Correct Answer: D

Rationale: Step 1: Restlessness is an early sign of hypoxemia due to the body's response to low oxygen levels. Step 2: Restlessness occurs as the body tries to increase oxygen intake. Step 3: Other choices are incorrect because clubbing and cyanosis are late signs, while hypotension is not a specific early sign of hypoxemia.

Correct Answer: C

Rationale: The correct answer is C: Suggesting that he meet with the hospital chaplain. This approach is best as it addresses the young man's emotional and spiritual needs during a difficult time. The chaplain can provide comfort, support, and guidance in coping with his girlfriend's situation. This option focuses on holistic care and acknowledges the importance of emotional well-being. A: Recommending that he go home and rest is not the best approach as it dismisses the young man's emotional distress. B: Giving him unrestricted visiting hours with the patient may not be appropriate as it can be overwhelming and may not address his emotional needs effectively. D: Recommending that he ask the doctor to evaluate the patient's pain control measures is important but does not directly address the young man's emotional needs in this situation.

Correct Answer: B

Rationale: The correct answer is B: Obtain a Glasgow Coma Scale score. During the primary survey, assessing the patient's level of consciousness is crucial as it helps determine the severity of the injury and guides further management. The Glasgow Coma Scale is a standardized tool used to assess the level of consciousness based on eye opening, verbal response, and motor response. It provides valuable information about the patient's neurological status. A: Obtaining a complete set of vital signs is important but assessing the level of consciousness takes priority in this scenario. C: Asking about chronic medical conditions is important but not as critical as assessing the patient's level of consciousness during the primary survey. D: Attaching a cardiac electrocardiogram monitor is not necessary during the primary survey unless there are specific indications of cardiac issues, which are not evident in this case. In summary, obtaining a Glasgow Coma Scale score is essential for assessing the patient's level of consciousness and determining the severity of the injury during the primary survey.

Correct Answer: A

Rationale: The correct answer is A: high Fowler's position. This position promotes optimal lung expansion by allowing the chest to expand fully, improving oxygenation. It also helps reduce the work of breathing. Side lying with the head of the bed elevated (B) may not provide the same level of lung expansion. Sitting in a chair (C) may not be suitable for a patient in acute respiratory failure as it may not provide adequate support for breathing. Supine with the bed flat (D) can worsen respiratory distress by limiting lung expansion.

Correct Answer: C

Rationale: Step-by-step rationale for choice C: 1. Advance directives should be made by the patient to reflect their wishes. 2. Developing it before illness ensures clarity and avoids confusion. 3. Patients may not be able to make informed decisions in critical conditions. 4. Family or surrogates may not accurately represent the patient's wishes. Summary: A - Family in critical condition may not know the patient's wishes. B - Hospital admission process may be too late for clear decision-making. D - Healthcare surrogate may not fully understand the patient's preferences.