Respiratory Flashcards
I Ate Ten Eggs At Twelve
- I: IVC
- Ate: T8
- Ten: T10
- Eggs: Esophagus
- At: aorta
- Twelve: T12
IRV is
Air that can still be breathed in after normal inspiration
From top of TV all the way up
ERV
Amount of air breathed out after passive exhale
From bottom of TV to top of RV
RV is
Air in lung after maximal expiration
IC is
IRV + TV
FRC is
RV + ERV
VC is
IRV + TV + ERV
Physiologic dead space equation
VT x [PaCO2 - PECO2] / PaCO2
<span><strong>T</strong>aco <strong>Pa</strong>co <strong>Pe</strong>co <strong>Pa</strong>co</span>
Right shift of Oxygen-hemoglobin dissociation curve:
BAT ACE
INCREASE IN:
- BPG
- Altitude
- Temperature
- Acid
- CO2
- Exercise
O2 content =
(O2 binding capacity x % saturation) + dissolved O2
Perfusion limited gas (3)
- O2 (Normal health)
- CO2
- N2O
Diffusion limitied gas (2)
- O2 (emphysema, fibrosis)
- CO
Pulmonary Vascular Resistance =
Ppulm artery - PL atrium / CO
Alveolar gas equation =
PIo2 - [Paco2 / R]
Haldane effect
RBCs release CO2
Bohr effect
Unloading of O2
Most common cause of Rhinosinusitis (3)
- S. pneumonia
- H. influenzae
- M. catarrhalis
Homan sign is
Dorsiflexion of foot causing calf pain in DVT
Obstructive lung diseases (4)
- Chronic bronchitis
- Emphysema
- Asthma
- Bronchiectasis