Respiratory Muscle Dysfunction

Respiratory Muscle Dysfunction is a topic covered in the Pocket ICU Management.

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First Things First (assess & treat for the following)

  • Is pt able to adequately ventilate?
    • Spontaneously breathing pt should be intubated if
      • New or worsening respiratory acidosis
      • Unable to handle respiratory secretions
      • Increased & unsustainable work of breathing: rapid shallow breathing, tachycardia, accessory muscle use, abdominal paradox
    • Mechanically ventilated pt should have weaning trial interrupted or ventilatory support otherwise increased if
      • Tachypnea
      • Diminishing tidal volume on spontaneous breaths
      • Tachycardia otherwise unexplained
      • Hypoxia & respiratory acidosis late signs
  • Is there a reversible explanation for apparent weakness?
    • Receiving narcotics, benzodiazepines, other sedatives
    • Presence of any focal neuro abnormalities warrants urgent evaluation for new CNS injury or insult.
    • Electrolyte, calcium, magnesium, or phosphorus deficiency
    • Rule out causes of increased minute ventilation due to increased CO2 production (sepsis, fever, overfeeding carbohydrates) or increased dead space.

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Last updated: April 30, 2010

Citation

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TY - ELEC T1 - Respiratory Muscle Dysfunction ID - 534080 Y1 - 2010/04/30/ BT - Pocket ICU Management UR - https://anesth.unboundmedicine.com/anesthesia/view/Pocket-ICU-Management/534080/all/Respiratory_Muscle_Dysfunction PB - PocketMedicine.com, Inc DB - Anesthesia Central DP - Unbound Medicine ER -