In nature, methane is produced by the anaerobic bacterial decomposition of vegetable matter under water (where it is sometimes called marsh gas or swamp gas). Wetlands are the major natural source of methane produced in this way.
What are the exams and tests for renal artery stenosis? Blood tests. Screening blood tests may be done as part of the general evaluation of high blood pressure and may include a complete blood count, electrolytes, kidney function tests, and a urinalysis. Imaging. Renal artery narrowing can be detected with ultrasound or computerized tomography angiography or arteriography.
This is involved in adrenal, kidney, bladder, and bowel function. Elevated levels are seen in kidney and adrenal disorders, as well as bowel dysfunction. Decreased levels can be seen... Electrolyte-Chloride. This test is used to diagnose autoimmune diseases such as lupus, scleroderma, and rhematoid arthritis.