Why do pressure-flow estimates of orifice size decrease in accuracy when the orifice area exceeds 80 mm2?
A) Limitations of the pneumotachograph to record high rates of airflow
B) Limitations of the transducers to detect small pressure changes
C) Limitations of the pneumotachograph to record an increase in nasal airflow
D) Limitations of the transducers to measure an increase in nasal resonance
E) Limitations of the transducers to detect a decrease in oral airflow
Correct Answer:
Verified
Q2: What does a pneumotachograph measure?
A)Volume of airflow
B)Rate
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