Semen analysis?

Meghan
So I went to the doctor today and she wants to do a semen analysis. I asked her about directions and she said there will be directions with the sample container. So the nurse comes in and gave me the container and a peice of paper. After I left I realized there were no directions! 😩 So ladies who have done this before please help me out!
How long and the semen be left in the container before I turn it in? Does it need to be refrigerated or anything?  Can the semen only be collected through masterbation/hand job? Does it matter when the last ejaculation before sample was? How long does it take to get the results?
Any thing else I should know would be greatly appreciated! Thank you!