Correct Answer: A

Rationale: The correct answer is A: coma. High ammonia levels can lead to hepatic encephalopathy, causing impaired brain function and potentially leading to coma. Edema (B) is typically associated with fluid retention, not high ammonia levels. Hypoxia (C) is a condition of low oxygen levels, not directly related to high ammonia levels. Polyuria (D) is excessive urination, which is not a common sign of high ammonia levels.

Correct Answer: A

Rationale: The correct answer is A: Assess airway. In caring for a client with a traumatic head injury, the first priority is to ensure there is a clear airway to maintain oxygenation and ventilation, which is crucial for brain function. If the airway is compromised, it can lead to hypoxia and further brain damage. Providing pain relief (B) is important but not the immediate priority. Monitoring intracranial pressure (C) is essential but comes after ensuring a patent airway. Maintaining a quiet environment (D) can help reduce stimulation, but it is not as critical as assessing the airway for immediate intervention.

Correct Answer: A

Rationale: The correct answer is A, contusion. A contusion is a soft-tissue injury caused by blunt force resulting in bruising, without breaking the skin. This is different from the other choices. Strain (B) refers to an injury to a muscle or tendon due to overstretching. Sprain (C) is an injury to a ligament from overstretching. Dislocation (D) involves the displacement of bones at a joint, not a soft-tissue injury. Therefore, the term that specifically aligns with a soft-tissue injury from blunt force is contusion.

Correct Answer: B

Rationale: The given ABG values fall within normal ranges, indicating homeostasis. The pH is within the normal range (7.35-7.45), indicating acid-base balance. The PO2 is slightly lower but still within the normal range (80-100 mmHg). PCO2 falls within the normal range (35-45 mmHg), showing effective ventilation. The HCO3 level is also within the normal range (22-26 mEq/L), indicating proper kidney function. Therefore, all values are within normal limits, reflecting a state of homeostasis. Other choices are incorrect as they suggest imbalances in acid-base status, which is not seen with these values.

Correct Answer: D

Rationale: The correct answer is D: Administer morphine. Administering morphine is the first intervention for a client experiencing a myocardial infarction (MI) to help relieve pain and reduce anxiety. Oxygen may not be necessary if the client is not hypoxic. Administering aspirin is important but usually follows morphine. Monitoring ECG is crucial, but not the first intervention to address the immediate symptoms of MI.