Answer to Question 1
ANS: B
Factors that influence male fertility include participation in active contact sports; smoking; and wearing tight, constrictive clothing. Brief-style underwear are tighter than boxer shorts, and this is one question the nurse could ask about clothing that might yield some useful information. Exercise does not specifically address active contact sports. Alcohol use and circumcision are not related.
Answer to Question 2
ANS: C
In each millimeter of ejaculate, there are approximately 120 million sperm, 40 of which are motile.