Respiratory Physiology & CPET Flashcards Preview

ABIM Pulmonary > Respiratory Physiology & CPET > Flashcards

Flashcards in Respiratory Physiology & CPET Deck (8)
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1
Q

What does Forced Socillation Technique (FOT) diagnose?

A

small airway obstruction.

2-5cm H2O oscillation forced through mouthpice, measuring resistance.

2
Q

Repeatability requirements for spirometry?

A

FEV1 and FVC within 0.15L of all 3 trials.

3
Q

Good start requirements for spirometry?

A

Extrapolated volume <5% of FVC or <0.15L

4
Q

For broncho-provocation challenge, what is a positive test?

A

Dose of the provocative substance that causes drop in FEV1 of 20%. Named PC20 or PD20.

5
Q

What medications can be continued for bronco-provocation challenge testing?

A

ICS, LTRAs.

6
Q

How do you test for needing oxygen for air travel?

A
  • HAST = High Altitude Simulation Testing.
  • Indicated if SpO2<92% or PaO2 <70.
  • Tested by giving FiO2 15.1% for 20 minutes.
  • If SpO2 falls below 85%, or PaO2 <55, then give O2 for air travel.
7
Q

MCID for 6MWT distance?

A

30m

8
Q

Flow-volume loops shift which direction for COPD vs which direction for restrictive disease? (Left vs right)

A

Left for COPD; right for restriction.