Pharmacology and the Nursing Process Test Bank

Correct Answer: D

Rationale: The correct answer is D because Buck's extension traction is not used definitively to treat fractures in children due to their growing bones. Instead, it is used temporarily in adults to control muscle spasm and pain. - A: Correct - Buck's extension traction is indeed used temporarily in adults to control muscle spasm and pain. - B: Correct - Buck's extension traction is applied by an orthopedic surgeon under aseptic conditions using wires and pins. - C: Correct - The pulling force in Buck's extension traction is indeed transmitted to the musculoskeletal structures. Therefore, the incorrect option is D as Buck's extension traction is not used definitively to treat fractures in children.

Correct Answer: A

Rationale: Step 1: Pulmonary edema is caused by fluid accumulation in the lungs due to increased pressure in the pulmonary vasculature. Step 2: Decreased left ventricular pumping leads to congestive heart failure, causing increased pressure in pulmonary circulation. Step 3: This increased pressure forces fluid from the capillaries into the alveoli, causing pulmonary edema. Step 4: Increased left atrial contractility (B) would not directly lead to pulmonary edema. Step 5: Decreased right ventricular elasticity (C) and increased right atrial pressure (D) are not directly related to the pathophysiology of pulmonary edema. Summary: The correct answer is A because decreased left ventricular pumping directly contributes to the increased pressure in the pulmonary circulation that leads to pulmonary edema. Choices B, C, and D do not align with the primary underlying disorder of pulmonary edema.

Correct Answer: A

Rationale: The correct answer is A: Inform the physician. This is essential because a sudden change in vital signs may indicate a critical condition that requires immediate medical attention. The physician needs to be informed promptly to assess the situation and provide appropriate interventions. Summary: - B: Changing environmental settings is not a priority when dealing with sudden changes in vital signs. - C: Altering diet intake is not an immediate response to sudden changes in vital signs. - D: Decreasing physical activity may not address the underlying cause of the sudden change in vital signs.

Correct Answer: C

Rationale: The correct answer is C: A decreased number of functioning acetyl-choline receptor sites. This is because in diseases like myasthenia gravis, there is an autoimmune attack on acetylcholine receptor sites, leading to decreased functionality. Choice A is incorrect because it refers to a genetic defect in acetylcholine production, which is not typically the cause of myasthenia gravis. Choice B is incorrect as it suggests a reduced amount of acetylcholine, which is not the primary issue in myasthenia gravis. Choice D is incorrect as it mentions inhibition of the enzyme Ache, which is not the main mechanism in this disease.

Correct Answer: C

Rationale: The correct answer is C: Inform the registered nurse. This is the best course of action as the LPN should escalate the situation to a higher level of care by involving the registered nurse who can further assess the patient's concerns and provide appropriate interventions. A. Reassuring the patient may not address the underlying fear and may not be sufficient to alleviate their anxiety. B. Providing statistics about surgery death rates may further escalate the patient's fears and anxiety, causing more harm than good. D. Involving the family to comfort the patient may not address the patient's specific concerns and may not be within the family's scope of understanding or expertise to effectively address the situation. Informing the registered nurse allows for a more comprehensive assessment and appropriate intervention to address the patient's fears and concerns in a holistic manner.