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. The nurse plans to administer the rubella vaccine to a postpartum client whose titer is < 1:8 and who is breastfeeding. What information should the nurse provide this client?

Correct answer: D

Rationale: Educating about the waiting period helps prevent possible rubella infection in a subsequent early pregnancy.

3. A client reports pain after medication administration. What is the next best step for the nurse?

Correct answer: A

Rationale: The correct answer is to reassess the client’s pain. Reassessment is essential to evaluate the effectiveness of the initial intervention. By reassessing, the nurse can determine if the current pain management plan is adequate or if further interventions are required. Increasing the pain medication dose without reassessment can lead to overmedication and potential adverse effects. Applying a cold compress may not address the underlying cause of the pain and should be based on a proper assessment. Contacting the healthcare provider should be considered if the reassessment indicates a need for further evaluation or intervention beyond the nurse's scope of practice.

4. The nurse is caring for a client who has just undergone a total hip replacement. Which intervention is most important to prevent postoperative complications?

Correct answer: A

Rationale: Encouraging early ambulation is crucial following a total hip replacement surgery as it helps prevent complications such as deep vein thrombosis (DVT) by promoting circulation. Early ambulation also aids in preventing pneumonia, muscle atrophy, and pressure ulcers. Applying ice to the surgical site may help with pain and swelling, but it is not as critical in preventing complications as early ambulation. While monitoring the surgical site for signs of infection is important, it is not as crucial in preventing postoperative complications compared to early ambulation. Administering pain medication as prescribed is essential for comfort and pain management but does not directly prevent postoperative complications like early ambulation does.

5. The nurse is caring for a client with a chest tube after thoracic surgery. What is the most important assessment related to the chest tube?

Correct answer: D

Rationale: The most important assessment related to a chest tube after thoracic surgery is to assess for subcutaneous emphysema around the insertion site. Subcutaneous emphysema can indicate air leakage from the pleural space, which can lead to serious complications such as a pneumothorax. Ensuring continuous bubbling in the water seal chamber is not the most critical assessment as it is a normal finding in a chest drainage system. While measuring the amount of drainage is important to monitor the client's condition, it is not as crucial as assessing for subcutaneous emphysema. Keeping the drainage system at the level of the chest helps maintain proper function but is not the most critical assessment in this scenario.

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