so seeing how alot of you have been an OB Tech... what kind of math do you have to know? cause i got hired on as an OB and they are giving me a math test and they said its applied math... so i was trying to find out what kind of math applied to an OB. Also... OBs they dont do any charting or have to look off charts do they?? like do they have to know and abbrieviations? thank you