Catheterization

Definition

Catheterization is the insertion of a flexible tube (catheter) into a body cavity, duct, or vessel to drain fluid, administer medication, or monitor pressure. Urinary catheterization is the most common type in nursing.

Types of Urinary Catheters

• Straight (intermittent): Inserted and removed after drainage.
• Indwelling (Foley): Balloon-retained; connected to drainage bag.
• Suprapubic: Inserted through abdominal wall.
• Condom (external): Non-invasive for males.

CAUTI Prevention

CAUTI (Catheter-Associated Urinary Tract Infection) is a major healthcare-acquired infection. Prevention: insert only when indicated, use aseptic technique, maintain closed drainage system, keep bag below bladder level, perform meatal care with soap/water, remove as soon as possible.

Insertion Technique

Females: clean front-to-back; insert until urine flows, then advance 1 to 2 inches, inflate balloon. Males: lift penis perpendicular to body to straighten urethra; insert 7 to 9 inches to hub, then inflate balloon.

NCLEX Relevance

CAUTI prevention is a core Joint Commission and quality measure topic.