Answer to Question 1
D
Shellfish and mollusks can be contaminated by living in feces-contaminated water. Drug use and unprotected sex are not part of the etiology of hepatitis A but are for hepatitis B. Travel to Cana-da is not associated with hepatitis A.
Answer to Question 2
A, B, C
The patient should avoid sneezing, rest for several hours, and avoid rubbing the nose. The patient should not attempt to remove clotted blood or blow the nose.