The nurse is caring for a patient who is being treated for extensive burns.The nurse notes the presence of coffee-ground material in the Salem sump catheter.The nurse correctly recognizes that the probable cause is:

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Blood that has been in contact with gastric juices looks like coffee grounds.The physiologic stress ulcer appears in patients who are severely stressed by extensive trauma for a lengthy period of time.Prolonged physiologic stress produces what is known as a physiologic stress ulcer,which is believed to be the result of unrelieved stimulation of the vagus nerve and decreased perfusion to the stomach.A stress ulcer is pathologically and clinically different from a chronic peptic ulcer.It is more acute and more likely to produce hemorrhage.

The Nurse Is Caring for a Patient Who Is Being