A client who has sustained a basilar skull fracture exhibits blood-tinged drainage from his nose. After establishing a clear airway, administering supplemental O2, and establishing IV access, the next nursing intervention would be to:

C Gently suction the nasal drainage to protect the airway A Pass a nasogastric tube through the left nostril D Perform a halo test and glucose level on the drainage B Place a 4 x 4 gauze in the nares to impede the flow