The nurse knows to monitor the patient's iv site for signs of phlebitis. why is it most important to discontinue the iv site if phlebitis is evident?

 If the nurse seen an evidence of Phlebitis there’s a need to discontinue because Phlebitis can be dangerous because blood clots can occur. Phlebitis or venitis is the inflammation of a vein, usually in the legs. It most commonly occurs in superficial veins. Phlebitis often occurs in conjunction with thrombosis. 

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the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.