Critical Care Nursing Questions and Answers PDF

Correct Answer: A

Rationale: The correct answer is A: Assessing the patient's level of pain. In this situation, the patient's tachycardia, hypertension, and increased respiratory rate could be indicative of pain. By assessing the patient's pain level, the nurse can address any discomfort the patient may be experiencing, which could be contributing to these physiological responses. Summary of other choices: B: Decreasing the SIMV rate on the ventilator - This is not the priority intervention as the patient's symptoms are more likely related to pain rather than the ventilator settings. C: Providing sedation as ordered - Sedation is not the priority in this case as the patient has been tolerating the ventilator well without requiring sedation. D: Suctioning the patient again - Since the airway has been recently cleared, suctioning again is not necessary at this point and would not address the underlying cause of the patient's symptoms.

Correct Answer: C

Rationale: Step-by-step rationale for why choice C is correct: 1. Going to the patient�s bedside is the priority as it allows the nurse to assess the patient's condition directly. 2. By being at the bedside, the nurse can quickly evaluate the patient's breathing, vital signs, and other indicators for immediate action. 3. Direct assessment enables timely intervention and avoids delays in addressing potential life-threatening situations. 4. Checking for possible causes of the alarm and reconnection to the ventilator can follow, but assessing the patient's immediate needs takes precedence. In summary, choice C is correct because direct patient assessment is the fundamental step in responding to a ventilator alarm to ensure patient safety and timely intervention. Choices A, B, and D are incorrect as they focus on troubleshooting and technical aspects before directly assessing the patient's condition.

Correct Answer: C

Rationale: The correct answer is C: Tachycardia. Hypoxemia results in decreased oxygen levels in the blood, stimulating the body to increase heart rate to improve oxygen delivery. Tachycardia is an early sign of the cardiovascular system compensating for hypoxemia. Heart block (A) is a disruption in the electrical conduction within the heart and is not directly related to hypoxemia. Restlessness (B) is a non-specific sign and can be caused by various factors. Tachypnea (D) is an increased respiratory rate, which is a response to hypoxemia but not a direct effect on the cardiovascular system.

Correct Answer: A

Rationale: The correct answer is A: Ineffective coping related to lack of grieving. The spouse's behavior of avoiding the reality of the terminal illness and focusing on future plans indicates maladaptive coping. The cheerfulness and denial suggest a lack of acceptance and processing of the impending loss. This can lead to emotional distress and hinder the grieving process. Choice B (Anxiety related to the complicated grieving process) is incorrect because the spouse's behavior does not exhibit signs of anxiety but rather avoidance and denial. Choice C (Caregiver role strain related to feeling overwhelmed) is incorrect as the spouse does not express feeling overwhelmed but instead deflects by focusing on work. Choice D (Hopelessness related to knowledge deficit about cancer) is incorrect because the spouse's behavior does not indicate hopelessness or lack of understanding about cancer, but rather an avoidance of facing the reality of the situation.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin of 8 g/dL. Low hemoglobin levels can lead to inadequate oxygen delivery to tissues, causing respiratory distress and difficulty weaning from mechanical ventilation. This is due to reduced oxygen-carrying capacity leading to increased work of breathing. A: Cardiac output of 6 L/min is within normal range and not directly related to difficulty weaning from mechanical ventilation. C: Negative sputum culture and sensitivity indicate absence of respiratory infection but not a direct cause of difficulty weaning. D: White blood cell count of 8000 is within normal range and not a direct cause of difficulty weaning.