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When the word “catheter” comes up, visions of medical procedures and sterile environments might dance in your head. But beyond the clinical facade, catheters serve diverse purposes and vary greatly in function and design.

This blog post aims to be your friendly guide, demystifying the different types of catheters commonly used in various medical settings.

By Location:

  • Urinary Catheters: These drain urine from the bladder. We have:
    • Indwelling Catheters: Permanently inserted tubes (Foley catheter), often with a balloon for secure placement.
    • Intermittent Catheters: Self-inserted tubes used periodically for bladder emptying.
    • External Catheters: Adhesively applied to collect urine externally, mainly for men.
  • Vascular Catheters: Placed in blood vessels for delivering fluids, medications, or drawing blood.
    • Central Venous Catheters: Inserted into large veins near the heart for long-term access.
    • Peripheral Venous Catheters: Placed in smaller veins, typically in the arm or hand.
    • Arterial Catheters: Monitor blood pressure or administer medications directly into arteries.
  • Nasogastric (NG) Tubes: Pass through the nose to the stomach for feeding or draining fluids.
  • Gastric Tubes: Surgically placed directly into the stomach for long-term feeding or drainage.

By Material:

  • Silicone: Flexible, durable, and biocompatible, often used for long-term catheters.
  • Latex: Less expensive but can trigger allergic reactions, used for short-term applications.
  • Polyurethane: Strong and biocompatible, suitable for various catheter types.

By Function:

  • Drainage Catheters: Remove fluids from body cavities like the bladder, peritoneum, or pleura.
  • Feeding Tubes: Deliver nutrition directly into the stomach or intestines.
  • Dialysis Catheters: Connect patients to dialysis machines for blood purification.
  • Spinal Catheters: Administer medications or anesthesia directly into the spinal canal.

Remember: This is not an exhaustive list, and individual needs determine the specific type of catheter used. Always consult healthcare professionals for accurate information and guidance.

Do you have any questions about a specific type of catheter? Leave a comment below, and let’s discuss!