prompt the nurse to hold the sumatriptan
dose and contact the hcp? BP of 190/100. Causes vasoconstriction, avoid giving to
patients with HTN. Can cause hypertensive crisis.
Toradol
5. Pt with a hx of moderate to severe h/a pain associated with n/v is diagnosed with
migraines. Which medication would the nurse anticipate the pt will be prescribed
initially? Sumatriptan (Imitrex)- 1st choice for mod to severe migraines. Migraine
referactory= difficult to treat and failed to fix with other methods- you can use
stadol/meperidine/demoral
6. The nurse is assessing a pt taking ergotamine. Which assessment result requires
immediate action? Pale extremities= sign of serious toxicity-ergotism. N/V, overdose,
can cause ischemia secondary to constriction of peripheral arteries. Good for acute
headaches, not for long term use. Ergotamine is a naturally occurring vasoconstrictor,
decreases blood blow in cerebral arteries; binds selectively to serotonin 5H21D receptors;
Ergotism- ischemia of large vessels.
7. A pt has been admitted with a h/a of unknown origin. Which med will the nurse
administer first while assessing for cause? Acetaminophen [Show Less]