ABA Anesthetic Equipment and Technology Flashcards
6 cards from real ABA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ABA Anesthetic Equipment and Technology flashcards as text
What physiologic parameter does a pulse oximeter directly measure?
Answer: Functional oxygen saturation of hemoglobin (SpO2)
Pulse oximetry uses differential light absorption at two wavelengths to measure the functional oxygen saturation of hemoglobin non-invasively.
Which monitoring modality is used to quantitatively assess the degree of neuromuscular blockade intraoperatively?
Answer: Train-of-four (TOF) stimulation
TOF stimulation applies four electrical stimuli to a peripheral nerve and counts the resulting twitches to quantify residual neuromuscular blockade.
What is capnography's most critical use during induction of general anesthesia?
Answer: Confirming correct endotracheal tube placement in the trachea
A sustained end-tidal CO2 waveform on capnography is the gold standard for confirming correct endotracheal tube placement in the trachea.
What is the normal end-tidal CO2 (EtCO2) range during general anesthesia with normoventilation?
Answer: 35-45 mmHg
Normal EtCO2 during anesthesia is 35-45 mmHg, reflecting normoventilation and adequate alveolar CO2 elimination.
The Bispectral Index (BIS) monitor derives its numerical output from processed signals of which physiologic source?
Answer: Electroencephalogram (EEG)
BIS analyzes processed EEG signals from frontal scalp electrodes to provide a numerical index (0-100) representing the patient's level of consciousness.
What is the primary life-threatening consequence of an undetected anesthesia circuit disconnection during mechanical ventilation?
Answer: Hypoventilation leading to progressive hypoxia
Circuit disconnection causes immediate cessation of ventilation, resulting in hypoventilation and progressive hypoxia if not promptly identified.