A 56-year-old man comes to the office for upper abdominal pain occurring with meals for the last month. His symptoms improve when fasting. The patient's other medical problems are coronary artery disease and osteoarthritis. His medications include aspirin, simvastatin, and acetaminophen as needed. The patient drinks 1 or 2 beers daily but does not use tobacco or illicit drugs. Upper endoscopy is performed and reveals a gastric ulcer with a smooth, rounded border and an exudative base. A biopsy of the ulcer is taken and placed into a urea-containing solution that includes phenol red, a pH indicator. Thirty minutes later, the solution has turned pink, indicating a pH increase. This test result suggests that which of the following processes is occurring? A Clonal proliferation of glandular cells
B. Cyclooxygenase inhibition leading to mucosal damage
C. Enzymatic production of ammonia
D. Gastrin hypersecretion leading to acid overproduction
E. Parietal cell destruction due to autoimmune disease Submit​

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

Which of the following statements is true? a. poll data show that a majority of americans accept gay and b. open discussions of sexuality are welcomed by all families, c. homophobic stereotypes rarely occur in the media anymore. lesbian relationships. religious grougs, and social networks. d. poll data show that bisexuality and homosexuality are viewed positively by all parts of society

A46-year-old man with a history of hypertension and hypercholesterolemia visits the physician for a routine followup. the patient's job involves a lot of travelling, and he admits to occasionally forgetting to take his medications with him when he travels. he complains of several episodes of chest pain in the past few months. the pain is sharp in nature, mainly over his lower chest and epigastrium, and tends to come on when walking. he believes these episodes are due to indigestion and has been taking antacids. there is a family history of heart disease, and his father died of a heart attack at age 48. on physical examination, his blood pressure is 150/80 mmhg and heart rate is 86/min. his lungs are clear to auscultation. cardiac auscultation reveals normal rate and rhythm, without rubs, gallops, or murmurs. there is no pedal oedema. he is sent for an exercise stress test. five minutes into the test, he develops st depression of 3mm in leads v1-v5. the st segment depression is greater than 0.12 seconds in duration and the stress test is stopped. which of the following is the most appropriate next step in management? - coronary angiography- holter monitor- no further tests are required- repeat stress test with thallium- upper gastrointestinal endoscopy