Answer to Question 1
A
Droplet precautions are instituted in the case of influenza. For known or suspected infections caused by microbes transmitted by droplets produced by coughing, droplet precautions are insti-tuted.
Contact precautions are instituted for C. difficile.
Airborne precautions are instituted for pulmonary tuberculosis.
Airborne precautions are instituted for measles.
Answer to Question 2
C
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A The cornea is very sensitive. Drops instilled onto the cornea would stimulate the blink reflex.
B The outer canthus would not hold the eye drop, and medication would be wasted; nor would the medication be distributed evenly across the eye.
C Eye drops should be instilled into the lower conjunctival sac. The conjunctival sac normally holds one or two drops and provides even distribution of medication across the eye.
D The opening of the lacrimal duct is not the correct site for eye drops to be instilled. It would not provide even distribution of drops across the eye, and medication would most likely be wasted because this area could not contain the eye drops.
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