ATI RN
ATI Pharmacology Quizlet
1. A healthcare professional is administering a Dopamine infusion at a low dose to a client with severe heart failure. Which of the following findings is an expected effect of this medication?
- A. Lowered heart rate
- B. Increased myocardial contractility
- C. Decreased conduction through the AV node
- D. Vasoconstriction of renal blood vessels
Correct answer: B
Rationale: Dopamine, when administered at a low dose, is expected to increase myocardial contractility by stimulating beta1 receptors. This positive inotropic effect leads to an increase in cardiac output. Therefore, the correct answer is increased myocardial contractility, as it is a desired effect of administering dopamine to a client with severe heart failure.
2. A client is starting therapy with Metformin. Which of the following instructions should the nurse include?
- A. Take this medication with your first bite of food.
- B. Take this medication on an empty stomach.
- C. Take this medication before bedtime.
- D. Take this medication every other day.
Correct answer: A
Rationale: Metformin should be taken with meals to reduce gastrointestinal side effects and ensure better absorption. Instructing the client to take the medication with the first bite of food helps in achieving optimal effectiveness and minimizes the risk of side effects like nausea or upset stomach. Choice B is incorrect because taking Metformin on an empty stomach can lead to increased gastrointestinal side effects. Choice C is incorrect as there is no specific timing requirement for taking Metformin before bedtime. Choice D is incorrect as Metformin is usually taken daily, not every other day.
3. A healthcare professional is preparing to administer Butorphanol to a client who has a history of substance use disorder. The healthcare professional should identify which of the following information as true regarding Butorphanol?
- A. Butorphanol has a greater risk of abuse than morphine.
- B. Butorphanol causes a higher incidence of respiratory depression than morphine.
- C. Butorphanol cannot be reversed with an opioid antagonist.
- D. Butorphanol can cause abstinence syndrome in opioid-dependent clients.
Correct answer: D
Rationale: Corrected Rationale: Butorphanol, an opioid agonist/antagonist, can lead to abstinence syndrome in clients who are opioid-dependent. This syndrome may present with symptoms like abdominal pain, fever, and anxiety. It is crucial for healthcare professionals to consider this risk when administering Butorphanol to clients with a history of substance use disorder. Choices A, B, and C are incorrect. Butorphanol is less likely to be abused than morphine, causes less respiratory depression than morphine, and can be reversed with an opioid antagonist.
4. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?
- A. One
- B. Two
- C. Three
- D. Four
Correct answer: A
Rationale: Phenobarbital, with a long half-life of 4 days, remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should administer phenobarbital once a day to maintain a consistent therapeutic effect without the need for multiple daily doses. Administering the medication more than once a day would not be necessary and could increase the risk of side effects or toxicity. Therefore, the correct answer is to administer phenobarbital once a day.
5. A client has a new prescription for Clonidine to assist with maintenance of abstinence from opioids. The nurse should instruct the client to monitor for which of the following adverse effects?
- A. Diarrhea
- B. Dry mouth
- C. Insomnia
- D. Hypertension
Correct answer: B
Rationale: Dry mouth is a common adverse effect associated with Clonidine use. Clonidine is known to cause a reduction in saliva production, leading to dry mouth. Monitoring for this adverse effect is essential to ensure client comfort and compliance with the medication. Diarrhea is not a common adverse effect of Clonidine. Insomnia is more commonly associated with opioid withdrawal rather than Clonidine use. While Clonidine is used to treat hypertension, it is not typically an adverse effect of the medication.
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