Correct Answer: B

Rationale: The correct answer is B: Hypoxemia and compensated respiratory acidosis. The patient's pH is within normal range (7.35), indicating compensation. The elevated PaCO2 (55 mm Hg) indicates respiratory acidosis due to inadequate ventilation, likely from COPD. The low PaO2 (65 mm Hg) indicates hypoxemia, common in pneumonia. The normal bicarbonate level (30 mEq/L) suggests metabolic compensation for respiratory acidosis. Choice A is incorrect as there is no metabolic alkalosis present. Choice C is incorrect as the patient has hypoxemia. Choice D is incorrect as the patient is showing compensated respiratory acidosis, not uncompensated.

Correct Answer: C

Rationale: The correct answer is C: True collaboration. In this scenario, the physician consults with the nurse to understand the situation and collaborates on the best course of action for the patient's care. This demonstrates effective teamwork, communication, and mutual respect between healthcare professionals, which are key components of a healthy work environment. Choice A (Skilled communication) is not the best answer because while communication between the physician and nurse is important, the focus in this scenario is more on collaboration and teamwork. Choice B (Appropriate staffing) is not the best answer as the scenario does not specifically address staffing levels but rather the interaction and collaboration between the physician and nurse. Choice D (Recognizing signs of imminent stroke and paging the physician) is incorrect as it is unrelated to the scenario described, which is about the physician and nurse collaborating on patient care.

Correct Answer: C

Rationale: The correct answer is C: Anxiety related to lack of knowledge about normal grieving. This is because the patient is expressing uncertainty and seeking validation for their feelings, indicating a lack of understanding about the grieving process. Choice A is incorrect as hopelessness typically involves feelings of despair and loss of motivation, which are not explicitly stated by the patient. Choice B is incorrect as complicated grieving involves specific unresolved issues related to the loss, which the patient did not mention. Choice D is incorrect as chronic sorrow is typically associated with ongoing feelings of sadness and longing, which are not explicitly expressed by the patient.

Correct Answer: A

Rationale: The correct answer is A: Alarm stage. The husband's rapid heart rate indicates the initial alarm reaction to stress, characterized by physiological arousal. This stage involves the body's fight-or-flight response to a stressor. In this scenario, the husband is experiencing the physiological effects of the stressful situation, such as the auto accident and loss of a limb. The other choices are incorrect because: B: Exhaustion stage occurs if stress continues without relief, leading to depletion of resources and increased vulnerability to illness. C: Resistance stage is the body's attempt to adapt and cope with the stressor after the initial alarm reaction. D: Adaptation stage is not a recognized stage in the general adaptation syndrome model.

Correct Answer: A

Rationale: The correct answer is A: Apply external cooling device. Therapeutic hypothermia is a treatment used to protect the brain after cardiac arrest by lowering the body temperature. The nurse should use external cooling devices, such as cooling blankets or ice packs, to achieve and maintain the desired temperature. This method allows for precise temperature control and monitoring. Checking mental status every 15 minutes (choice B) is not the priority as maintaining the temperature is crucial. Avoiding sedative medications (choice C) may be necessary to accurately assess the patient's neurological status. Rewarming if the temperature is <91°F (32.8°C) (choice D) is incorrect as the goal is to maintain hypothermia for a specific duration before gradual rewarming.