Individual tests

IgM (Immunoglobulin M) are your immune system's largest antibodies. They provide general but short-term protection against new infections. This test checks immune system health if you are frequently sick with infections or diarrhea and helps detect autoimmune disorders and certain types of cancer.
Prothrombin is a protein from your liver that acts as a clotting (coagulation) factor. If your blood clots too slowly, you may bleed excessively after an injury. If your blood clots too fast, the clots may harm your heart or brain. A prothrombin time (PT) test measures how long it takes for a clot to form.
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