M1 receptors are present on which of the following?
a. Heart, postganglionic parasympathetic nerves
b. Parasympathetic ganglia, nasal submucosal glands
c. Airway smooth muscle, submucosal glands
d. Postganglionic cholinergic nerves, possible effect on CNS
ANS: B
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When treating a confused patient who has been exposed to high temperatures, which finding is most concerning?
A) SpO2 94% B) Bounding radial pulse C) Cramping in arms, legs, and abdomen D) Hot and dry skin
You respond to a 9-year-old boy who was injured in the terrain park. He is complaining of pain in his right wrist. Upon examination you note deformity and swelling of the right wrist, pinkness of the right hand, and a strong radial pulse. Which of the following actions would be part of the proper care for this boy?
a. Straighten the wrist to promote blood flow to the hand. b. Maintain the wrist below the level of the heart to decrease swelling. c. Apply a cold pack to the wrist to reduce swelling. d. Massage the wrist gently to decrease the pain.