RRT ABGs
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A-a Gradient: | show 🗑
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| A-a Gradient Formula: | show 🗑
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| show | PAO2=(PB-Ph2O)FIO2-PaCO2
*PaCO2 is divided by .8*
PB=747
pH20=47
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| show | PAO2=(7xFIO2 as whole number)-(PaCO2+10)
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| show | 25-65% on 100%
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| show | 66-300
Common when PE is involved
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| Shunting: | show 🗑
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| show | Best measurement of oxygen delivered to the tissues, or the best index of oxygen transport. Measures Lung Function.
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| show | 1.34
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| "Oxygen in Plasma": | show 🗑
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| Arterial Oxygen Content Formula: | show 🗑
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| show | Total amt of oxygen carried in the mixed venous blood. Measures Heart Function.
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| show | CvO2=(Hbx1.34xSvO2)+(PvO2x.003)
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| Normal CvO2: | show 🗑
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| show | 17-20%
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| show | CvO2 is subtracted from CaO2.
Measures the oxygen consumption of the tissues.
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| show | 4-5 vol %
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| PaO2/FIO2 or P/F Ratio: | show 🗑
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| show | 380 mmHg or greater
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| A P/F Ratio of less than 200 mmHg indicates what? | show 🗑
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| A P/F Ratio of less than 300 indicates what? | show 🗑
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| Qs/Qt(Shunt)Equation: | show 🗑
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| Qt(Cardiac Output)Equation: | show 🗑
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| VO2(Oxygen Consumption)Equation: | show 🗑
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| How is PaO2 estimated from the SaO2? | show 🗑
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| show | PaCO2-PECO2x100/PaCO2
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| show | 20-40%(Up to 60% for vent pts)
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| Most common cause for an increased Vd/Vt ratio: | show 🗑
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| Desired Minute Volume Formula: | show 🗑
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| show | FIO2xDesired PaO2/Current PaO2
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| show | Don't change anything. Indicative of a chronic pt with COPD.
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| When the pH is inside the acceptable range(7.35-7.45): | show 🗑
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| show | It is Non-Compensated or Acute
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| show | A Respiratory Acidosis or Alkalosis is the diagnosis when the pH is abnormal b/c of a change in PCO2.
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| show | A Metabolic Acidosis or Alkalosis is the diagnosis when the pH is abnormal b/c of a change in HCO3-.
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| show | pH:>7.30
PaCO2:<50
PaO2:>50
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| show | pH:7.30
PaCO2:80
PaO2:80
HCO3-:38
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Created by:
Wendiej88