Answer:
Obtain the specimen after a period of abstinence from ejaculation of 2 to 5 days.
Explanation:
The male must ejaculate into a clean container or a plastic sheath that does not contain a spermicide. An ejaculated sample should be obtained after a period of abstinence to get the best results. He should avoid exposing the specimen to extremes of temperature, either heat or cold. The specimen should be taken to the laboratory within 2 hours of ejaculation.
In the lungs. The carbon dioxide/oxygen diffuses through the capillaries surrounding the alveoli (grape like structures) in the lungs
