a client with a diagnosis of myocardial infarction mi is prescribed nitroglycerin what is the primary action of this medication
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Nursing Elites

HESI LPN

Adult Health 1 Final Exam

1. A client with a diagnosis of myocardial infarction (MI) is prescribed nitroglycerin. What is the primary action of this medication?

Correct answer: C

Rationale: The correct answer is C: Nitroglycerin dilates coronary arteries, improving blood flow to the heart muscle. This helps increase oxygen supply to the heart tissue. Option A, 'Increases heart rate,' is incorrect because nitroglycerin does not directly affect heart rate. Option B, 'Lowers blood pressure,' is also incorrect as while nitroglycerin can lower blood pressure, its primary action in the context of MI is related to coronary artery dilation. Option D, 'Reduces myocardial oxygen demand,' is not the primary action of nitroglycerin in the treatment of myocardial infarction; its main action is to increase oxygen supply by dilating coronary arteries.

2. How should the nurse assess for cyanosis in a client with dark skin who is in respiratory distress?

Correct answer: C

Rationale: Observing the lips and mucous membranes provides a reliable indicator of cyanosis in clients with dark skin tones. Choice A is incorrect because cyanosis can be assessed in clients with dark skin by observing other body areas. Choice B is incorrect as blanching the soles of the feet is not a relevant method for assessing cyanosis. Choice D is incorrect as cyanosis is not typically seen in the sclera in clients with dark skin.

3. A client is diagnosed with type 1 diabetes mellitus. Which instruction about insulin administration should the nurse emphasize?

Correct answer: C

Rationale: The correct answer is to only use insulin pens. This is because insulin pens provide a convenient and accurate way to administer insulin. Rotating injection sites is important to prevent tissue damage and promote consistent insulin absorption, making choice A incorrect. Injecting insulin into the same site can lead to lipodystrophy and is not recommended, making choice B incorrect. Mixing different types of insulin in the same syringe can alter their action profiles and is generally not recommended, making choice D incorrect.

4. The nurse is preparing a client for discharge after a major surgical procedure. What is the priority instruction to include in the discharge teaching?

Correct answer: D

Rationale: The correct answer is D: All of the above. Providing comprehensive discharge instructions covering signs of infection to monitor for, pain management techniques, activity restrictions, and safety measures is crucial after a major surgical procedure. Each of these components plays a vital role in the client's recovery and well-being. It is important for the client to understand how to identify signs of infection, manage pain effectively, and adhere to activity restrictions to prevent complications and ensure a smooth recovery process. While each instruction is important on its own, combining all aspects into the discharge teaching ensures that the client has a holistic understanding of their post-operative care, empowering them to take charge of their health and know when to seek further assistance if needed. Choices A, B, and C are essential components of discharge teaching and should all be included to provide the client with comprehensive care instructions.

5. Which client will benefit most from the application of pneumatic compression devices to the lower extremities? The client who

Correct answer: A

Rationale: The correct answer is A. Pneumatic compression devices are most beneficial for immobile clients on prescribed bedrest to prevent deep vein thrombosis. Applying these devices helps in promoting circulation and preventing blood clots. Choices B, C, and D do not specifically relate to the primary indication for pneumatic compression devices, making them incorrect. Pressure ulcers, diminished pedal pulse volume, and confusion with climbing out of bed may require different interventions or treatments.

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