a tension pneumothorax requires a needle thoracotomy andor chest tube placement as treatment to which component of the pathophysiology of the conditio
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Nursing Elites

ATI RN

ATI Pathophysiology Exam 2

1. A tension pneumothorax requires a needle thoracostomy and/or chest tube placement as treatment to which component of the pathophysiology of the condition?

Correct answer: C

Rationale: A tension pneumothorax is characterized by a large accumulation of trapped air in the pleural space, creating pressure that affects both the lungs and heart. This condition can lead to life-threatening consequences by shifting mediastinal structures and impairing cardiac function. Treatment involves decompressing the trapped air to relieve the tension. Choices A, B, and D are incorrect as they do not describe the primary pathophysiological mechanism of tension pneumothorax, which is the accumulation of air in the pleural space, not blood, rib fractures, or alveolar fluid accumulation.

2. When arterial blood pressure declines, the kidneys secrete a hormone to increase blood pressure and peripheral resistance. What is this hormone called?

Correct answer: A

Rationale: Renin is the correct answer. When arterial blood pressure decreases, the kidneys release renin, which triggers a series of reactions ultimately leading to an increase in blood pressure and peripheral resistance. Antidiuretic hormone (choice B) is involved in water retention, atrial natriuretic hormone (choice C) promotes sodium excretion and lowers blood pressure, and insulin (choice D) regulates glucose metabolism, not blood pressure.

3. A male patient receiving androgen therapy is concerned about side effects. What is the most serious adverse effect the nurse should monitor for during this therapy?

Correct answer: A

Rationale: The correct answer is A: Increased risk of cardiovascular events. Androgen therapy can significantly increase the risk of cardiovascular events, such as heart attack and stroke, especially in older patients. Monitoring for signs and symptoms of cardiovascular issues is crucial during this therapy. Choice B, increased risk of bone fractures, is not typically associated with androgen therapy. Choice C, increased risk of venous thromboembolism, is more commonly linked to estrogen therapy rather than androgen therapy. Choice D, increased risk of mood changes, can occur with androgen therapy but is not as serious or life-threatening as cardiovascular events.

4. The nurse knows which phenomenon listed below is an accurate statement about axonal transport?

Correct answer: B

Rationale: The correct answer is B. Axonal transport involves the movement of materials to the nerve terminal by either fast or slow components, which is essential for cell survival. Choice A is incorrect because while anterograde and retrograde axonal transport are involved in the movement of materials, they do not specifically relate to the communication of nerve impulses between a neuron and the CNS. Choice C is incorrect because the unidirectional nature of axonal transport does not primarily function to protect the CNS against pathogens. Choice D is incorrect as axonal transport is responsible for the movement of various materials, not just electrical impulses.

5. A nursing student having trouble moving her head from side to side is likely experiencing a problem with which type of neurons?

Correct answer: D

Rationale: The correct answer is D: Pharyngeal efferent neurons. Pharyngeal efferent neurons are responsible for controlling head movements, including side-to-side motions. General visceral efferent neurons (Choice A) are involved in innervating smooth muscles and glands in the body's internal organs. Preganglionic neurons (Choice B) are part of the autonomic nervous system and connect the central nervous system to the ganglia. Parasympathetic postganglionic neurons (Choice C) are the second neurons in the parasympathetic nervous system pathway, responsible for innervating target organs. In this case, the issue with moving the head from side to side indicates a problem with the pharyngeal efferent neurons.

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