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 healthcare provider reviews the laboratory results of a client whose serum pH is 7.38. What does this value imply about the client's homeostasis?

Correct answer: C

Rationale: A pH of 7.38 falls within the normal range (7.35-7.45), indicating that the client’s acid-base balance is adequately maintained. Choices A and B are incorrect as alkalosis and acidosis refer to abnormal pH levels. Choice D is incorrect as a pH of 7.38 within the normal range is compatible with life.

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 palpating the right upper hypochondriac region of the abdomen of a client. What organ lies underneath this area?

Correct answer: C

Rationale: The correct answer is C: Liver. The liver is located in the right upper hypochondriac region of the abdomen. The duodenum (Choice A) is located in the right upper quadrant but not directly underneath the right upper hypochondriac region. The gastric pylorus (Choice B) is part of the stomach and is located more centrally in the abdomen. The spleen (Choice D) is located in the left upper quadrant of the abdomen, not underneath the right upper hypochondriac region.

5. The nurse is caring for a client who has just received a blood transfusion. The client reports chills and back pain. What is the nurse's priority action?

Correct answer: C

Rationale: Chills and back pain are signs of a possible transfusion reaction, which can indicate severe complications like a hemolytic reaction or sepsis. The priority action for the nurse is to stop the transfusion immediately to prevent further harm to the client. Slowing the rate of the transfusion or administering an antipyretic will not address the underlying cause of the reaction and could potentially worsen the client's condition. Notifying the healthcare provider should be done after ensuring the client's immediate safety by stopping the transfusion.

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