Question

how is blood test useful to diagnose the diseose?explain with a daily life situation​

Answer 1

Answer:

As we know that blood is a fluid connective tissue , it freely flows from one part to the other part of the body .

2) Any pathogenic organism which enters our body will be in the body stream and can be detected by testing the blood sample .

3) We know that blood transports gases , digested food , hormones and various waste materials from different parts of the body . Hence it is very easy to check all these components levels whether they are in normal or abnormal level , just by taking the blood sample testing .

4) So, doctors prefer to go for a blood test before diagnosing any disease . Complete Blood Picture (CBP) gives the ampule information about the patient and helps in diagnosing the disease. Sry I dont know an example..