Health-care-associated infections involve all the following, except
A. they are only transmitted by medical personnel.
B. the patient's resident flora can be the infectious agent.
C. Escherichia coli and Staphylococci are common infectious agents.
D. medical and surgical asepsis help lower their occurrence.
E. they often involve the patient's urinary tract and surgical incisions.
Answer: A
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In your fertility clinic, you look at the lab results of a young man. He has a prostate gland the size of a golf ball, a fructose-rich semen, and 10 million sperm per ml. His sperm consist of little more than DNA, mitochondria, and a flagellum, with almost no cytoplasm. Also, he has follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in his bloodstream. Which of these is the likely cause of his fertility problems?
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