Q: DEFINE MASSIVE BLOOD LOSS. DEFINE MASSIVE BLOOD TRANSFUSION. ENUMERATE BLOOD CONSERVATION STRATEGIES DURING SURGERY A: Your credits are exhausted. Your daily credits reset tomorrow, or you can purchase a top-up for more. Q: Why A: Your credits are exhausted. Your daily credits reset tomorrow, or you can purchase a top-up for more. Q: I paid for credits A: Your credits are exhausted. Your daily credits reset tomorrow, or you can purchase a top-up for more.