After being stung on the leg by a jellyfish, a man complains of severe pain to his leg, dizziness, and difficulty breathing. He has a red rash covering his trunk and his blood pressure is 90/50 mm Hg. The EMT should: Select one: a. remove the stingers from his leg by scraping them with a stiff object. b. administer oxygen and epinephrine and prepare for rapid transport. c. apply warmth to the sting area and cover it with a dry sterile dressing. d. begin transport and immerse his leg in hot water to help reduce pain.