The 24-year-old female patient presents to the emergency department with hematemesis. She rarely drinks alcohol and has no known medical conditions. She is afebrile and her laboratory tests are normal, though she has signs of dehydration. The physician diagnoses the patient with Mallory-Weiss Syndrome. The nurse assesses the patient for which conditions?

A 22-year-old patient complains of frequent diarrhea, mucous discharge, rectal bleeding, lower abdominal pain, and tenesmus. On endoscopy, inflammation is found only in the descending colon and rectum with no healthy mucosa between the lesions. The nurse begins planning education for the patient about which condition?

Which term denotes the heart’s dominant pacemaker?