Discussion
Match the column-I of colour of urine with column-II the relevant reason as per below :
| Column-I (Colour of Urine) | Column-II (Reason) |
|---|---|
| 1. Dark urine | a. Excessive sweating, dehydration |
| 2. Light colour urine | b. Vitamin B supplements |
| 3. Bright yellow | c. Blood in urine |
| 4. Red colour | d. Excessive fluid intake and renal condition |
Choose the most appropriate option from below :
Answer: B
The correct matching is 1-a, 2-d, 3-b, 4-c.
- Dark urine: concentrated urine from excessive sweating or dehydration.
- Light coloured urine: dilute urine from a high fluid intake, or from kidneys that cannot concentrate urine.
- Bright yellow: vitamin B supplements, whose riboflavin is excreted with a fluorescent yellow colour.
- Red: blood in the urine (haematuria).
The first code wrongly pairs pale urine with vitamin B and bright yellow with blood. The others fail on dark urine, which reflects concentration, not vitamins or blood.
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