Leptospirosis is considered infectious but is not transmitted from person to person. Generally, a disease like this is caused by an infectious agent and not spread between people.Leptospirosis, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.enerally, a disease like this is caused by an infectious agent and not spread between people. Leptospirosis, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
Blood transfusions, pregnancy, previous transplant(s) or a current infection can cause your immune system to be more aggressive. Crossmatch Testing â When a kidney is available, your blood and the blood of the donor kidney are tested. With a negative crossmatch, (no reaction) you are compatible with the donor. A positive crossmatch (reaction) the kidney will not work for you because it is incompatible.
Tests to check kidney function. When kidney function is decreased, substances such as urea, creatinine, and certain electrolytes begin to build up in the blood. The following tests measure levels of these substances to show how well your kidneys are working. The doctor can use the GFR to regularly check how well the kidneys are working and to stage your kidney disease. 2  A blood urea nitrogen (BUN) test measures how much nitrogen from the waste product urea is in your blood. 3  BUN level rises when the kidneys aren't working well enough to remove urea from the blood.