4-6 Morgan KC

What is the most prevalent cause of equipment-related adverse outcomes according to closed claims?

• Device malfunction

• Misuse of anesthesia gas delivery systems

• Improper calibration

• Lack of oxygen supply

What is the purpose of the mechanical ventilator in the anesthesia machine?

• To control the flow of medical gases

• To deliver gases to the patient's airway

• To vaporize anesthetics

• To reduce the pressure of gases

What safety feature of anesthesia machines helps ensure a minimum oxygen concentration of 25%?

• Double-circuit system design

• Pressure sensors for oxygen monitoring

• Automatic shutdown in case of oxygen failure

• Linkage of nitrous oxide gas flow to oxygen gas flow

What is the advantage of a piston ventilator in anesthesia machines?

• Enhanced temperature control

• Improved oxygen concentration

• Reduced risk of gas leaks

• Ability to deliver accurate tidal volumes

What should be avoided when using the oxygen flush valve during the inspiratory cycle of a ventilator?

• Closing the ventilator spill valve

• Decreasing the circuit pressure

• Increasing the fresh gas flow

• Opening the APL valve

What is a common cause of large discrepancies between set and actual tidal volume during volume-controlled ventilation?

• Breathing circuit compliance

• Patient's lung compliance

• Gas compression

• Ventilator peak airway pressure limit

What is the purpose of waste-gas scavengers in anesthesia equipment?

• To dispose of excess anesthetic gases

• To monitor patient CO levels

• To regulate oxygen flow

• To prevent circuit leaks

What is a relative contraindication to pulmonary artery catheterization?

• Hypertension

• Atrial fibrillation

• Right bundle-branch block

• Left bundle-branch block

What is a key factor for accurate measurements of cardiac output using a pulmonary artery catheter?

• Injectant temperature

• Electrocautery during measurement

• Catheter migration

• Arrhythmias

What is the main advantage of capnographs in anesthesia monitoring?

• Measure cardiac output

• Monitor blood pressure

• Detect mainstem bronchial intubation

• Detect esophageal intubation