CIS - Certified Instrument Specialist Surgical Instrument Identification Questions and Answers — Questions and Answers
Question 1: A surgeon requests a clamp to atraumatically grasp the intestine. Which of the following instruments would be the most appropriate choice?
- Allis clamp
- Babcock clamp (Correct answer)
- Kocher clamp
- Foerster sponge forceps
Correct answer: Babcock clamp
Babcock clamps are designed with fenestrated, smooth, and rounded tips, making them ideal for grasping delicate tissues like the intestines or fallopian tubes without causing trauma. Allis clamps have serrated teeth and are used for grasping tougher tissue that may be removed. Kocher clamps have strong teeth and are for grasping heavy, tough tissues like fascia. Foerster sponge forceps are used for holding surgical sponges.
Question 2: Which of the following scissors is specifically designed for cutting heavy tissues such as fascia and muscle?
- Metzenbaum scissors
- Iris scissors
- Tenotomy scissors
- Mayo scissors (Correct answer)
Correct answer: Mayo scissors
Mayo scissors are heavier and more robust than other dissecting scissors, making them suitable for cutting tough tissues like fascia, muscle, and sutures. Metzenbaum scissors are longer and more delicate, used for dissecting soft tissues. Iris and Tenotomy scissors are very fine and used for delicate procedures, such as ophthalmic surgery or precise tissue dissection.
Question 3: During a procedure, a self-retaining retractor is needed to hold a small, superficial incision open. Which of the following would be the most suitable choice?
- Balfour retractor
- Deaver retractor
- Weitlaner retractor (Correct answer)
- Army-Navy retractor
Correct answer: Weitlaner retractor
A Weitlaner is a self-retaining retractor with sharp or blunt prongs, commonly used in basic plastic surgery, large bone and joint procedures, and to hold open small to medium-sized incisions. A Balfour is a large self-retaining retractor used for deep abdominal procedures. A Deaver and an Army-Navy are handheld retractors, not self-retaining.
Question 4: What is the primary distinguishing feature between a Kelly hemostat and a Crile hemostat?
- The length of the instrument
- The curvature of the jaws
- The extent of the serrations on the jaws (Correct answer)
- The type of locking mechanism
Correct answer: The extent of the serrations on the jaws
The key difference between a Kelly and a Crile hemostat is the serrations on their jaws. Crile hemostats have serrations that run the entire length of the jaw. Kelly hemostats have serrations that only extend partially, typically halfway, down the jaw. Both come in similar sizes and can be straight or curved.
Question 5: A surgical technician is assembling a tray for a delicate vascular procedure. Which type of tissue forceps would be most appropriate for handling fine blood vessels?
- Russian forceps
- Adson forceps with teeth
- DeBakey forceps (Correct answer)
- Bonney forceps
Correct answer: DeBakey forceps
DeBakey forceps have multiple, fine, atraumatic serrations and are specifically designed for delicate and cardiovascular procedures to handle fine tissues like blood vessels with minimal damage. Adson forceps with teeth are for grasping skin. Russian forceps have a rounded, toothed tip for grasping dense tissue. Bonney forceps are heavy forceps used for grasping fascia.
Question 6: Which instrument is characterized by a flattened, blunt tip on one blade and is specifically designed for cutting bandages without injuring the patient's skin?
- Suture scissors
- Mayo scissors
- Metzenbaum scissors
- Lister bandage scissors (Correct answer)
Correct answer: Lister bandage scissors
Lister bandage scissors have a distinctive design with an angled tip and a flattened, blunt nodule on the lower blade. This feature allows the scissors to slide between the bandage and the patient's skin safely, preventing accidental cuts. Suture, Mayo, and Metzenbaum scissors are not designed with this specific safety feature for cutting external dressings.
CIS - Certified Instrument Specialist Surgical Instrument Identification Questions and Answers
A surgeon requests a clamp to atraumatically grasp the intestine.
Which of the following instruments would be the most appropriate choice?