Shared Flashcard Set

Details

Interpreting Pulmonary test
Khazeni 4/3/2009
16
Medical
Professional
04/06/2009

Additional Medical Flashcards

 


 

Cards

Term
Indications for PFT
Definition
dyspnea
evaluatoion of disease progression and treatment response
preoperative evaluation
establishment of disability
early detection of lung disease in smokers
Term
types of PFT
Definition
spirometry
static function (lung volume)
expiraotry flow
diffusing capacity
arterial blood gases
Term
MIP/MEP
Definition
used for patients with neuromuscular disease
Term
Obstruction
Definition
airflow limitations
Term
recstriuction
Definition
not airflow obstruction
parenchymal-lung
or extraparenchymal-chest wall diagphragm
Term
phsyiology of obstruction
Definition
asthma and chronic bronchitis airway inflmattion, mucous hypersecretion, smooth muscle spasm

emphysema-dynamic collapse loss of tethering
loss of elastic recoil
Term
physiology of restriction
Definition
scarring affects volume
increased elastic recoil
shrunken down size
impaired gas exchange
Term
neuromuscular defects, chest wall stiffness, obesity
Definition
extraparenhymal
cause restriction and smaller volume
Term
measurmeent of FLC
Definition
helium diluation
nitrogen washout
body plthysmogprahy

RV and TLC not measured but calculated
Term
diffusing capacity
Definition
measurement of gas transfer from atmosphere to alveolar capillary hemoglobin
Term
DLCO
Definition
diffusing capacity measurement of gas transfer from atmospher to alveolar capillary hemoglobin
Term
what does diffusing cpacity reflect?
Definition
on the capillary side it reflects red blood cell mass
on teh alveolar side it reflects diffusing cpacity and surface
Term
decreased DLCO
Definition
alveolar side: emphysema, interstitial lung disease, pulmonary edema

capillary side: anemia, pulmonary vascular disease
Term
increased DLCO
Definition
cpailarry side: polycythemia early heart failure, hemorrhage
Term
obstruction
Definition
FEV1 low
decreased ration of FEV1/FVC
TLC normal or increased
diffusion: normal or decreased
examples, chronic bronmchitis, emphysema, asthma
Term
restriction
Definition
tlc reduced
proportionally decreased expiraotrry flowfev1/fvc is normal to increased

fibrosis
neuromuscular
chest wall diaphragm issues
Supporting users have an ad free experience!