Catheterization and Drainage Procedures

Overview of Catheterization and Drainage Procedures

This chapter covers various catheterization techniques, types of catheters, and their applications within surgical and clinical settings. Each component of catheterization is discussed comprehensively, including definitions, indications, and specific types of catheters used in medical practice.

Catheterization Techniques

• Epidural and Spinal Procedures:

  • Involves insertion of a catheter (typically a red rubber Robinson catheter) to facilitate drainage.

  • Urine is collected and the catheter is eventually removed post-collection.

  • Purpose: To monitor and measure urine output during procedures.

• Indwelling Catheters:

  • Commonly utilized for patients unable to void naturally (e.g., due to epidural/spinal anesthesia).

  • Foley Catheter:

  • A self-retaining catheter that remains in place for extended periods.

  • Indications: Used during surgeries, major medical procedures, and to monitor urine output.

  • A continuous drainage system ensuring bladder decompression.

• Drainage Techniques:

  • Utilized to remove fluids (blood, urine, secretions) to prevent accumulation in the body.

  • Examples:

  • Chest tubes (indwelling for monitoring pleural space).

  • Other surgical drains used in various procedures.

Measurement and Input-Output Balance

• Monitoring Urine Output:

  • Essential for assessing fluid balance.

  • The principle: “What goes in must come out.”

  • Overhydration can pose risks (e.g., fluid overload), hence the need for careful management.

• Fluid Management:

  • Anesthesia team is responsible for rehydrating patients, particularly those NPO (Nil Per Os - nothing by mouth).

  • Fluids administered need to be tracked against urine output to ensure balance and prevent complications.

Types of Catheters

• Foley Catheter:

  • Composed of various components:

  • Tip: Side-eye (single opening) or whistle tip (dual openings) for enhanced drainage.

  • Shaft: Main body of the catheter, typically 20-24 inches long.

  • Lumen: Internal channel through which urine drains.

  • Drain End: Connects to collection systems (e.g., urometer).

• Red Rubber Robinson Catheter:

  • A straight catheter for temporary use, primarily for urinary specimen collection or bladder decompression.

• Three-way Foley Catheter:

  • Includes an additional port for irrigation, particularly useful during procedures like TURP (TransUrethral Resection of the Prostate).

Catheter Insertion Techniques

• Indications and Steps:

  • Catheters are inserted based on the patient’s condition (e.g., surgery requiring urinary management).

  • The body’s natural defense mechanisms may expel non-natural materials; thus, secure methods (e.g., balloons) are critical.

• Drain Insertion:

  • Surgical drains (like Jackson-Pratt, Hemovac) are frequently utilized in post-operative care.

  • Negative pressure systems—Hemovac and Jackson-Pratt—are examples used to manage surgical sites.

Safety and Sterility

• Catheter Types and Allergy Considerations:

  • Being mindful of latex allergies is crucial; use alternatives (like silicone) for patients with such allergies.

• Proper Use and Handling of Catheters:

  • Catheters and drainage systems must be kept sterile to prevent infections.

  • Awareness of preventing contamination (keeping below table height) is critical.

Conclusion

The comprehensive understanding of various catheter types, their purposes, and correct handling reinforce the importance of patient safety during procedures. Students will gain proficiency in these techniques as they apply in clinical settings in their future practices.