When incompatible blood is given, antibodies and complement in the recipient plasma attack the antigens on the donor RBC. Hemolysis ensues The antigen-antibody complex activate the Hageman factor (factor XII), which acts on the kinin system to produce bradykinin
Still it is not advisable to take it after the expiry date written on the bottle. This is just for your information to let you know that you are safe. Anyway Saline Nasal spray is not going to do any harm even if you used an expired one. So forget about it.
Why do my AED electrode pads expire? AED electrode pads are comprised of an adhesive gel and tin. Once they exceed their expiration date, they may not be able to function properly or will lose their ability to âstickâ to a victim. Manufacturers cannot guarantee that the pads will function past their expiration date.