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Question 9#

All of the following are true concerning priapism EXCEPT:

A. Priapism is defined as a persistent erection for >4 hours unrelated to sexual stimulation
B. Etiologic factors include sickle cell disease, malignancy, total parenteral nutrition, penile shaft fractures
C. Low flow priapism can be confirmed with a penile blood gas determination
D. Treatment may require injection of phenylephrine

Correct Answer is B

Comment:

Priapism is a persistent erection for more than 4 hours unrelated to sexual stimulation. Risk factors include sickle cell disease or trait, malignancy, medications, cocaine abuse, certain antidepressants, and total parenteral nutrition. Low-flow priapism can be confirmed with a penile blood gas of the cavernosal bodies demonstrating hypoxic, acidotic blood. Injection of phenylephrine (up to 200 mg in 20 mL normal saline) into the corporal bodies may be required.