TABLE 4-6.
Recommended Urethral Catheter Sizes for Routine Use in Dogs and Cats
| Animal | Urethral catheter type | Size (French units*) |
|---|---|---|
| Cat | Flexible vinyl, red rubber, or Tom Cat catheter (polyethylene) | 3.5 |
| Male dog (≤25 lb) | Flexible vinyl, red rubber, or Polyethylene | 3.5 or 5 |
| Male dog (≥25 lb) | Flexible vinyl, red rubber, or Polyethylene | 8 |
| Male dog (>75 lb) | Flexible vinyl, red rubber, or Polyethylene | 10 or 12 |
| Female dog(≤10 lb)) | Flexible vinyl, red rubber, or Polyethylene | 5 |
| Female dog (10–50 lb) | Flexible vinyl, red rubber, or Polyethylene | 8 |
| Female dog(>50 lb) | Flexible vinyl, red rubber, or Polyethylene | 10,12, or 14 |
*
The diameter of urinary catheters is measured on the French (F) scale. One French unit equals roughly 0.33 mm.
From Crow S, Walshaw S: Manual of Clinical Procedures in the Dog, Cat and Rabbit, ed 2, Philadelphia, Lippincott-Raven, 1997.
© 2006 Lippincott-Raven