Instrument Identification and Maintenance Flashcards

What is the primary purpose of instrument marking or color-coding?

Answer: To enable rapid identification and sorting by set, specialty, or facility

Color-coding allows quick identification of which instrument set or specialty an instrument belongs to.

What does pitting on stainless steel indicate?

Answer: Exposure to corrosive chemicals, saline, or blood left on the surface

Pitting is localized corrosion caused by prolonged exposure to chlorides, harsh chemicals, or acidic solutions.

How should scissors be tested for proper function?

Answer: By cutting through four layers of gauze at the tip for a clean cut

Scissors should cut cleanly through multiple gauze layers at the very tip, where cutting is weakest.

What is the purpose of passivation in instrument maintenance?

Answer: To create or restore the protective chromium oxide layer on stainless steel

Passivation forms or restores the thin chromium oxide layer that protects from corrosion.

What should be done with cracked insulation on a laparoscopic device?

Answer: Remove from service immediately for repair due to electrical safety risk

Cracked insulation creates risk of electrical burns during electrosurgery, requiring immediate removal.

How should needle holders be tested for proper jaw function?

Answer: By clamping a suture needle and testing it holds at first ratchet position

Needle holders should hold a suture needle securely at the first ratchet click.