The fine needle aspiration cytology test (FNAC) looks at what goes on where - for example, your DH's sperm may start off really fantastic but break down quickly. If you have to do ISCI then this is important to know.

The two different labs measure things very differently (just look at how two different labs measure blood tests), you need a cytologist/biochemist that your FS can discuss this with in person; I know that several scans and X-rays need special interpretation and you can't do that with a sample tested in another hospital, a semen analysis is just the same. Also, if the sperm was sent away and it wasn't kept cold (which I believe is needed for long storage - but I'm sure the hospital would know more as I could be wrong) then it will break down more. Some breaking down is normal and if the test was done after a few days then of course it will have a higher level of DNA fractures and other problems.

Hope this answers some questions for you.