Tobias Ch 12 - Instruments

Question 1

What are the basic parts of an articulating instrument?

Answer 1

Tips, jaws, box lock and pin, shank, ratchet, and ring handles.

Question 2

How are instruments designed to grasp tissue categorized?

Answer 2

Traumatic or atraumatic with various configurations.

Question 3

What type of jaws are usually more traumatic?

Answer 3

Jaws with prominent serrations or coarse teeth.

Question 4

What is a key determinant of surgical effectiveness and efficiency?

Answer 4

Proper positioning of digits within the ring handles.

Question 5

What is the primary function of a scalpel?

Answer 5

Produces little damage to surrounding tissues.

Question 6

What materials are scalpel blades typically made from?

Answer 6

Carbon steel or stainless steel.

Question 7

What scalpel handle accepts blades #10, #11, #12, and #15?

Answer 7

3 scalpel handle.

Question 8

What scalpel handle is used for blades #20 to #25?

Answer 8

4 handle.

Question 9

What specialized scalpel handle is used in ophthalmic surgery?

Answer 9

Rounded Beaver scalpel handle.

Question 10

Which type of scissors has a greater mechanical advantage?

Answer 10

Scissors with straight tips.

Question 11

What is the primary use of Metzenbaum scissors?

Answer 11

Used on relatively delicate tissue.

Question 12

What type of scissors are Mayo scissors used for?

Answer 12

Used on denser tissue.

Question 13

What type of scissors is often reserved for use on inanimate objects?

Answer 13

Utility or operating scissors.

Question 14

What type of forceps are used in neurosurgical and orthopedic procedures?

Answer 14

Rongeurs.

Question 15

What are the characteristics of double-action rongeurs?

Answer 15

Greater mechanical advantage and require less force.

Question 16

What are examples of double-action rongeurs?

Answer 16

• Stille-Luer
• Ruskin

Question 17

What is the purpose of periosteal elevators?

Answer 17

Used to elevate the periosteum from bone.

Question 18

What is a bone chisel used for?

Answer 18

Beveled on one side for cutting bone.

Question 19

What type of instrument is a Gigli saw?

Answer 19

A bone-cutting instrument.

Question 20

What is the function of curettes?

Answer 20

Used to remove bone or soft tissue.

Question 21

What is the importance of the angle of the ratchet mechanism in needle holders?

Answer 21

Should be 39 degrees to enhance security.

Question 22

What are the two types of tissue forceps?

Answer 22

• Crushing
• Non-Crushing

Question 23

What is the primary use of towel clamps?

Answer 23

To secure drapes or towels.

Question 24

What type of scissors are Lister scissors?

Answer 24

Bandage scissors.

Question 25

What are the main considerations for surgical instrument care?

Answer 25

* Preventative maintenance * Appropriate use * Careful handling * Proper decontamination * Inspection

Question 26

What is the most commonly used method of sterilization?

Answer 26

Autoclaving.

Question 27

What type of corrosion is characterized by pinprick-like holes?

Answer 27

Pitting corrosion.

Question 28

What causes rust deposition on surgical instruments?

Answer 28

Rust particles in water or steam or non-corrosion-resistant steel.

Question 29

What should be used during the steam sterilization process to prevent corrosion?

Answer 29

Neutral pH cleaning agents and demineralized water.

Question 30

What type of cleaning enhances the cleaning process of surgical instruments?

Answer 30

Ultrasonic cleaning.

Question 31

What are microsurgical instruments used for?

Answer 31

For precision tasks in delicate surgeries.

Question 32

What types of scissors are recommended for microsurgery?

Answer 32

* Pointed tips for cutting tissue * Blunted tips for dissection

Question 33

What are vessel clamps used for in microsurgery?

Answer 33

To provide temporary, tension-free occlusion.