While Triaging Clients in a Crowded Emergency Department,a Nurse Assesses

While triaging clients in a crowded emergency department,a nurse assesses a client who presents with symptoms of tuberculosis.Which action should the nurse take first?

A) Apply oxygen via nasal cannula.
B) Administer intravenous 0.9% saline solution.
C) Transfer the client to a negative-pressure room.
D) Obtain a sputum culture and sensitivity.