While triaging patients in a crowded emergency department, a nurse assesses a patient who presents with symptoms of appendicitis. What action should the nurse take first?

Choice A reason: Transferring to a negative-pressure room is appropriate for airborne infections like tuberculosis, not appendicitis, which is a localized abdominal condition. Appendicitis requires fluid resuscitation and surgical evaluation, not isolation, as it poses no infectious risk, making this action irrelevant. Choice B reason: Administering IV 0.9% saline is the priority in appendicitis to correct dehydration from vomiting or fever and maintain perfusion before surgery. Fluid resuscitation stabilizes the patient, preventing hypovolemia and supporting organ function, especially in cases of potential perforation, making this the first action. Choice C reason: Obtaining a sputum culture is irrelevant for appendicitis, a surgical condition caused by appendix obstruction, not a respiratory infection. Sputum cultures are used for pulmonary infections like pneumonia, making this action inappropriate for addressing the patient’s abdominal symptoms and urgent needs. Choice D reason: Applying oxygen via nasal cannula is unnecessary unless the patient shows hypoxia, which is not typical in appendicitis. The priority is fluid resuscitation to address dehydration and prepare for surgery, as appendicitis primarily causes localized abdominal issues, not respiratory compromise.