RMGA Emergency Procedures 2 — Questions and Answers
Question 1: During a medical gas system failure affecting the ICU, what is the FIRST action the Medical Gas Administrator should take?
- Notify the biomedical engineering department
- Activate the facility emergency response plan and notify clinical staff (Correct answer)
- Shut down the affected zone valve immediately
- Contact the gas supplier for emergency delivery
Correct answer: Activate the facility emergency response plan and notify clinical staff
Activating the emergency response plan and notifying clinical staff ensures patient safety is addressed before any technical troubleshooting begins.
Question 2: A zone valve box for surgical suites is discovered to be leaking oxygen at the valve stem. Which emergency action is most appropriate?
- Apply pipe thread sealant around the stem
- Close the zone valve and notify affected areas, then arrange repairs (Correct answer)
- Increase system pressure to overcome the leak
- Wrap the valve stem with electrical tape as a temporary fix
Correct answer: Close the zone valve and notify affected areas, then arrange repairs
Closing the zone valve isolates the leak and notifying affected areas allows staff to prepare alternate oxygen sources while repairs are arranged.
Question 3: Which document should an RMGA reference first when responding to a bulk liquid oxygen system alarm indicating low liquid level?
- NFPA 99 Chapter 5
- The facility's medical gas emergency operations plan (Correct answer)
- OSHA 29 CFR 1910.104
- The oxygen supplier's MSDS sheet
Correct answer: The facility's medical gas emergency operations plan
The facility's emergency operations plan provides site-specific procedures for responding to supply alarms, including contact protocols and backup options.
Question 4: An alarm panel in the nursing station indicates 'Area Alarm — Oxygen High Pressure' in the post-surgical unit. What does this most likely indicate?
- A pressure regulator downstream of the zone valve has failed open (Correct answer)
- The bulk oxygen supply is being replenished
- A patient is using excessive oxygen flow
- The area alarm panel itself has malfunctioned
Correct answer: A pressure regulator downstream of the zone valve has failed open
A high-pressure area alarm typically indicates a failed-open pressure regulator, allowing system pressure to exceed the normal operating range in that zone.
Question 5: When a medical air compressor shuts down on a high-temperature safety cutout during an emergency, what is the correct immediate response?
- Bypass the temperature switch to restore air supply immediately
- Switch to backup medical air compressor and investigate the cause of overheating (Correct answer)
- Open all downstream zone valves to reduce backpressure
- Restart the compressor repeatedly until it stays running
Correct answer: Switch to backup medical air compressor and investigate the cause of overheating
Switching to the backup compressor maintains patient care while preventing further damage; overheating must be diagnosed before the primary unit is restarted.
Question 6: Under NFPA 99, who has authority to authorize the use of portable oxygen cylinders as a temporary substitute when the piped oxygen system fails?
- The biomedical technician on call
- The facility's designated authority having jurisdiction (AHJ)
- The nursing supervisor on duty
- The RMGA in coordination with clinical leadership per the emergency plan (Correct answer)
Correct answer: The RMGA in coordination with clinical leadership per the emergency plan
NFPA 99 requires that substitution of alternate supply methods be coordinated through established emergency procedures, typically involving the RMGA and clinical leadership.
Question 7: A technician reports that the medical vacuum system is pulling below the minimum required level of 12 inches Hg during a surge in patient demand. What emergency measure is most appropriate?
- Reduce the number of active vacuum outlets by closing zone valves to non-critical areas
- Add portable suction units to critical care areas and notify clinical staff of reduced vacuum (Correct answer)
- Increase the pump motor speed above rated capacity
- Vent the vacuum lines to atmosphere to equalize pressure
Correct answer: Add portable suction units to critical care areas and notify clinical staff of reduced vacuum
Deploying portable suction units to critical areas and notifying staff maintains patient care capability while the system deficit is addressed.
RMGA Emergency Procedures 2
During a medical gas system failure affecting the ICU, what is the FIRST action the Medical Gas Administrator should take?