A male client visits a fertility clinic after one year of attempting unsuccessfully to impregnate his wife. Which of the following is a risk factor associated with male infertility?
A) Azospermia or oligospermia
B) 2 to 5 mL of semen ejaculated
C) Sperm density about 20 million/mL
D) Morphology of sperm within normal limits
A
Feedback:
Azospermia or oligospermia (no or few sperm cells produced) is a risk factor affecting male infertility. Normally, the volume of semen ejaculated needs to be about 2–5 mL, with a density of sperm at about 20 million/mL. In addition to the number of sperm, the motility (movement), viability, and morphology (shape) of the sperm must be within normal limits.
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