CAT Exam Practice

Correct Answer: A

Rationale: The nurse's legal responsibility in obtaining written consent is to validate the client's understanding of the surgical procedure to be conducted. This process ensures that the client has been comprehensively informed about the procedure, including its risks, benefits, and alternatives. Choice B is incorrect because it does not emphasize the validation of client understanding, which is crucial for informed consent. Choice C is incorrect as the client, not a family member, should provide consent unless specific circumstances dictate otherwise. Choice D is incorrect because although ensuring the consent form is signed and filed is important, it does not address the primary responsibility of confirming the client's comprehension and ensuring informed consent.

Correct Answer: D

Rationale: The correct answer is D. Diaphragmatic breathing is a beneficial intervention for clients with COPD as it helps improve breathing efficiency and manage symptoms by promoting better air exchange in the lungs. It aids in achieving better exhalation, reducing air trapping, and enhancing overall lung function. Choices A, B, and C are incorrect. While reducing risk factors for infection is important for overall health, it is not a specific long-term intervention for COPD. Administering high-flow oxygen during sleep may be necessary in some cases but is not typically a long-term strategy for managing COPD. Limiting fluid intake to reduce secretions is not recommended as hydration is essential for individuals with COPD to maintain optimal respiratory function and prevent complications like mucus plugs.

Correct Answer: A

Rationale: Monitoring cardiac activity is crucial in this scenario because hyperkalemia can lead to serious cardiac dysrhythmias, which can be life-threatening. Regular monitoring of the client's cardiac activity via telemetry allows for early detection of any potential cardiac complications. Maintaining venous access with a normal saline infusion is important for hydration but does not address the immediate risk of cardiac dysrhythmias posed by hyperkalemia. Assessing glucose levels is essential in diabetes management but is not the priority when dealing with hyperkalemia-induced cardiac risks. Evaluating hourly urine output for the return of normal renal function is important in ARF but is not as urgent as monitoring the client's cardiac activity in the context of hyperkalemia.

Correct Answer: C

Rationale: Continuing outpatient treatment is crucial for managing anorexia nervosa and preventing future complications. Reinforcing the need to continue outpatient treatment ensures ongoing support, monitoring, and therapy for the client's anorexia nervosa. Describing the importance of maintaining stable blood glucose levels (Choice A) is relevant but does not address the underlying eating disorder directly. Encouraging a balanced and nutritious diet (Choice B) is important; however, specific dietary recommendations should be tailored to the individual's condition by healthcare providers. Educating on the risks of untreated anorexia nervosa (Choice D) is informative but does not provide a direct actionable step for the client's immediate discharge plan, unlike the importance of continuing outpatient treatment.

Correct Answer: A

Rationale: In this critical situation with gastric rupture and impending MODS, the priority intervention should be mechanical ventilation. This client is at risk of respiratory compromise due to the severity of the condition. Platelet transfusion (Choice B) is not the priority as there is no indication of significant bleeding. Loop diuretic therapy (Choice C) and cyanocobalamin administration (Choice D) are not the immediate priorities in this scenario and would not address the urgent need for respiratory support.