RMGA Cheat Sheet 2026

The 30 highest-yield RMGA facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which component differentiates a DISS (Diameter Index Safety System) connection from a standard threaded fitting in medical gas systems? → DISS uses a unique thread pitch and body diameter combination specific to each gas
2. When should the contents label and pressure of a medical gas cylinder be verified? → Before each use and upon receipt from the supplier
3. What component alarms when gas pressure drops? → Master alarm panel
4. Which type of assessment provides a snapshot of current status at a single point in time? → Baseline assessment
5. When storing compressed gas cylinders, full and empty cylinders must be separated and stored how? → In separate areas with clear labeling indicating full or empty status
6. Which NFPA 99 requirement applies to the segregation of full and empty medical gas cylinders in storage? → Full and empty cylinders must be stored in separate, clearly marked areas
7. Which organization publishes the Compressed Gas Association (CGA) standards most relevant to medical gas cylinder handling and safety? → Compressed Gas Association (CGA)
8. Which NFPA 99 category defines life support and critical care medical gas systems requiring the highest level of reliability? → Category 1
9. A hospital discovers that a medical air compressor has been cross-connected with a nitrogen line. What is the immediate quality assurance response? → Take the affected system out of service and notify clinical staff immediately
10. NFPA 99 categorizes medical gas systems by risk category primarily based on: → The potential for patient harm if the system fails
11. When a healthcare facility receives a medical gas cylinder with a damaged valve, the correct action is to: → Return the cylinder to the supplier and document the non-conformance
12. What is a critical component of emergency preparedness? → Emergency shut-off plan
13. When documenting assessment findings in RMGA practice, which approach is MOST appropriate? → Record objective findings, measurements, and professional observations factually
14. According to NFPA 99, what is the required minimum distance between a medical gas shutoff valve and a sprinkler head? → 18 inches
15. An RMGA is auditing documentation for a zone valve box. Which record is MOST important to verify is current? → Latest inspection date and results for the zone valve
16. During a power outage, the medical gas alarm system loses power. According to NFPA 99, what provision must exist for alarm continuity? → Medical gas alarms must be connected to emergency power per NFPA 99 requirements
17. What is the value of continuing education in documentation for RMGA professionals? → It keeps professionals current with evolving standards and practices
18. An RMGA is verifying outlet flow rates and finds that a medical air outlet delivers only 60% of its rated flow. Which of the following is the MOST likely cause? → The outlet DISS fitting has a partial internal obstruction or damaged check valve
19. What is the maximum allowable pressure drop across a zone valve when fully open in a medical gas distribution system? → 2 psig
20. When should a healthcare facility update its medical gas management plan? → Whenever significant system changes occur or at a minimum annually
21. In RMGA practice, what is the best approach to quality improvement in documentation? → Use data-driven methods with measurable outcomes
22. Under NFPA 99, a Level 1 medical gas system must have a minimum of how many days of supply in reserve for bulk liquid systems? → 3 days
23. What is the value of continuing education in emergency procedures for RMGA professionals? → It keeps professionals current with evolving standards and practices
24. What is the minimum distance NFPA 99 requires between a bulk liquid oxygen storage system and the nearest combustible construction? → 25 feet
25. Which of the following conditions requires a pipeline installer to stop work and notify the RMGA immediately? → Discovery of an unlabeled pipeline of unknown content
26. According to NFPA 99, the area alarm panel for a medical gas system must be located where? → At the nursing station serving the area
27. What is the MOST important factor to consider when selecting assessment tools for RMGA certification work? → Validity, reliability, and appropriateness for the specific context
28. Which standard specifies the dew point requirement for medical air used in patient care? → NFPA 99
29. Under NFPA 99, the maximum allowable storage quantity of oxidizing medical gases (e.g., oxygen) inside a healthcare occupancy without additional safeguards is: → 3,000 cubic feet
30. Which professional attribute is most valued in code requirements within the RMGA field? → Accountability and commitment to standards