D.K. is an 18-year-old high school student who began to experience weight loss despite a ravenous appetite and resulting increased dietary intake. She has to make frequent trips to the bathroom to urinate and has difficulty concentrating on her work because of fatigue. She drinks large volumes of coffee to help with a constant dry mouth and to combat her fatigue. At a clinic appointment, it was noted that D.K.’s weight has dropped from 140 to 128 pounds. She is 5 feet 7 inches tall. Select a potential diagnosis for D.K. and describe the pathophysiology of that diagnosis. How does the pathophysiology explain D.K.’s symptoms?

D.K. is an 18-year-old high school student who began to experience weight loss despite a ravenous appetite and resulting increased dietary intake. She has to make frequent trips to the bathroom to urinate and has difficulty concentrating on her work because of fatigue. She drinks large volumes of coffee to help with a constant dry mouth and to combat her fatigue. At a clinic appointment, it was noted that D.K.’s weight has dropped from 140 to 128 pounds. She is 5 feet 7 inches tall. Select a potential diagnosis for D.K. and describe the pathophysiology of that diagnosis. How does the pathophysiology explain D.K.’s symptoms?