A Foley catheter size 16 (or 16Fr/FG) refers to its diameter, meaning it’s about 5.3mm wide, a common size often used for adult females or sometimes males, made from silicone or latex, and features a balloon to keep it in place for bladder drainage, helping manage incontinence or surgical needs.
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Size:
16 French (Fr or FG) indicates the catheter’s diameter; 16Fr is roughly 5.3mm in outer diameter, a standard mid-range size.
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Material:
Available in 100% medical-grade silicone (less irritation, better for long-term) or latex.
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Design:
Typically a two-way catheter with a drainage channel and a balloon channel; the balloon inflates with sterile water to hold it in the bladder.
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Purpose:
Used for continuous bladder drainage when a person can’t urinate independently, post-surgery, or for precise urine monitoring.
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Features:
Often has smooth, optimal eyelets for easy insertion and drainage, and a radiopaque strip for visibility on scans.
- Size 16 is commonly used for adult females, while sizes 12-16 are generally for females, and larger sizes (like 20-22) for adult males, according to this YouTube video.
- It’s inserted into the bladder via the urethra, the balloon is inflated to secure it, and urine drains through the tube into a collection bag.
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