Unit Three

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Author:
cbr1ryder
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50509
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Unit Three
Updated:
2010-11-21 17:54:08
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Dr. Gulliford review sheet
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  1. normal adult ABG values
    pH
    Pco2
    HCO3
    PaO2
    • pH =7.35-7.45
    • Pco2=35-45
    • HCO3=22-28 mEq/L
    • PaO2=80-100
  2. normal adult male & female Hb
    • MALE 14-16g
    • FEMALE 12-15g
  3. what factors can cause shift of the oxyhemoglobin dissociation curve?
    • pH
    • Temp.
    • CO2
    • 2,3 DPG
    • Fetal Hb
    • COHb
  4. what are the four types of hypoxia?
    • Hypoxic hypoxia
    • Anemic hypoxia
    • Circulatory hypoxia
    • Histoxic hypoxia
  5. provide an example for each type of hypoxia:
    Hypoxic hypoxia
    Anemic hypoxia
    Circulatory hypoxia
    Histoxic hypoxia
    • Hypoxic hypoxia - high altidude
    • Anemic hypoxia - carbon monoxide poisning
    • Circulatory hypoxia - CHF
    • Histoxic hypoxia - cyanide poisoning
  6. RQ = what/what?
    CO2 production/O2 consumption
  7. best determinant of alveolar ventilation is
    PaCO2
  8. calculate CaO2
    Hb-23g%
    PaO2-50mmHg
    SaO2-82%
    • CaO2 = (Hbx1.34xSaO2)+(PaO2x.003)
    • 25.42% volume O2
  9. At the tissue level, diffusion of O2 into cells and CO2 out of cells into bloodstream is termed:
    internal respiration
  10. Gas exchange between the pulmonary capillaries and the alveoli:
    external respiration
  11. when lung compliance increases, the patient will typically exhibit:
    a. increased respiratory rate
    b. decreased tidal volume
    c. increased tidal volume
    d. decreased respiratory rate
    c & d
  12. when lung compliance decreases, the patient will typically exhibit:
    a. increased respiratory rate
    b. decreased tidal volume
    c. increased tidal volume
    d. decreased respiratory rate
    a & b
  13. Calculate Alveolar Ventilation:
    body weight 180
    Tidal volume 500ml
    RR is 18
    • TV - ADS (body weight)
    • 500 - 180=320
  14. Calculate alveolar minute ventilation
    Tidal Volume 400ml, RR20, Weight 150
    Tidal Volume 800ml, RR10, Weight 200
    • 400-150=250x20=5,000ml or 5L
    • 800-200=600x10=6,000ml or 6L
  15. Calculate VD/VT
    PECO2 of 28mmHg
    PaCO2 of 52mmHg
    PaO2 of 69mmHg
    • (PACO2 - PECO2)/ PACO2
    • (52-28)/52=0.46
  16. Normal anatomical shunt is caused by all of the following except:
    A. ulnar vein
    B. thebesian vein
    C. pleural vein
    D. bronchial vein
    A. ulnar vein
    (this multiple choice question has been scrambled)
  17. Restrictive lung disease commonly cause:
    A. increased V/Q
    B. decreased V/Q
    C. increased pulmonary perfusion
    B. decreased V/Q
    (this multiple choice question has been scrambled)
  18. Ventalation without perfusion is
    Deadspace (ex. Treachea) any where there are no alveoli
  19. Perfusion without ventilation is
    Shunt (ex. Pneumonia)
  20. Calculate Dynamic Compliance
    Ventalator is a PB 840, PIP is reading 37cmH2O & expiratory tidal volume is
    800ml
    • TV/PIP
    • 800/37=0.022L/cmH2O

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