Esteban works in a nursing home and notices that quite a few patients have had episodes of C. difficile diarrhea (CDD), which he knows to be one of the most common types of infectious diarrheas in the U.S. Why might CDD be so common in nursing homes?
A) Staff are typically overworked and may be tired and careless, so patients do not get needed toileting assistance.
B) Overcrowded conditions and shared dining and bathroom facilities may increase transmission.
C) CDD is associated with the eradication of native intestinal flora with broad-spectrum antimicrobials and overuse of PPI and H2 blocker therapy.
D) The poor personal hygiene of habits of some patients, particularly those with dementia, increases everyone's risk.
C
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A combining form that means eardrum (tympanic membrane) is ________.
Fill in the blank(s) with the appropriate word(s).
Genu valgum and genu varum refer to a knee that:
A) can be hyper-rotated medially and laterally, respectively. B) can be hyperflexed and extended, respectively. C) has a large Q-angle (knock-knees) and a small Q-angle (bow-legged), respectively. D) can be displaced medially (because of a weak tibial collateral ligament) and laterally (because of a weak fibular collateral ligament), respectively. E) can be displaced posteriorly and anteriorly, respectively.
Which of the following directional terms refers to the tip or summit of an organ?
A) medial B) lateral C) base D) apex
Percy needs an antihistamine to help with his pollen allergies, but he has some complicated mental work to do and therefore, would like to use a non-drowsy medication. What antihistamine is less likely to make Percy less drowsy?
A) chlorpheniramine B) fexofenadine C) azelastine D) clemastine