Which of the following is the most accurate description of rhonchi?
a. Caused by inflamed pleural surfaces rubbing against each other
b. High-pitched crackling sounds that do not clear with coughing; caused by air passing through moisture
c. High-pitched whistling sounds caused by air moving through passages narrowed by mucus or bronchospasm
d. Loud, low, coarse sounds that resemble snoring and often clear with coughing; caused by a buildup of mucus or fluid in the trachea or large bronchi
Answer: d. Loud, low, coarse sounds that resemble snoring and often clear with coughing; caused by a buildup of mucus or fluid in the trachea or large bronchi
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The serum ferritin is used more often than bone marrow or liver biopsies to assess iron stores because it is:
a. A more direct measurement b. More accurate c. More precise d. Less invasive
Why is it important that a grease duct system not include any dips or horizontal runs?
A. So that the dampers work properly in case of fire B. So that smoke and heat will rise out of the duct system C. To prevent any areas where grease can become trapped D. In order to maximize the chimney effect of the duct during a fire.