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 with streptococcal pneumonia is receiving penicillin G by intermittent IV bolus. 10 minutes into the infusion of the third dose, the client reports itching at the IV site, dizziness, and shortness of breath. What should the nurse do first?
- A. Stop the infusion.
- B. Call the provider.
- C. Elevate the head of the bed.
- D. Auscultate breath sounds.
Correct answer: A
Rationale: In this scenario, the client is exhibiting signs of anaphylaxis, a severe allergic reaction. The priority action for the nurse is to stop the infusion immediately to prevent further administration of the allergen and worsening symptoms. Once the infusion is stopped, the nurse can then proceed with additional interventions, such as calling the provider, assessing the client's respiratory status, and providing appropriate care as needed.
3. A client has a new prescription for Trimethoprim-sulfamethoxazole. Which of the following information should the nurse include?
- A. Take the medication on an empty stomach.
- B. Maintain a fluid restriction while taking it.
- C. Take it with food.
- D. Stop taking it when manifestations subside.
Correct answer: C
Rationale: The correct answer is C: 'Take it with food.' Trimethoprim-sulfamethoxazole can cause gastrointestinal upset, and taking it with food helps reduce the risk of stomach irritation. It should not be taken on an empty stomach. Maintaining good hydration is important to prevent kidney-related side effects, so maintaining a fluid restriction, as in choice B, is not appropriate. Additionally, stopping the medication when manifestations subside, as in choice D, is incorrect as antibiotics should be taken for the full prescribed course to ensure eradication of the infection and to prevent antibiotic resistance.
4. A healthcare professional is planning to administer Morphine IV to a postoperative client. Which of the following actions should the healthcare professional take?
- A. Monitor for seizures and confusion with repeated doses.
- B. Protect the client's skin from severe diarrhea that occurs with morphine.
- C. Withhold this medication if the respiratory rate is less than 12/min.
- D. Administer Morphine intermittently via IV bolus over 30 seconds or less.
Correct answer: C
Rationale: The correct action the healthcare professional should take when administering Morphine IV to a postoperative client is to withhold the medication if the respiratory rate is less than 12/min. Respiratory depression is a common adverse effect of opioids like Morphine. Administering opioids when the respiratory rate is already compromised can further depress breathing, leading to life-threatening complications. Monitoring for seizures and confusion (Choice A) is not directly related to Morphine administration. Protecting the client's skin from severe diarrhea (Choice B) is not a common side effect of morphine. Administering Morphine via IV bolus (Choice D) should be done carefully but is not the most critical action in this scenario.
5. A client has a new prescription for Albuterol and Beclomethasone inhalers for the control of asthma. Which of the following instructions should the nurse include in the teaching?
- A. Take the albuterol at the same time each day.
- B. Administer the albuterol inhaler before using the beclomethasone inhaler.
- C. Use beclomethasone if experiencing an acute episode.
- D. Avoid shaking the beclomethasone before use.
Correct answer: B
Rationale: When a client is prescribed an inhaled beta2-agonist (such as albuterol) and an inhaled glucocorticoid (such as beclomethasone) for asthma control, the beta2-agonist should be administered first. Administering the beta2-agonist before the glucocorticoid helps promote bronchodilation and enhances the absorption of the glucocorticoid, maximizing its effectiveness in the lungs. Choice A is incorrect because albuterol is usually taken as needed for quick relief of asthma symptoms and not necessarily at the same time each day. Choice C is incorrect as beclomethasone is a controller medication used for long-term asthma management, not for acute episodes. Choice D is incorrect as shaking the beclomethasone inhaler before use helps ensure proper medication dispersion for effective inhalation.
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