Anesthetic Equipment and Monitoring — Flashcards

Flashcard 51: "Fail-safe" valve is a part of the _____ pressure system of the anesthesia machine

Answer: intermediate

Flashcard 52: Mapleson _____ circuit is also referred to as Bain circuit

Answer: D

Flashcard 53: Shivering will lead to a falsely _____ in reading on pulse oximeter

Answer: decreased

Flashcard 54: Pressure regulator is a part of the _____ pressure system of the anesthesia machine

Answer: high

Flashcard 55: Mapleson _____ circuit is also referred to as Jackson Rees Modification

Answer: F

Flashcard 56: Calibrated vapourizers is a part of the _____ pressure system of the anesthesia machine

Answer: low

Flashcard 57: A capnography waveform with an **elevated baseline** (where CO2 does not return to zero during inspiration) represents:_____

Answer: **Exhausted CO2 absorber** (leading to rebreathing)

Flashcard 58: Phase _____ of the normal capnograph is also known as inspiratory downstroke

Answer: 0

Flashcard 59: Second stage O2 pressure regulator is a part of the _____ pressure system of the anesthesia machine

Answer: intermediate

Flashcard 60: _____ angle is the transition from phase II to phase III in normal capnograph

Answer: Alpha angle

Extra: The **Alpha angle** (α angle) is the transition from phase II (expiratory upstroke) to phase III (alveolar plateau) on a capnograph. Normal value: 100°–110°. An increased alpha angle indicates obstructive lung disease (e.g., COPD, asthma). The **Beta angle** (β angle) represents the transition from phase III to phase IV (inspiration). Normal value: ~90°. An increased beta angle indicates rebreathing.