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Fructose is the energy source for sperm motility. A positive fructose is considered normal. Azoospermia and fructose negative results may indicate an absence or obstruction of seminal vesicles / vas deferens.
Specimen must reach the Lab within 1 hour of collection. Condoms are not acceptable. Patient should refrain from ejaculation for 2-7 days (ideally 3 days) prior to collection. Specimen must be obtained by masturbation only. Immediately prior to collection