HSPA Instrument Identification and Maintenance 2 — Questions and Answers
Question 1: What is the primary purpose of instrument marking or color-coding?
- To make instruments attractive
- To enable rapid identification and sorting by set, specialty, or facility (Correct answer)
- To indicate sterilization method required
- To show when instruments need sharpening
Correct 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.
Systems use colored bands, tape, laser etching, or dot matrix patterns. The marking method must withstand repeated sterilization without degrading or creating contamination-harboring crevices.
Question 2: What does pitting on stainless steel indicate?
- Normal wear from proper use
- Exposure to corrosive chemicals, saline, or blood left on the surface (Correct answer)
- Proper sterilization
- High-quality steel
Correct 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.
Pitting occurs when the chromium oxide layer is breached. Pitted instruments harbor bioburden in craters. Prevention includes prompt pre-treatment, appropriate detergents, and thorough rinsing.
Question 3: How should scissors be tested for proper function?
- By cutting through a metal clip
- By cutting through four layers of gauze at the tip for a clean cut (Correct answer)
- By opening and closing rapidly five times
- By checking that blades overlap when closed
Correct 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.
The tip is the weakest cutting point. Clean cuts at the tips indicate proper sharpness and blade alignment. Also check alignment, smooth action, and intact screws.
Question 4: What is the purpose of passivation in instrument maintenance?
- To add color
- To create or restore the protective chromium oxide layer on stainless steel (Correct answer)
- To sharpen cutting edges
- To make instruments magnetic
Correct 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.
This microscopically thin layer forms when chromium reacts with oxygen. The automated washer cycle can help maintain passivation. New instruments often have a blue tint from fresh passivation.
Question 5: What should be done with cracked insulation on a laparoscopic device?
- Continue using if the crack is small
- Apply electrical tape
- Remove from service immediately for repair due to electrical safety risk (Correct answer)
- Sterilize at higher temperature to seal it
Correct answer: Remove from service immediately for repair due to electrical safety risk
Cracked insulation creates risk of electrical burns during electrosurgery, requiring immediate removal.
Insulation prevents current from contacting tissue at unintended locations. Any defect allows current to arc to adjacent tissue, causing burns that may not be visible to the surgeon.
Question 6: How should needle holders be tested for proper jaw function?
- By clamping a suture needle and testing it holds at first ratchet position (Correct answer)
- By squeezing handles as hard as possible
- By examining jaws under a microscope
- By testing on paper
Correct 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.
If the needle rotates or falls out at first ratchet, the tungsten carbide inserts are worn. Also check jaw alignment, smooth ratchet engagement, and crosshatch pattern condition.
HSPA Instrument Identification and Maintenance 2
What is the primary purpose of instrument marking or color-coding?