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.
The Vascular Lab provides non-invasive diagnostic ultrasound tests on arteries and veins, which our doctors use to confirm a diagnosis and determine a course of treatment. These tests may also be used to track disease progression over time. There are generally two kinds of arterial vascular disease: occlusive and aneurysmal.