You are called to the residence of a 78-year-old widow who lives alone with no children. She was found by neighbors on the floor of the living room. She has fallen and fractured her left humerus. She is disoriented and responds to verbal stimuli only. She has a blood pressure of 78/40 and a pulse of 48. She has a history of high blood pressure and takes medication for it. She also takes
medication for high cholesterol and a medication to slow down a fast heart rate. Emergency Medical Responders find the medication bottles in the medicine cabinet and they are empty. Your partner suspects that she accidentally overdosed on her medications. Do you agree or disagree?
A) Agree. It is obvious that the broken arm is causing the decreased heart rate.
B) Disagree. The vital signs indicate that she has not taken her medication in several days.
C) Disagree. The patient's vital signs are related to her broken arm.
D) Agree. The vital signs agree with this hypothesis.
D
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Which of the following statements regarding silver is correct?
A. Silver dressings cost about the same as traditional dressings. B. Slow-releasing silver agents maintain their antimicrobial properties for up to 7 days. C. Silver-containing roll gauzes are effective in combating wound infections even when not used as the contact layer. D. Because resistance to silver is common, its use in wound care is limited.
Endogenous surfactant is produced by
a. alveolar type II cells. b. goblet cells. c. alveolar type I cells. d. macrophages.