Respiratory Therapy Weaning Normal Values – Flashcards
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pH
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Normal: 7.40 Acceptable: 7.35-7.45 Unacceptable: < 7.35
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PCO2
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Normal: 40 Acceptable: 35-45 Unacceptable: > 45
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PO2
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Normal: 97 Acceptable: 80-100 Unacceptable: < 80
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Tidal volume
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Normal: 5-8 mL/kg Acceptable: >= 5 mL/kg Unacceptable: < 5 mL/kg
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Vital capacity
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Normal: 65-75 mL/kg (10 x Vt) Acceptable: >= 10 mL/kg (2 x Vt) Unacceptable: < 10 mL/kg (2 x Vt)
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Respiratory rate
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Normal: 12-20/min Acceptable: 8-20/min Unacceptable: > 20/min or < 8/min`
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Minute volume
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Normal: 5-6 L/min Acceptable: 10 L/min
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MIP/NIF
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Normal: -80 cm H2O Acceptable: -20 cm H2O Unacceptable: > -20 cm H2O
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MEP
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Normal: 160 cm H2O Acceptable: 40 cm H2O Unacceptable: < 40 cm H2O
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A-a DO2 (21% O2)
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Normal: 5-10 mm Hg Acceptable: 10-15 mm Hg Unacceptable: --------------
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A-a DO2 (100% O2)`
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Normal: 25-65 mm Hg Acceptable: 66-300 mm Hg Unacceptable: > 300 mm Hg
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Qs/Qt (shunt)
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Normal: <= 5% Acceptable: 20%
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Vd/Vt (deadspace)
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Normal: 20-40% Acceptable: 60%
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Cst (static compliance)
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Normal: 60-100 mL/cm H2O Acceptable: > 25 mL/cm H2O Unacceptable: < 25 mL/cm H2O
