Anesthesia equipment failure troubleshooting and the anesthesia technician's role during an intraoperative emergency tested on the Cer.A.T. certification exam.
29 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the anesthesia technician's first action when the oxygen supply failure alarm sounds?
- Immediately open the emergency backup oxygen cylinder and verify oxygen flow to the patient.
- What safety device automatically cuts off nitrous oxide and other gas flow when oxygen pressure drops below a threshold?
- The oxygen failure protection device (fail-safe valve).
- What color are medical oxygen cylinders in the United States?
- Green.
- What color are nitrous oxide cylinders in the United States?
- Blue.
- What safety system prevents an oxygen regulator from being attached to the wrong gas cylinder?
- The pin index safety system (PISS).
- What safety system prevents pipeline hoses of different gases from being connected to the wrong wall outlet?
- The diameter index safety system (DISS).
- Approximately what pressure does a full E-cylinder of oxygen read?
- About 1900 to 2200 psi.
- What color change in soda lime CO2 absorbent indicates it is exhausted and needs replacement?
- It turns violet (purple).
- What is the recommended action if CO2 absorbent is suspected of being desiccated?
- Replace the absorbent before use.
- A rising inspired CO2 reading on capnography during a case suggests failure of what circle system component?
- A unidirectional (one-way) valve.
- What is the most common cause of a sudden loss of the capnography waveform during a case?
- Esophageal intubation or a circuit disconnection.
- What test checks the anesthesia machine's breathing circuit for leaks by pressurizing it to about 30 cm H2O with the APL valve closed?
- The positive pressure leak test.
- What test checks the anesthesia machine for leaks between the flowmeters and the common gas outlet?
- The negative pressure leak test.
- What part of the anesthesia machine does the high pressure leak test check?
- The system from the gas cylinder to the first-stage pressure regulator.
- What happens if the APL (adjustable pressure limiting) valve becomes stuck fully closed during manual ventilation?
- Circuit pressure rises rapidly, risking barotrauma to the patient.