Diesel Exhaust Fluid (DEF) is an emissions control liquid required by modern diesel engines. It is injected into the exhaust stream. DEF is never added to diesel fuel. It is a non-hazardous solution of 32.5% urea in 67.5% de-ionized water.
Side effects from cardiac stress testing may include. Palpitations, chest pain, myocardial infarction, shortness of breath, headache, nausea or fatigue. Adenosine and dipyridamole can cause mild hypotension. As the tracers used for this test are carcinogenic, frequent use of these tests carries a small risk of cancer.
All stress tests have 2 parts: the Stress and the Test. The Stress stresses the heart to see if it has adequate blood flow. The stress could be either walking very fast on an inclined treadmill or injection with drugs that stress the heart. The drugs that are typically used are dobutamine, persantine or adenosine.