CIS - Certified Instrument Specialist Specialty Instrumentation Sets Questions and Answers — Questions and Answers
Question 1: A technician is processing an ophthalmic set containing a diamond knife. What is the most critical handling instruction specific to this instrument during decontamination?
- It should be placed in an ultrasonic cleaner with other delicate instruments.
- It must be hand-washed separately using a non-abrasive sponge, avoiding any contact with the blade's edge. (Correct answer)
- It should be processed through an automated washer-disinfector on a gentle cycle.
- It can be cleaned along with other micro-instruments as long as it is in a protective tray.
Correct answer: It must be hand-washed separately using a non-abrasive sponge, avoiding any contact with the blade's edge.
Diamond knives are extremely delicate and expensive. The blade can be easily chipped, scratched, or broken. The manufacturer's instructions for use (IFU) typically mandate separate, careful manual cleaning with specific soft, non-linting materials, ensuring no pressure or contact is applied to the cutting edge. Ultrasonic cleaners and automated washers can cause irreversible damage.
Question 2: When assembling a set for a craniotomy, which of the following powered instruments is essential for creating burr holes and cutting the bone flap in the skull?
- Dermatome
- Sternal Saw
- Oscillating Saw
- High-speed pneumatic perforator/craniotome (Correct answer)
Correct answer: High-speed pneumatic perforator/craniotome
A high-speed pneumatic perforator, often part of a system like the Midas Rex, is specifically designed for the precision and power needed to cut through the dense bone of the skull. A dermatome is for skin grafts, a sternal saw is for the sternum, and an oscillating saw is more common in orthopedic procedures.
Question 3: A sterile processing technician receives a multi-tray orthopedic loaner set for a total hip arthroplasty. What is the mandatory first step that must be taken before initiating the decontamination process?
- Place all trays directly into the cart washer to begin cleaning.
- Perform a detailed inventory and inspection of all contents against the manufacturer's count sheet. (Correct answer)
- Wrap the set immediately if it appears to have been delivered sterile.
- Contact the operating room to confirm the case is still scheduled.
Correct answer: Perform a detailed inventory and inspection of all contents against the manufacturer's count sheet.
For any loaner instrumentation, the first and most critical step upon receipt is to perform a meticulous inventory against the provided count sheet. This ensures all components are present and allows for an initial inspection for damage or wear before the facility takes responsibility for the set. Decontamination follows this verification step.
Question 4: Which of the following self-retaining retractors is uniquely designed for spreading the ribs during cardiothoracic procedures?
- Finochietto Retractor (Correct answer)
- Balfour Retractor
- Weitlaner Retractor
- Gelpi Retractor
Correct answer: Finochietto Retractor
The Finochietto retractor is a large, robust self-retaining retractor specifically designed to retract the ribs, providing wide access to the thoracic cavity for heart and lung surgery. The Balfour is for abdominal surgery, while the Weitlaner and Gelpi are much smaller and used for superficial incisions.
Question 5: A technician is reprocessing EndoWrist® instruments from a da Vinci® robotic surgery system. Which of the following is a critical cleaning step unique to these complex instruments?
- Soaking the instrument tips in a saline solution.
- Scrubbing the external surfaces with a wire brush.
- Attaching the instrument to a specialized device to flush internal channels and lumens under pressure. (Correct answer)
- Bypassing manual cleaning and placing them directly into the ultrasonic cleaner.
Correct answer: Attaching the instrument to a specialized device to flush internal channels and lumens under pressure.
Robotic instruments like the EndoWrist® have complex internal lumens and channels that cannot be effectively cleaned by manual brushing or soaking alone. The manufacturer's IFU requires flushing these channels, often with an automated or pressurized system, to ensure bioburden is removed from internal working parts before sterilization.
Question 6: A myringotomy set, containing instruments like an ear speculum, a myringotomy knife, and an alligator forceps, is used for procedures on which anatomical structure?
- Nasal Septum
- Tonsils
- Tympanic Membrane (Eardrum) (Correct answer)
- Vocal Cords
Correct answer: Tympanic Membrane (Eardrum)
A myringotomy is a surgical procedure in which a tiny incision is created in the eardrum (tympanic membrane) to relieve pressure caused by excessive buildup of fluid, or to drain pus from the middle ear. The instruments in the set are specifically designed for this delicate ear procedure.
CIS - Certified Instrument Specialist Specialty Instrumentation Sets Questions and Answers
A technician is processing an ophthalmic set containing a diamond knife.
What is the most critical handling instruction specific to this instrument during decontamination?