Question

In a healthy individual, the Glomerular Filtration Rate (GFR) is ________.

• A. 125 ml/minute
• B. 125 ml/hour
• C. 126 ml/minute
• D. 125 ml/second

Hint:

Always double-check the units! Examinations often trick students by changing "minute" to "hour" or "second", as seen in the distractors here.

Answer 1

The Correct Option is A

Step 1: Understanding the Problem:
Glomerular Filtration Rate (GFR) is defined as the volume of filtrate formed by both kidneys per minute. It is an important indicator of renal health.
Step 2: Approach and Formula:
Recall the standard physiological values for Glomerular Filtration Rate (GFR) in a healthy human adult as mentioned in standard physiological texts.
Step 3: Detailed Explanation:
In a healthy adult human, the kidneys filter approximately 1100-1200 ml of blood per minute.
From this blood, the amount of glomerular filtrate formed per minute is about 125 ml.
This equals a total of roughly 180 liters of filtrate per day (\( 125 \text{ ml} \times 60 \text{ mins} \times 24 \text{ hours} \)).
Looking at the given options, 125 ml/minute is the correct physiological rate.
Step 4: Final Answer:
The GFR is 125 ml/minute.