GoConqr hat ein neues Design! Sag uns, wie es dir gefällt.

Kostenlos registrieren

Quiz

Calculations

Gelöschter Nutzer 11 Fragen Aktualisiert am 25 Aug 2016

Quiz starten

Dieses Quiz enthält Fragetypen, die sich im gewohnten Player öffnen.

Fragen in diesem Quiz (11)

  1. 1Alveolar Air Equation: Calculates partial pressure of O2 in Alveoli

    PAO2 = (([blank_start]Pb[blank_end] - 47)[blank_start]FiO2[blank_end]) - (PaCO2/[blank_start].8[blank_end])

    Shortcut: PAO2 = (7 x FiO2) - (PaCO2 +10)
    1. APb
    2. B.8
    3. CFiO2
  2. 2A-a Gradient: Measures difference between aveolar and arterial O2

    A-aDO2 = PAO2 - PaO2

    25-65 on 100% O2 is [blank_start]Normal[blank_end]
    66 - 300 is [blank_start]V/Q[blank_end] mismatch
    >300 = [blank_start]Shunting[blank_end]
    1. AShunting
    2. BV/Q
    3. CNormal
  3. 3Arterial O2 Content (CaO2) Best measurement of O2 delivered to tissues

    CaO2 = ([blank_start]Hb[blank_end] x [blank_start]1.34[blank_end] x SaO2) + (PaO2 x [blank_start].003[blank_end])
    O2 in red blood cells plus O2 in plasma

    Normal value is [blank_start]17[blank_end]-[blank_start]20[blank_end] vol% (mL/dL)
    1. AHb
    2. B1.34
    3. C.003
    4. D17
    5. E20
  4. 4Mixed Venous O2 Content (CvO2) Total O2 in venous blood

    CvO2 = (Hb x [blank_start]1.34[blank_end] x [blank_start]SvO2[blank_end]) + [blank_start]PvO2[blank_end] x .003)

    Normal [blank_start]12[blank_end] - [blank_start]16[blank_end] vol%
    CvO2 will [blank_start]decrease[blank_end] when cardiac output decreases
    SvO2 will decrease also.
    1. A1.34
    2. BSvO2
    3. CPvO2
    4. D12
    5. E16
    6. Fdecrease
  5. 5Arterial - Venous O2 Content Difference Ca-vO2 - Provides estimate of Tissue O2 consumption
    Ca-vO2 = CaO2 - CvO2

    Normal is [blank_start]4[blank_end] - [blank_start]5[blank_end] vol %

    Used in Fick equation to calculate [blank_start]Cardiac[blank_end] Output


    1. A4
    2. B5
    3. CCardiac
  6. 6Cardiac Output Qt
    Modified [blank_start]Fick[blank_end]
    Used to calculate Cardiac output when O2 consumption and O2 content differences are known
    Qt = ([blank_start]VO2[blank_end] / (Ca-vO2([blank_start]10[blank_end]))
    Normal value is 4-8 L/min
    VO2 = Qt x Ca-vO2 x 10
    1. A10
    2. BVO2
    3. CFick
  7. 7Shunt Equation
    Qs / Qt

    Portion of cardiac output that is shunted and does not participate in gas exchange

    Qs/Qt = ((A-aDO2) x .003) / (A-aDO2) x .003) + Ca-vO2

    Normal is [blank_start]3[blank_end]-[blank_start]5[blank_end] %
    Can be estimated: Assuming 5% shunt increase for each 100 torr of A-aDO2
    1. A3
    2. B5
  8. 8SaO2 Arterial O2 Saturation
    % of Hb that is bound by O2 calculated by ABG analyzer
    Measured by hemoximeter or co-ox

    Large differences in calculated and measured could be because of increased carboxyhemoglobin levels

    PaO2 is estimated by subtracting [blank_start]30[blank_end] from [blank_start]PaO2[blank_end]
    1. APaO2
    2. B30
  9. 9HB / Hct
    HB is normally [blank_start]12[blank_end] - [blank_start]16[blank_end] g/dl
    HCT is usually [blank_start]3[blank_end] times HB in percent
    1. A3
    2. B12
    3. C16
  10. 10Deadspace to Vt Ratio
    VD/Vt
    % of gas that doesn't participate in gas exchange
    Normal is [blank_start]20[blank_end]-[blank_start]40[blank_end]%

    ((PaCO2 - PeCo2) / [blank_start]PaCO2[blank_end]) x 100

    Increased VD/VT indicates deadspace disease like a [blank_start]PE[blank_end]
    1. APE
    2. B20
    3. C40
    4. DPaCO2

Informationen

Beschreibung
Der Nutzer hat seine Fachbereichs-Information gelöscht. Quiz am Calculations, erstellt von Gelöschter Nutzer am 19/08/2016.
Autor
Gelöschter Nutzer
Sprache
English
Aufrufe
35
Verlauf
Erstellt am 19 Aug 2016 · aktualisiert am 25 Aug 2016

Feedback

Worum geht es?

Wie gefällt dir das neue Design?

Dein Eindruck