Ultraviolet rays at 365nm can detect blood and serum
A blood test confirms many infections and conditions and also prompts the doctor about the patient's overall health.
A direct donation occurs when a patient's ABO and Rh compatible family members and/or friends donate blood for his or her upcoming procedure. Otherwise a patient has to be given blood which has been processed atleast for a week before transfusing on a patient.
CBC, C-Reactive protein, LFT and KFT and cancer markers are the best blood test that should be done yearly.
They test for deficiencies, infections and cancers.