A nurse caring for a client removes the client's oxygen as prescribed. The client is now breathing what percentage of oxygen in the room air?

Correct Answer: B

Rationale: The correct answer is B (21%). Room air contains approximately 21% oxygen. By removing the supplemental oxygen, the client is now breathing the oxygen content present in the surrounding air. Choices A, C, and D are incorrect as they do not reflect the standard oxygen concentration in room air. Oxygen concentration in room air is typically around 21%, making choice B the most accurate option.

Correct Answer: D

Rationale: The correct answer is D: Ethambutol. Ethambutol is not used in the treatment of inhalation anthrax. The treatment of choice for inhalation anthrax is a combination of antibiotics such as ciprofloxacin, doxycycline, and sometimes vancomycin. Ethambutol is primarily used in the treatment of tuberculosis, not anthrax. It is important for the nurse to be knowledgeable about the appropriate medications for specific conditions to provide effective care.

Correct Answer: A

Rationale: The correct answer is A. Applying an immobilization device after physician evaluation helps stabilize the rib and reduce pain. B (discouraging deep breaths) is harmful as it can lead to atelectasis. C (advising against analgesics) is incorrect because pain management is essential. D (increasing fluid intake) is secondary and depends on the presence of pulmonary complications.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.