Catheters, Tubes & Elimination

Why is sterile technique so important for Foley catheter insertion?

A urinary catheter gives bacteria a direct path into the bladder, and catheter-associated urinary tract infection is one of the most common healthcare infections. Sterile equipment, a sterile field and careful cleaning before insertion — plus a closed drainage system and daily review of whether the catheter is still needed — are the main defences.

How are Foley catheter sizes measured?

Catheters are sized on the French (Fr or Ch) scale, which describes the tube's outer circumference — roughly, the French size divided by three gives the diameter in millimetres. The smallest size that will drain effectively is generally chosen, and balloon volumes are printed on the catheter packaging.

When is an enema given?

An enema introduces fluid into the rectum and lower bowel, most often to relieve constipation or to clear the bowel before a procedure or examination. It is given when it is prescribed or included in the patient's care plan, after checking for reasons it should not be used, and its effect is documented afterwards.