17 Questions
What does an FEV1 of 60% predicted indicate?
Obstructive lung disease
What is the normal range for FEV1?
> 80%
What is the term for lung disease characterized by an FEV1 < 80%?
Obstructive lung disease
What test was used to measure FEV1?
Spirometry
What is FEV1?
Forced expiratory volume in the first second
What is the significance of Figure 69?
It shows the spirometry results
What is the percentage of predicted FEV1 in the given result?
60%
What is the primary factor that affects airflow in turbulent flow?
Density
What type of flow occurs when the airflow is high, gas density is high, or the tube radius is large?
Turbulent flow
How does the pressure difference relate to the flow in turbulent flow?
The pressure difference is much greater than the flow
What is the dominant factor influencing resistance in turbulent flow?
Density
Which of the following conditions is NOT a characteristic of turbulent flow?
Low gas density
What is the relationship between the pressure difference and the flow in laminar flow?
The pressure difference is directly proportional to the flow
Which type of flow is characterized by smooth, continuous motion?
Laminar flow
What is the primary difference between laminar and turbulent flow?
The motion of the fluid
Which of the following flows is NOT a type of fluid flow?
Solid flow
What is the term used to describe the flow that occurs when the airflow is neither laminar nor turbulent?
Transitional flow
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