O Levels Biology (5090)•5090/12/O/N/22

Explanation
Symptoms and glucose test indicate diabetes
Steps:
- Identify classic symptoms: unexplained weight loss, polydipsia (thirst), and polyuria (frequent urination) suggest metabolic disorder.
- Note diagnostic test: high glucose in urine (glycosuria) points to impaired glucose regulation.
- Link symptoms to hyperglycemia: excess blood sugar spills into urine, causing osmotic diuresis and dehydration.
- Confirm match: these align directly with type 1 or type 2 diabetes diagnosis.
Why B is correct:
- Diabetes mellitus is defined by chronic hyperglycemia, leading to glycosuria, polyuria, polydipsia, and weight loss from caloric loss in urine.
Why the others are wrong:
- A: Cardiovascular disease involves heart/blood vessel issues like chest pain or hypertension, not glucose-related symptoms.
- C: Anemia results from low red blood cells, causing fatigue and pallor, without thirst or urinary glucose.
- D: Obesity features weight gain from fat accumulation, contradicting the unexplained weight loss.
Final answer: B
Topic: Blood glucose control
Practice more O Levels Biology (5090) questions on mMCQ.me