HESI PN Exit Exam

Correct Answer: B

Rationale: Administering an antiemetic as prescribed is the best action for the nurse to take when a client with a patent NG tube is experiencing nausea. This intervention can help relieve nausea effectively. Increasing suction on the NG tube (Choice A) may not address the underlying cause of the nausea and could potentially lead to complications. Irrigating the NG tube with saline (Choice C) is not indicated for addressing nausea in this scenario. Repositioning the client to the left side (Choice D) is not the priority intervention for nausea in a client with a patent NG tube.

Correct Answer: D

Rationale: Measuring vital signs is crucial in this situation as it helps to determine if the client is experiencing a physical health issue or if the symptoms are related to a mental health crisis, such as anxiety or agitation. The presence of diaphoresis and pacing may indicate physiological changes requiring immediate attention. Providing a drink high in electrolytes or persuading the client to lie down may not address the underlying cause of the symptoms. Simply observing the client during the shift without taking necessary actions to assess his physiological status may delay appropriate intervention.

Correct Answer: B

Rationale: Administering oxygen and obtaining an ECG are crucial initial steps when managing a suspected myocardial infarction (MI). Oxygen helps improve oxygenation to the heart muscle, while an ECG is essential to diagnose an MI promptly. Applying a cold compress, encouraging the patient to walk, or providing a high-carbohydrate meal are not appropriate actions in the initial management of a suspected MI. Applying a cold compress can delay necessary interventions, encouraging the patient to walk may worsen the condition, and providing a high-carbohydrate meal is irrelevant to the immediate needs of a patient with a suspected MI.

Correct Answer: A

Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.

Correct Answer: B

Rationale: The correct answer is B: 'On the opposite side of the affected extremity.' Placing the cane on the opposite side of the affected extremity provides maximum support and stability during ambulation for a client recovering from a stroke. This positioning helps to offload weight from the affected side and improves balance. Choice A is incorrect because placing the cane in front of the body can lead to incorrect weight distribution and instability. Choice C is incorrect as placing the cane one foot away from the body may not provide adequate support and can compromise balance. Choice D is incorrect as placing the cane on the same side as the affected extremity does not offer the necessary balance and support needed for safe ambulation.