Thanks for all the wonderful information. I am headed to OBLC next year as a 71A laboratory science officer. I realize this is primarily a nursing forum, but I would love to learn as much as possible about the types of day-to-day duties performed by 71A's. If anyone has experience in this area please share what you can. Also, does anyone have a breakdown on how many push-ups, sit-ups, ect. I will have to do in a day's time? Thanks and have a great day!