a nurse is administering a dopamine infusion at a low dose to a client who has severe heart failure which of the following findings is an expected ef

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 has a prescription for Erythromycin. Which of the following instructions should be included?

A. Take the medication with food.
B. Expect your urine to turn dark yellow.
C. Take the medication with a full glass of milk.
D. Report persistent diarrhea to your provider.

Correct answer: D

Rationale: The correct answer is D: 'Report persistent diarrhea to your provider.' Erythromycin is known to cause Clostridium difficile-associated diarrhea, which can be severe. Instructing the client to report any persistent diarrhea to their healthcare provider promptly is crucial to prevent complications. Choices A, B, and C are incorrect. Taking Erythromycin with food is generally recommended to reduce stomach upset, but it is not the most critical instruction. Expecting urine to turn dark yellow is not a common side effect of Erythromycin. Taking Erythromycin with a full glass of milk is not necessary and may not be appropriate for all clients, especially those with lactose intolerance or dairy allergies.

3. When should Montelukast be taken?

A. At least two hours before exercise
B. Daily in the evening
C. Two hours before exercise or daily in the evening
D. None of the above

Correct answer: B

Rationale: Montelukast should be taken daily in the evening to effectively manage asthma symptoms. Taking it at the same time each day helps maintain a consistent level of the medication in the body, providing optimal control over asthma symptoms and inflammation. Choice A is incorrect because Montelukast should not be taken specifically before exercise, but rather daily. Choice C is incorrect because although taking Montelukast two hours before exercise is not necessary, taking it daily in the evening is essential for its effectiveness. Choice D is incorrect as Montelukast should be taken daily to manage asthma.

4. When teaching a client how to use nitroglycerin transdermal ointment for angina, which instruction should the nurse include?

A. Remove the prior dose before applying a new dose.
B. Rub the ointment directly into your skin until it is no longer visible.
C. Cover the applied ointment with a clean gauze pad.
D. Apply the ointment to the same skin area each time.

Correct answer: A

Rationale: The correct instruction is to remove the prior dose before applying a new dose. This helps prevent toxicity by ensuring the client does not inadvertently apply an excessive amount of nitroglycerin.

5. What is the action of Nitroglycerin?

A. Dilates the Bronchi
B. Reduces Blood Glucose
C. Reduces Nausea
D. Dilates Coronary Arteries

Correct answer: D

Rationale: Nitroglycerin acts by dilating the coronary arteries, leading to increased blood flow and oxygen supply to the heart. This helps in relieving angina symptoms by reducing the heart's workload and improving blood supply to the myocardium. Choices A, B, and C are incorrect because Nitroglycerin's primary action is not related to dilating bronchi, reducing blood glucose, or reducing nausea.