MEDICAL GAS FINAL TEST PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Helium-Oxygen (Heliox). Answer: Helium-Oxygen mixture used to
reduce airway resistance.
◉ Nitric Oxide (NO). Answer: A medical gas used in therapy.
◉ Medical Air. Answer: A gas used in various medical applications.
◉ Hypoxemia. Answer: A condition indicated for oxygen therapy.
◉ CO poisoning. Answer: A condition indicated for oxygen therapy.
◉ Oxygen toxicity. Answer: A hazard associated with oxygen therapy.
◉ Retinopathy of prematurity. Answer: A hazard associated with oxygen
therapy.
◉ Status asthmaticus. Answer: A condition where Heliox is used to
improve gas flow.
,◉ Upper airway obstruction. Answer: A condition where Heliox is used
to improve gas flow.
◉ Cylinder pressure (H-cylinder). Answer: ~2200 psi full.
◉ Regulated working pressure. Answer: 50 psi.
◉ American Standard Safety System (****). Answer: Safety system for
large cylinders with unique thread patterns.
◉ Pin-Index Safety System (PISS). Answer: Safety system for small
cylinders with unique pin positions.
◉ Diameter-Index Safety System (DISS). Answer: Safety system for
low-pressure connections with gas-specific diameters.
◉ Oxygen Analyzer. Answer: Used to verify FiO₂ delivery.
◉ Calibration of Oxygen Analyzer. Answer: Room air (21%) and 100%
O₂.
◉ Total flow calculations. Answer: Key skill in managing medical gases.
, ◉ Duration calculations. Answer: Key skill in managing medical gases.
◉ Fire prevention policies. Answer: Must be followed to ensure safety
with oxygen.
◉ Transport of Medical Gases. Answer: Always use a cylinder cart;
never drag or roll.
◉ Handling Medical Gases. Answer: Only trained personnel handle
cylinders.
◉ Human error. Answer: Mislabeled cylinders or forced connections.
◉ Prevention. Answer: Inspections, signage, training.
◉ Oxygen Analyzers. Answer: Device that measures O₂ concentration in
gas mixtures.
◉ FiO₂. Answer: Fraction of inspired oxygen delivered.
◉ Critical applications of Oxygen Analyzers. Answer: Venturi masks,
HFNC, mechanical ventilation.
QUESTIONS WITH ANSWERS GRADED A+
◉ Helium-Oxygen (Heliox). Answer: Helium-Oxygen mixture used to
reduce airway resistance.
◉ Nitric Oxide (NO). Answer: A medical gas used in therapy.
◉ Medical Air. Answer: A gas used in various medical applications.
◉ Hypoxemia. Answer: A condition indicated for oxygen therapy.
◉ CO poisoning. Answer: A condition indicated for oxygen therapy.
◉ Oxygen toxicity. Answer: A hazard associated with oxygen therapy.
◉ Retinopathy of prematurity. Answer: A hazard associated with oxygen
therapy.
◉ Status asthmaticus. Answer: A condition where Heliox is used to
improve gas flow.
,◉ Upper airway obstruction. Answer: A condition where Heliox is used
to improve gas flow.
◉ Cylinder pressure (H-cylinder). Answer: ~2200 psi full.
◉ Regulated working pressure. Answer: 50 psi.
◉ American Standard Safety System (****). Answer: Safety system for
large cylinders with unique thread patterns.
◉ Pin-Index Safety System (PISS). Answer: Safety system for small
cylinders with unique pin positions.
◉ Diameter-Index Safety System (DISS). Answer: Safety system for
low-pressure connections with gas-specific diameters.
◉ Oxygen Analyzer. Answer: Used to verify FiO₂ delivery.
◉ Calibration of Oxygen Analyzer. Answer: Room air (21%) and 100%
O₂.
◉ Total flow calculations. Answer: Key skill in managing medical gases.
, ◉ Duration calculations. Answer: Key skill in managing medical gases.
◉ Fire prevention policies. Answer: Must be followed to ensure safety
with oxygen.
◉ Transport of Medical Gases. Answer: Always use a cylinder cart;
never drag or roll.
◉ Handling Medical Gases. Answer: Only trained personnel handle
cylinders.
◉ Human error. Answer: Mislabeled cylinders or forced connections.
◉ Prevention. Answer: Inspections, signage, training.
◉ Oxygen Analyzers. Answer: Device that measures O₂ concentration in
gas mixtures.
◉ FiO₂. Answer: Fraction of inspired oxygen delivered.
◉ Critical applications of Oxygen Analyzers. Answer: Venturi masks,
HFNC, mechanical ventilation.
