Medical Science · Clinical Equipment
The French scale (Fr) sizing used for catheters directly measures which dimension of the tube?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Radius of the catheter
- 2Internal diameter of the catheter
- 3External diameter of the catheter✓
- 4Total length of the catheter
Correct answer
External diameter of the catheter
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