What is the best substance to use for cleaning oil from microscope objectives?
a. Acetone
b. Alcohol-based products
c. Water
d. Xylene
ANS: B
Microscope lenses should be cleaned using alcohol-based products rather than hazardous solvents such as acetone or xylene. Water will not remove oil from lenses and will only cause it to become smudged.
Health Professions
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Which is the MOST proximal and lateral of the five adductor muscles?
a. Adductor longus b. Adductor brevis c. Pectineus d. Gracilis
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An unconscious patient aspirated gastric contents. Which of the following anaerobic microorganisms would likely now be found in her lower respiratory tract?
1. Legionella pneumophila 2. Pseudomonas aeruginosa 3. Peptococci 4. Bacteroides fragilis a. 1, 3 b. 3, 4 c. 1, 3, 4 d. 1, 2, 3, 4
Health Professions