CAST Protocol for Cast Care

CAST Acronym in Cast Care

C - Clean and Dry

  • Definition: The cast must remain clean and dry at all times, especially when using a plaster cast.

  • Key Terms:

    • Plastic Bag: Recommended to cover the cast with a plastic bag during bathing. This is critical to avoid wetting the cast.

    • Tip: This is a huge NCLEX (National Council Licensure Examination) tip.

  • Important Note: Plaster casts take longer to dry compared to synthetic materials and can disintegrate if exposed to moisture.

A - Above the Heart

  • Purpose: Keeping the casted extremity elevated above the heart for the first 48 hours post-application.

  • Benefits:

    • Decreased Swelling: Elevation helps minimize swelling in the casted area.

    • Prevention of Compartment Syndrome: Reduces risk of pressure build-up in the muscle compartment.

  • Key Terms:

    • Elevate: The extremity should be kept elevated as a critical management step.

    • Tip: Another significant NCLEX tip to highlight.

S - Scratching an Itch

  • Recommended Action: If the area under the cast becomes itchy, the only safe method to relieve an itch is to use a hair dryer set to the cool setting.

  • Caution: Never insert any object under the cast to scratch the itch as this can cause damage to the skin and lead to complications.

  • Key Terms:

    • Hair Dryer: Always utilize the cool setting for itch relief or ice pack over the itchy area

    • Tip: This is a crucial NCLEX tip; remember to document this method for the exam.

T - Take It Easy

  • Advice: Patients should refrain from putting weight on a newly casted limb, particularly for plaster casts, especially during the first few hours.

  • Possible Issues:

    • Misshapen Cast: Putting weight on a fresh plaster cast can alter its shape.

    • Avoiding Pressure: No finger indentations or pressure should be applied to the cast immediately after application.

    • No Arch Surfaces: It’s essential to prevent any surface area from being pressed against or perched upon, which can distort the cast and impair circulation.

Conclusion: Importance of the CAST Protocol

  • The CAST protocol is essential for proper care and to avoid complications in patients with casts. Each element of the acronym provides critical guidance that can prevent discomfort and ensure effective healing.