Correct Answer: B

Rationale: The correct answer is B: Vitamin B12. Strict vegetarians, especially those who exclude all animal products, are at risk of Vitamin B12 deficiency as it is primarily found in animal products. Vitamin C (A) deficiency is more common in those with poor fruit and vegetable intake. Vitamin E (C) deficiency is rare and usually seen in individuals with specific medical conditions. Magnesium (D) deficiency can occur in individuals with poor dietary intake or certain medical conditions, but it is not the primary concern for strict vegetarians.

Correct Answer: A

Rationale: The correct answer is A: Assess vital signs. This is the first intervention because it provides immediate information on the client's condition and helps determine the severity of the pain. Monitoring vital signs can reveal signs of shock, dehydration, or other serious complications. Performing a CT scan (B) is not the first priority as it requires time and resources. Monitoring urine output (C) may be important but not as immediate as assessing vital signs. Monitoring for signs of shock (D) can be included in assessing vital signs but is not the primary intervention.

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: Administer bronchodilators. In an acute asthma attack, the priority is to open the airways and improve breathing. Bronchodilators work quickly to relax the muscles around the airways, allowing the client to breathe easier. Corticosteroids are used for long-term control, not immediate relief. Oxygen therapy may be needed if the client's oxygen levels are low. Pain medication is not indicated for an acute asthma attack as the primary issue is airway constriction, not pain. Administering bronchodilators first helps address the immediate breathing difficulty in an asthma attack.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen. This is the most important intervention for a client with an obstructed airway because it helps to ensure that the patient is receiving adequate oxygen supply to prevent hypoxia. Oxygen therapy can help maintain oxygen saturation levels and support proper gas exchange in the lungs. Monitoring respiratory rate (B) is important but not as critical as ensuring oxygen supply. Administering morphine (C) is contraindicated as it can depress respiratory function further. Administering fluids (D) is not the priority in managing an obstructed airway.