Blood tests typically include checking for normal red blood cell levels, normal white blood cell levels, and sometimes normal platelet counts and coagulation parameters.
Of course, in addition, the blood should be checked for electrolytes, calcium and phosphorus, and sometimes for glutathione and glutathione, two enzymes that reflect the normal function of the patient’s liver.
Usually, most blood tests are done to check the red blood cells, white blood cells, and platelets in the blood. If you have a blood disorder, such as allergic purpura, leukemia, or idiopathic thrombocytopenic purpura, this can lead to abnormal blood test results.
Also, there are some habits that normally can cause a failed blood test. If you drink water or eat before the blood test, or take medications before the blood test, it can also cause the blood test to fail.