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Filtration fraction is the ratio of...

Filtration fraction is the ratio of

A

Glomerular filtration rate (GFR) and renal plasma flow (RPF)

B

Transport maximum `(T_(m))` and clearance factor `(C_(f))`

C

Hb and `HbO_(2)`

D

`O_(2)` and `CO_(2)`

Text Solution

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The correct Answer is:
To solve the question about the filtration fraction, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Concept of Filtration Fraction**: - Filtration fraction is a term used in renal physiology. It represents the portion of blood plasma that is filtered through the kidneys. 2. **Identify the Components of Filtration Fraction**: - The filtration fraction is defined as the ratio of two specific values: - **Glomerular Filtration Rate (GFR)**: This is the rate at which blood is filtered through the glomeruli of the kidneys. - **Renal Plasma Flow (RPF)**: This refers to the volume of plasma that passes through the kidneys per unit time. 3. **Formulate the Ratio**: - The formula for filtration fraction can be expressed as: \[ \text{Filtration Fraction} = \frac{\text{Glomerular Filtration Rate (GFR)}}{\text{Renal Plasma Flow (RPF)}} \] 4. **Evaluate the Options**: - Given the options: 1. Glomerular filtration rate and renal plasma flow 2. Transport maximum and clearance factor 3. Hemoglobin and HbO2 4. Oxygen and carbon dioxide - The correct option must relate to the definition of filtration fraction. 5. **Select the Correct Answer**: - Based on the definition and the components involved, the correct answer is: - **Option 1: Glomerular filtration rate and renal plasma flow**. ### Final Answer: The filtration fraction is the ratio of glomerular filtration rate to renal plasma flow. ---
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