A nurse is providing teaching to a client who has erectile dysfunction and has a new prescription for tadalafil. Which of the following client statements indicates an understanding of the teaching?
I should crush this medication if I have difficulty swallowing.
This medication can decrease my blood pressure.
I can take this medication up to twice a day.
The effects of this medication will not last more than 4 hours.
The Correct Answer is B
Choice A rationale
Crushing tadalafil is not recommended as it can alter the medication’s effectiveness and absorption. Tadalafil should be taken whole to ensure proper dosage and efficacy.
Choice B rationale
Tadalafil can decrease blood pressure by relaxing blood vessels, which allows for increased blood flow. This is a known effect of phosphodiesterase type 5 (PDE5) inhibitors like tadalafil.
Choice C rationale
Tadalafil should not be taken more than once a day. Taking it twice a day can increase the risk of side effects and is not recommended.
Choice D rationale
The effects of tadalafil can last up to 36 hours, not just 4 hours. This prolonged duration is one of the reasons it is preferred by some patients.
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Correct Answer is C
Explanation
Choice A rationale
Incorrect packaging, such as a topical medication packaged as an oral medication, can lead to medication errors. However, it is not the most frequent cause of fatal medication errors. Packaging errors are relatively rare and usually caught before administration.
Choice B rationale
Delivery device problems, such as an infusion pump malfunction, can cause medication errors. These errors can be serious but are not the most frequent cause of fatal medication errors. Device malfunctions are often detected and corrected by healthcare professionals.
Choice C rationale
Name confusion between two medications with similar sounding names is the most frequent cause of fatal medication errors. This type of error occurs when medications with similar names are confused, leading to the administration of the wrong drug. This can have serious and sometimes fatal consequences.
Choice D rationale
Incorrect labeling of a medication dispensed by the pharmacy can lead to medication errors. While labeling errors are a significant concern, they are not the most frequent cause of fatal medication errors. These errors are often identified and corrected before administration.
Correct Answer is C
Explanation
Choice A rationale
Rifampin is an antibiotic used to treat tuberculosis and other bacterial infections. It does not have a known interaction with St. John’s wort.
Choice B rationale
Furosemide is a diuretic used to treat fluid retention and high blood pressure. It does not have a known interaction with St. John’s wort.
Choice C rationale
Citalopram is a selective serotonin reuptake inhibitor (SSRI) used to treat depression. St. John’s wort can interact with SSRIs like citalopram, potentially leading to serotonin syndrome, a serious condition caused by excessive levels of serotonin in the brain.
Choice D rationale
Allopurinol is used to treat gout and kidney stones. It does not have a known interaction with St. John’s wort.