What does "4-French catheter" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
A 4-French catheter is a thin tube used in medical procedures. The term "4-French" refers to the size of the catheter, with one French unit equal to one-third of a millimeter. Therefore, a 4-French catheter is approximately 1.3 millimeters in diameter. This type of catheter is often used in delicate procedures due to its small size.
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