Final answer:
J.R. presents symptoms of diabetes mellitus, including polyuria, polydipsia, and polyphagia. Proper diagnostic tests are necessary to confirm the diagnosis and determine the type of diabetes.
Step-by-step explanation:
J.R. is displaying classic symptoms associated with diabetes mellitus. These symptoms include polyuria (excessive urine production), polydipsia (excessive thirst), polyphagia (increased appetite), weight loss, fatigue, and blurred vision.
Diabetes can affect multiple systems within the body, and it is crucial for J.R. to receive a proper diagnostic workup, which may include a fasting glucose test, an A1c test, and/or an oral glucose tolerance test to confirm the diagnosis and distinguish between type 1 and type 2 diabetes.