Question

(A): Diabetes mellitus is a metabolic syndrome characterised by hyperglycemia.
(R): Glycosuria occur when blood glucose levels are high and beyond $120~mg/dl$.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true and (R) is not correct explanation of (A).
• C. (A) is true, but (R) is false.
• D. (A) is false, but (R) is true.

Hint:

When the kidneys spill glucose into the urine (glycosuria), it acts as an osmotic diuretic, pulling water along with it. This causes the classic diabetes symptoms of polyuria (frequent urination) and polydipsia (excessive thirst).

Answer 1

The Correct Option is C

Step 1: Evaluating the Assertion (A):
Diabetes mellitus is indeed a chronic metabolic disorder characterized by high blood sugar (hyperglycemia) resulting from defects in insulin production, insulin action, or both. Thus, the assertion is True.

Step 2: Evaluating the Reason (R):
Glycosuria is the excretion of glucose in the urine. The normal renal threshold for glucose is approximately $160\text{ to 180\text{ mg/dL}$}, not $120\text{ mg/dL}$. At $120\text{ mg/dL}$, the kidneys can easily reabsorb all filtered glucose. Therefore, the reason is False.