What does the number on a scalpel blade indicate?

• A. It identifies the blade's color
• B. It indicates when the blade should be replaced
• C. It distinguishes the blade's size and shape
• D. It designates the manufacturer

Answer: (C)

The number on a scalpel blade identifies the blade’s size and shape—the geometry of the cutting edge. This helps you choose the right blade for the job, since different shapes and sizes provide different control, precision, and access. For example, a larger blade offers a broad cutting edge for skin incisions, a pointed blade is ideal for stab incisions, and a smaller blade allows fine work in tight spaces. The number isn’t about color, when to replace the blade, or who made it; those details come from packaging, usage, and branding rather than the blade’s cutting geometry.