You are transporting a patient who had an episode of chest pain. You administered two doses of nitroglycerin which relieved the patient's pain. He asks you why the nitroglycerin alleviated the pain. Which of the following is the BEST answer to his question?
A) It decreases the heart rate which allows the heart muscle to rest more.
B) It has a sedative effect on the brain which makes you less aware of the pain.
C) It dilates the blood vessels which decreases the workload on the heart.
D) It causes the body to relax which decreases the need for oxygen.
Answer: C
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Which one of the following statements about the Incident Command System is true?
a. Each EMS agency can use its own codes and terms. b. There is a separate commander for EMS, fire, and law enforcement personnel. c. Each individual responder is accountable to two supervisors. d. Common terminology is used for all communications.
Where along the tracheobronchial tree is the isothermic saturation boundary (ISB) located in relation to its normal position in a patient who has an endotracheal tube inserted?
A. The ISB shifts upward when a person is intubated. B. The ISB shifts downward when a person is intubated. C. The location of the ISB fluctuates when a person is intubated. D. The ISB has no influence in relation to endotracheal intubation.