Mike final portion.txt
Card Set Information
Mike final portion.txt
Mike portion Lab midterm
What is used to measure FRC?
Open-circuit (N2 wachout), closed-circuit/rebreathing (He dilution), and Thoracic Gas Volume (Vtg) (AKA body box)
Diseases in which airflow into or out of the lungs is reduced: COPD, Bronchiectasis, Asthma, Cystic Fibrosis, Upper airway obstructions
Obstructive airway diseases
Pulmonary fibrosis, Pneumoconiosis, Sarcoidosis, Diseases of chest wall and pleura, Neuromuscular disorders, CHF, Lung transplant are what kind of diseases?
Restrictive Lung Diseases
Spirometry equipment: What is used for Volume-time studies?
Chain compensated water seal and Stead-Wells water sealed direct volume displacement spirometer.
Spirometry eqipment: What is used for flow-volume loops?
Rolling seal spirometer, Bellows or wedge spirometer, and pneumotachometer.
Four lung volumes.
VT, IRV, ERV, RV
Four lung capacities.
IC, VC (FVC and SVC), FRC, TLC
What is the normal value of the diffusion capacity?
what is the gold standard for COPD diagnosis?
In an obstructive disorder, the FEV1 and FEV1% are both
In a restrictive disorder, the FEV1 and FEV1% are?
FEV1 decreased and FEV1% n or increased
What lung vol. and cap. cannot be measured directly by spirometry?
TLC, RV, and FRC
Identify three methods to measure the TLC, RV, and FRC
N2 washout, helium dilution, body plethysmorgraphy, and planimetry
What is considered a significant change in pre-to post-shift spirometric results?
5% or 200ml
What factors might account for a change in spirometric values from pre-shift to post-shift workers?
Fatigue, cigarette smoking or second hand, exposure to dusts and fumes
What is considered a significant change in annual spirometric results?
Greater than 12%
What factors might account for changess in annual spirometry?
Age, Disease, smoking, seasonal allergies, significant weight gain or loss, axposure to occupational susts and fumes
Practice 5, 6, and 7
Adding lung volumes and capacities
What would saw-tooth on the inspiratory loop of a flow-volume tracing most likely represent?
Variable extrathoracic obstruction of soft tissue, e.g. sleep apnea
How do you determine the accuracy of a water-sealed spirometer?
what does the angle of louie represent?
The placement of carina
What is the Bat wing a sign of?
cardigenic Pulmonary edema
What is the leteral decubitus view used for?
Identification of Pleural effusion
Also look at the critical thinking questions from before
he said there will be some from there.