TSC 2.5 - Environmental Safety-

Multiple Choice

Yes / No:
You are at the scrub sink, preparing for an eye procedure in which laser surgery will be used. The surgeon’s assistant is next to you at the sink. You notice that he is wearing a metal necklace. Can he tuck it into his scrub shirt?

• Yes

• No

Multiple Choice

Yes / No:
You are in a hurry to pass through a surgical suite where Nd:YAG laser surgery is in progress. You do not use protective eyewear, even though goggles are hanging on the door outside. You enter the room and turn your head away from the patient as you proceed to the other door. Just to be safe, you close your eyes for a few moments until you reach the door. Are you safe?

• Yes

• No

Multiple Choice

Which laser classification indicates the highest level of danger?

• Level 1

• Level 2

• Level 3A

• Level 4

Multiple Choice

What is the main hazard associated with the use of lasers in surgery?

• Electric shock

• Chemical burns

• Eye damage

• Radiation sickness

Multiple Choice

In an X-ray image, how does an extremely dense substance like bone appear?

• Transparent

• Black

• White

• Colored

Multiple Choice

What is a radiopaque substance?

• A substance that emits radiation

• A substance that x-rays cannot penetrate

• A substance that absorbs light

• A substance that fluoresces under UV light

Multiple Choice

True or False:
A contrast medium is used in radiography to outline hollow organs or vessels before x-ray films are taken.

• True

• False

Multiple Choice

What precaution should be taken when using X-ray equipment in the operating room?

• Increase the room temperature

• Use lead aprons for protection

• Reduce the oxygen flow

• Use non-reflective surfaces

Multiple Choice

What three components are required to start a fire in the operating room (OR)?

• Oxygen, fuel, and water

• Oxygen, fuel, and a source of ignition

• Oxygen, electricity, and water

• Fuel, water, and a source of ignition

Multiple Choice

In the event of an OR fire, what is the first action to take?

• Call for help

• Remove any burning objects

• Shut off the flow of all gases to the patient’s airway

• Use a fire extinguisher

Multiple Choice

What should be done immediately if a fire occurs on the patient during surgery?

• Continue the surgery and address the fire later

• Use sterile saline or water to extinguish the fire

• Increase the oxygen flow

• Call the fire department

Multiple Choice

What information is provided by a Material Safety Data Sheet (MSDS)?

• Health and environmental hazards of a chemical

• Expiration date of a chemical

• Cost and manufacturer’s details of a chemical

Multiple Choice

Which of the following is NOT typically found on an MSDS?

• Protective measures for handling chemicals

• Instructions on how to store chemicals

• Step-by-step usage instructions for chemical applications

• Hazards associated with the chemical

Multiple Choice

For a knee replacement surgery, the scrub is preparing bone cement to secure the prosthetic implant. As the cement is being mixed, a small amount of the liquid component spills. What should the scrub do in response to the spill of methyl methacrylate bone cement?

• Wipe it up immediately with a sterile cloth and continue the procedure without notifying anyone.

• Refer to the MSDS for the appropriate steps to handle the chemical spill

• Ignore the spill and assume it will evaporate quickly due to its volatile nature.

• Pour additional sterile liquid over the spill to dilute it and prevent any adverse effects.