ATI RN
Pathophysiology Practice Exam
1. A patient is starting on alendronate (Fosamax) for osteoporosis. What instructions should the nurse provide to ensure the effectiveness of the medication?
- A. Take the medication with a full glass of water and remain upright for at least 30 minutes.
- B. Take the medication at bedtime to ensure absorption during sleep.
- C. Take the medication with milk to enhance calcium absorption.
- D. Take the medication with food to prevent gastrointestinal upset.
Correct answer: A
Rationale: The correct answer is to take alendronate with a full glass of water and remain upright for at least 30 minutes. This is essential to prevent esophageal irritation and ensure proper absorption. Choice B is incorrect because taking alendronate at bedtime can increase the risk of esophageal irritation due to lying down. Choice C is incorrect as taking alendronate with milk can reduce its absorption. Choice D is incorrect because alendronate should be taken on an empty stomach to enhance its effectiveness.
2. Which goal is a priority for a client with a DSM-IV-TR diagnosis of delirium and the nursing diagnosis Acute confusion related to recent surgery secondary to traumatic hip fracture?
- A. The client will complete activities of daily living.
- B. The client will maintain safety.
- C. The client will remain oriented.
- D. The client will understand communication.
Correct answer: B
Rationale: The correct answer is B: 'The client will maintain safety.' For a client with delirium, especially in the context of acute confusion post-surgery, safety is the top priority. Delirium can lead to disorientation, impaired decision-making, and increased risk of falls or accidents. Ensuring the client's safety by implementing measures to prevent harm is crucial. Choices A, C, and D are important but not the priority in this scenario. Completing activities of daily living, remaining oriented, and understanding communication are relevant goals but come after ensuring the client's safety in the presence of delirium and acute confusion.
3. When reviewing the purpose/action of neurotransmitters as they interact with different receptors, the nursing instructor gives an example using acetylcholine. When acetylcholine is released at the sinoatrial node in the right atrium of the heart, it is:
- A. positively charged.
- B. inhibitory.
- C. overstimulated.
- D. dormant.
Correct answer: B
Rationale: Acetylcholine acts as an inhibitory neurotransmitter at the sinoatrial node. It slows down the heart rate by decreasing the firing rate of the sinoatrial node, which serves as the heart's natural pacemaker. Neurotransmitters do not have a charge, so choice A is incorrect. Choice C is wrong as overstimulation is not a characteristic of acetylcholine at the sinoatrial node. Choice D is also incorrect because acetylcholine actively influences heart rate regulation when released at the sinoatrial node.
4. A client is brought to the emergency department after a motor vehicle accident in which she suffered a spinal cord injury at the level of C5. Which of the following assessments should be the priority?
- A. Monitoring urinary output
- B. Monitoring heart rate and rhythm
- C. Monitoring respiratory rate
- D. Monitoring the client's pain levels
Correct answer: B
Rationale: The correct answer is monitoring heart rate and rhythm. With a C5 spinal cord injury, monitoring heart rate and rhythm is crucial as it can impact autonomic regulation. This level of injury can affect cardiac function due to the disruption of sympathetic nerve fibers. Monitoring urinary output may be important to assess for urinary retention, but it is not the priority in this scenario. While monitoring respiratory rate is essential in all patients, in this case, cardiovascular stability takes precedence. Pain management is important but is not the priority when assessing a client with a C5 spinal cord injury.
5. A 70-year-old client presents with weakness and sensory loss in the right hand and foot. The client also exhibits speech difficulties. Which condition is the client most likely experiencing?
- A. Transient ischemic attack (TIA)
- B. Brain tumor
- C. Cerebral infarction
- D. Multiple sclerosis
Correct answer: C
Rationale: The correct answer is C: Cerebral infarction (stroke). In this case, the client's symptoms of weakness and sensory loss in the right hand and foot, along with speech difficulties, are indicative of a stroke. These symptoms are commonly seen in individuals experiencing a cerebral infarction, where a blockage in blood flow to the brain leads to neurological deficits. Choices A, B, and D are less likely as transient ischemic attacks (TIAs) typically have temporary symptoms with no permanent damage, brain tumors may present with a different set of symptoms depending on their location, and multiple sclerosis usually presents with a relapsing-remitting pattern of neurological symptoms rather than sudden onset unilateral deficits.
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