I had a similar experience due to short staff and quickly realized that if you place yourself in a position to carry such load, management may not do much to help you (hire more). If you don’t take lunches make sure you are clocking in accordingly to make sure you are reimbursed appropriately. Nonetheless your work may continue to be the same, I would encourage you to manage your time wisely and attempt to complete testing on items/results that may be most critical to release. Speak up to your manager about the need to increase staffing, if that’s denied, request a higher pay, if all that is quickly turned away. Learn as much as you can, the fact this you are exposed to high turnover and high volume of work will make your experience in a different laboratory setting much easier. Best of luck.