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DPT-772: MECHANICAL VENTILATION LECTURE EXAM QUESTIONS AND ANSWERS VERIFIED LATEST UPDATE SOLUTIONS

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DPT-772: MECHANICAL VENTILATION LECTURE EXAM QUESTIONS AND ANSWERS VERIFIED LATEST UPDATE SOLUTIONS Respiratory Failure Definition inability of the lungs to provide adequate external respiration Respiratory Failure means FAILURE → more like decrease in function For patients with respirato...

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  • November 13, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • dpt 772 mechanical ventilation lecture exam quest

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DPT-772: MECHANICAL VENTILATION LECTURE EXAM

QUESTIONS AND ANSWERS VERIFIED LATEST UPDATE

SOLUTIONS


Respiratory Failure Definition

inability of the lungs to provide adequate external respiration

Respiratory Failure means

FAILURE → more like decrease in function

For patients with respiratory failure, there is a need for

mechanical ventilation

Causes of respiratory failure

ventilatory pump failure (musculoskeletal or neuromuscular)



alveolar failure (parenchymal)



circulatory (pulmonary vasculature or cardiogenic)

Respiratory Failure

Indications for mechanical ventilation

Increased PaCO2 >50 mmHg (decreased pH <7.25) not quickly reversible with standard

treatment → placed on noninvasive mechanical ventilation like a CPAP



Decreased PaO2 < 50 mmHg with supplemental O2 use

,Decreased VE (minute ventilation) less than 10 liters/min



Decreased VC (vital capacity) less than 10 liters per min



Decreased inspiratory pressure < 25 cm H2O



Fatigue of ventilatory muscles



Protection of airway

---If someone is very sedated and everything is so relaxed, the patient is unable to keep

your airway open on their own



Consistent respiratory rate of > 30

Acute Ventilatory Failure

Supply and demand mismatch

---The load of what the patient needs and the ventilatory strength that they have

available are not equal

Respiratory Failure

Treatment

Possible attempt at non-invasive ventilation first



Intubation

, Mechanical ventilation



Treatment of problem(s) that caused respiratory failure



Wean from mechanical ventilation

Do not want to keep a patient on a

mechanical ventilator for too long

Even though the patient has a goal to be aggressively weaned from a medical

standpoint, during a session,

the patient needs more support which is an indicator that they cannot handle both the

weaning off of the ventilator and take over the work of breathing plus the physical

demands that you are asking them to do

Requires a conversation with the nurse about weaning at a

slower rate or waiting to wean them after PT consult/treatment

Clinical Objectives of Mechanical Ventilation

Reverse hypoxemia & acute respiratory acidosis



Relieve respiratory distress



Reverse ventilatory muscle fatigue (temporary rest)



Permit sedation, neuromuscular blockade or both

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