Mike final portion.txt

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Mike final portion.txt
2012-10-08 19:02:04
Mike portion Lab midterm

Lab midterm
Show Answers:

  1. What is used to measure FRC?
    Open-circuit (N2 wachout), closed-circuit/rebreathing (He dilution), and Thoracic Gas Volume (Vtg) (AKA body box)
  2. Diseases in which airflow into or out of the lungs is reduced: COPD, Bronchiectasis, Asthma, Cystic Fibrosis, Upper airway obstructions
    Obstructive airway diseases
  3. Pulmonary fibrosis, Pneumoconiosis, Sarcoidosis, Diseases of chest wall and pleura, Neuromuscular disorders, CHF, Lung transplant are what kind of diseases?
    Restrictive Lung Diseases
  4. Spirometry equipment: What is used for Volume-time studies?
    Chain compensated water seal and Stead-Wells water sealed direct volume displacement spirometer.
  5. Spirometry eqipment: What is used for flow-volume loops?
    Rolling seal spirometer, Bellows or wedge spirometer, and pneumotachometer.
  6. Four lung volumes.
    VT, IRV, ERV, RV
  7. Four lung capacities.
    IC, VC (FVC and SVC), FRC, TLC
  8. What is the normal value of the diffusion capacity?
    25 ml/min/mmHg
  9. what is the gold standard for COPD diagnosis?
  10. In an obstructive disorder, the FEV1 and FEV1% are both
  11. In a restrictive disorder, the FEV1 and FEV1% are?
    FEV1 decreased and FEV1% n or increased
  12. What lung vol. and cap. cannot be measured directly by spirometry?
    TLC, RV, and FRC
  13. Identify three methods to measure the TLC, RV, and FRC
    N2 washout, helium dilution, body plethysmorgraphy, and planimetry
  14. What is considered a significant change in pre-to post-shift spirometric results?
    5% or 200ml
  15. 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
  16. What is considered a significant change in annual spirometric results?
    Greater than 12%
  17. 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
  18. Practice 5, 6, and 7
    Adding lung volumes and capacities
  19. 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
  20. How do you determine the accuracy of a water-sealed spirometer?
    3L syringe
  21. what does the angle of louie represent?
    The placement of carina
  22. What is the Bat wing a sign of?
    cardigenic Pulmonary edema
  23. What is the leteral decubitus view used for?
    Identification of Pleural effusion
  24. Also look at the critical thinking questions from before
    he said there will be some from there.