What is the purpose of autoclave tape indicators?

• A. To measure time
• B. To label contents
• C. To visually show that packaging was exposed to proper heat and pressure during sterilization
• D. To indicate packaging integrity

Answer: (C)

Autoclave tape indicators provide a visual cue that a package has been through the sterilization cycle. The tape contains a heat- and moisture-sensitive element that changes color when the autoclave reaches the required heat and pressure, giving a quick at-a-glance confirmation that processing occurred. This helps staff identify items that have been processed and distinguish them from those not yet sterilized. It isn’t a timer, so it won’t tell you how long the cycle ran, and it doesn’t label contents or guarantee sterility on its own. Packaging integrity and appropriate sterility verification (like biological indicators) are still essential to confirm actual sterility.