Plasma, the liquid component of blood, is mostly water.

Your patient is a 38-year-old female with a history of Crohn's disease. She is conscious and alert and complaining of abdominal pain. She describes a one-week history of increasingly diffuse, crampy abdominal pain. She also states that she has had nausea and vomiting, fever, and diarrhea the past two days. Physical examination reveals that her skin is warm and dry and that her abdomen is tender

to palpation in all quadrants with no masses or distension noted. HR = 100, BP = 118/78, RR = 14, SaO2 = 99%. Which of the following treatments is appropriate in the prehospital management of this patient? A) Diphenydramine B) Ketorolac (Toradol) C) Methylprednisolone D) Antiemetics

Receptors located on nerve endings, smooth muscle, and glandular cells that are involved in inflammation and allergic reactions are

a. adrenergic receptors. b. cholinergic receptors. c. H1 receptors. d. H2 receptors.