Sleep/PFT Calculations Flashcards
1
Q
What is central sleep apnea?
A
primary sleep apnea
- repetitive stopping or shallow breaths reducing airflow
and ventilation
2
Q
What is obstructive sleep apnea?
A
Apneas, hypopneas and respiratory effort related arousals
3
Q
What is mixed sleep apnea?
A
Begins with Central and is followed by obstructive
4
Q
What is the AHI calculation?
A
Total events/total time
5
Q
What is a mild, moderate, and severe AHI score?
A
- mild (5-15)
- mod (15-30)
- Severe (30+ of 90% SpO2 for 20% of the night)
6
Q
Home RDI Calculation?
A
(Number of apneas + Hypopneas)/ Total Test Time
- Risk of being falsely low if the test doesn’t last all night
