Instruments & Equipment Management Flashcards
7 cards from real CST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Instruments & Equipment Management flashcards as text
What is the function of a Penrose drain in surgery?
Answer: To passively drain fluid from a wound or cavity
A Penrose drain is a soft latex tube placed in a wound to allow passive drainage of fluid by capillary action and gravity.
Which saw is most commonly used for sternotomy during cardiac surgery?
Answer: Oscillating saw
An oscillating (reciprocating) power sternal saw is used to divide the sternum along the midline for cardiac access.
Which instrument is used to approximate wound edges for skin closure without sutures?
Answer: Skin stapler
A skin stapler applies stainless steel staples to rapidly approximate skin edges as an alternative to suture closure.
A Jackson-Pratt (JP) drain differs from a Penrose drain in that it:
Answer: Uses active closed-suction drainage
A Jackson-Pratt drain uses a collapsible bulb to create negative pressure, providing active closed-suction drainage of wound fluid.
When using a harmonic scalpel, energy is transmitted to tissue through which mechanism?
Answer: Ultrasonic vibration
The harmonic scalpel uses ultrasonic vibration (55,500 Hz) to simultaneously cut and coagulate tissue with minimal thermal spread.
Which instrument is used to remove bone wax from bone surfaces during orthopedic or neurosurgical procedures?
Answer: Periosteal elevator
A periosteal elevator strips and lifts periosteum from bone; it is also used to apply and remove bone wax during surgery.
Which of the following best describes a 'ratchet' mechanism on a clamp?
Answer: A locking mechanism that holds the jaws in a closed position
The ratchet (box lock) mechanism on a clamp locks the jaws at a specific tension, maintaining constant pressure on tissue.