Which one of the following setups on the bag-valve mask (BVM) will enable the EMT to deliver the highest concentration of oxygen to the patient?
A) BVM with room-air oxygen being used by two EMTs
B) BVM attached to oxygen at 15 lpm
C) BVM with oxygen reservoir attached, receiving oxygen at 15 lpm
D) BVM with oxygen reservoir attached
C
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You are treating a patient with a suspected fractured ankle. The patient appears to be in a lot of pain and is uneasy. As you are getting ready to splint the patient's leg, he asks you if it is going to hurt. Which of the following is the BEST response?
A) "If you are stressed out like this, it is going to hurt a lot more." B) "Relax, this is not a painful procedure." C) "I will do my best, but it may hurt while we put the splint on." D) "It does not matter; we have to do it anyway."
Afterload is increased following alpha-1 stimulation because of:
A) decreased preload. B) arteriolar constriction. C) increased contractility. D) widespread vasodilation.