Microvascular complications of diabetes include all of the following, EXCEPT:

• A. Nephropathy.
• B. Neuropathy.
• C. Hypertension.
• D. Retinopathy.

Answer: (C)

Microvascular complications of diabetes primarily involve the small blood vessels and can lead to significant health issues over time. Nephropathy, neuropathy, and retinopathy are all direct complications associated with damage to the microvasculature.

Nephropathy refers to kidney damage resulting from high blood sugar levels, which affect the small blood vessels in the kidneys, leading to impaired filtering and ultimately renal failure if not managed properly. Neuropathy involves nerve damage due to microvascular changes, often resulting in pain, tingling, or loss of sensation, particularly in the extremities. Retinopathy describes damage to the small blood vessels in the retina, which can lead to vision loss and blindness.

Hypertension, while it is a common comorbidity in patients with diabetes and can worsen the complications of diabetes, is categorized as a macrovascular issue rather than a microvascular one. It primarily affects larger blood vessels, increasing the risk of heart attack and stroke, rather than the small vessels directly impacted by the aforementioned complications.

Thus, the presence of hypertension as an option indicates it is not a microvascular complication of diabetes, making it the correct choice for this question.