CIS - Certified Instrument Specialist Instrument Inspection and Testing Questions and Answers — Questions and Answers
Question 1: A Certified Instrument Specialist is testing the sharpness of a pair of standard scissors that are 5 inches long. According to industry best practices, which testing material should be used?
- Yellow test material
- Red test material (Correct answer)
- An index card
- A plastic dowel rod
Correct answer: Red test material
Red sharpness testing material is specifically designated for testing scissors that are 4.5 inches or larger. Yellow material is used for scissors 4 inches or smaller. Index cards are used for rongeurs, and dowel rods are used for osteotomes.
Question 2: During the inspection of a laparoscopic instrument with insulation, a technician notes no visible cracks or peels. However, to ensure patient safety from unintended burns, what is the essential next step?
- Visually inspect the instrument under magnification
- Perform a functional test of the instrument's jaws
- Use an insulation integrity tester (Correct answer)
- Check for alignment of the distal tip
Correct answer: Use an insulation integrity tester
Visual inspection alone is insufficient to detect microscopic pinholes or tears in insulation that can cause inadvertent burns to the patient during electrosurgery. An insulation integrity tester is specifically designed to detect these unseen defects by passing a low-voltage electrical current through the instrument.
Question 3: Which of the following is the PRIMARY reason for meticulously inspecting surgical instruments for cleanliness and damage after decontamination and prior to sterilization?
- To ensure the instrument's polish and finish are maintained
- To prevent damage to the automated sterilizer
- To extend the overall lifespan of the instrument
- To ensure the sterilization process will be effective and to prevent patient harm (Correct answer)
Correct answer: To ensure the sterilization process will be effective and to prevent patient harm
The primary purpose of inspection is to ensure patient safety. If an instrument is not perfectly clean (free of bioburden), the sterilization process may not be effective. Additionally, damaged instruments with scratches, pits, or cracks can harbor microorganisms and pose a risk of breaking during a procedure, potentially harming the patient.
Question 4: A sterile processing technician is inspecting a needle holder. What is the correct method to test its functionality?
- Close the jaws and hold them up to a light to check for gaps
- Tap the ratchets gently on a table to ensure they hold
- Clamp a needle in the jaw and ensure it cannot be easily turned (Correct answer)
- Cut through a piece of gauze to test the jaw's sharpness
Correct answer: Clamp a needle in the jaw and ensure it cannot be easily turned
The specific function of a needle holder is to grasp a needle firmly. Therefore, the correct test is to clamp a needle and ensure the instrument can hold it securely without it turning or moving. Holding jaws to a light is for scissors, and tapping ratchets is a general test for any locking mechanism.
Question 5: When inspecting a rongeur, what is the appropriate material to use for a functional sharpness test?
- A wooden dowel
- Red test material
- An index card (Correct answer)
- Surgical gauze
Correct answer: An index card
A rongeur's function is to bite and remove pieces of bone. An index card provides a suitable material to simulate this action, and a clean, sharp bite out of the card indicates the rongeur is functioning correctly. Dowels are for osteotomes, red test material for large scissors, and gauze is not firm enough to test a rongeur.
Question 6: A technician is assembling a multi-part instrument and notices a small amount of play in a screw. What is the most appropriate action to take?
- Disassemble the instrument and send it for repair
- Lubricate the screw and continue with assembly
- Use a tool to tighten the screw if permitted by the IFU, then re-inspect (Correct answer)
- Ignore the issue as it is minor and will not affect function
Correct answer: Use a tool to tighten the screw if permitted by the IFU, then re-inspect
Loose screws can compromise the function of an instrument and may even lead to parts falling into the surgical site. The first appropriate step is to check if tightening the screw is permissible per the manufacturer's Instructions for Use (IFU). If it is, the screw should be tightened and the instrument re-inspected for proper function. If tightening is not possible or does not resolve the issue, it should then be sent for repair.
CIS - Certified Instrument Specialist Instrument Inspection and Testing Questions and Answers
A Certified Instrument Specialist is testing the sharpness of a pair of standard scissors that are 5 inches long.
According to industry best practices, which testing material should be used?