Critical Care Nursing Questions and Answers PDF

Correct Answer: C

Rationale: The correct answer is C: Paralysis. Neuromuscular blocking agents work by blocking the transmission of nerve impulses at the neuromuscular junction, leading to muscle paralysis. This paralysis helps facilitate intubation, surgical procedures, and mechanical ventilation. A: Analgesia - Neuromuscular blocking agents do not provide pain relief; they primarily induce muscle paralysis without affecting pain sensation. B: Anticonvulsant - Neuromuscular blocking agents do not prevent or treat seizures; their mechanism of action is not related to controlling convulsions. D: Sedation - Neuromuscular blocking agents do not induce sedation; they specifically target the neuromuscular junction to cause muscle paralysis.

Correct Answer: A

Rationale: The correct answer is A because in this situation, the patient is no longer able to make decisions for themselves due to being heavily sedated. The healthcare surrogate or proxy steps in to make decisions on behalf of the patient to ensure their comfort and well-being. Choice B is incorrect because the patient is competent and able to make their own decisions, so there is no need for a surrogate to take over decision-making. Choice C is incorrect because the patient is competent and has the right to make decisions about their own treatment, even if they go against medical recommendations. Choice D is incorrect because the patient is competent and receiving appropriate treatment for their pain and anxiety, so there is no need for a surrogate to intervene in this scenario.

Correct Answer: C

Rationale: The correct answer is C because obtaining certification in critical care nursing demonstrates the nurse's personal expertise in the specialty. Certification confirms the nurse's advanced knowledge and skills, enhancing professional credibility and potential for career advancement. This choice focuses on the individual nurse's competency and dedication to the specialty. Incorrect choices: A: Salary increase is not the primary benefit of certification, although it may be a potential outcome. B: Certification is often preferred but not always required to work in critical care. D: Employers may encourage certification, but it is not always mandated.

Correct Answer: A

Rationale: The correct answer is A because palliative care indeed focuses on providing relief from pain and other symptoms, enhancing quality of life for patients with serious illnesses. This aligns with the essence of palliative care, which is to provide holistic support to improve comfort and well-being. The other choices are incorrect: B is wrong because palliative care does not aim to cure the underlying disease but rather to alleviate suffering; C is incorrect as palliative care can be initiated earlier in the disease trajectory, not just during the final days; and D is inaccurate because patients can continue receiving treatments alongside palliative care to manage symptoms and improve their quality of life.

Correct Answer: D

Rationale: The correct answer is D: Pulmonary artery wedge pressure (PAWP). This is crucial in monitoring a patient with a large anterior wall myocardial infarction as it provides information on left ventricular function and fluid status. A high PAWP may indicate left ventricular failure or fluid overload, requiring immediate intervention. A: Central venous pressure (CVP) is not as specific for assessing left ventricular function and may not provide accurate information in this scenario. B: Systemic vascular resistance (SVR) is important in assessing systemic blood flow, but it may not directly indicate left ventricular function in this case. C: Pulmonary vascular resistance (PVR) is more relevant in conditions affecting the pulmonary circulation and may not be as immediately informative in assessing left ventricular function in this context.