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Semester 1 > Assessment of Mechanically Ventilated Patients > Flashcards

Assessment of Mechanically Ventilated Patients Flashcards

1
Q

Causes of Increased Airway Resistance (Increased PIP, Normal Pplat)

A
  1. Secretions
  2. Bronchoconstriction
  3. Biting ETT
  4. Kinked ETT
  5. Small ETT
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2
Q

Causes of Decreased Compliance (Increased PIP, Increased Pplat)

A
  1. ARDS
  2. Pulmonary Fibrosis
  3. Pneumothorax
  4. Scoliosis
  5. Obseity
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3
Q

Resistance Formula

A

▲ Pressure / Inspiratory Flow rate

R(aw) = {(PIP - Pplat) / Vi} x 60

R(aw) = cmH2O/liter/second

Normal = 10-15 cmH2O/liter/second

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4
Q

PaO2 to FiO2 Ratio

A

Normal 300-500 mmHg

ARDS < 300mmHg

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5
Q

A-a Gradient

A

PAO2 = {FiO2 x (Patm - PH2O)} - (PaCO2 / R)

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6
Q

Desired CO2 Formula

A

Desired ETCO2 = (actual ETCO2 x RRcurrent) / RRdesired

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Semester 1 (15 decks)

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