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DU PA ARDS/RF
Duke PA Acute Respiratory Distress/ Respiratory Failure
Question | Answer |
---|---|
Acute hypoxemic respiratory failure that occurs after a direct or indirect pulmonary insult that cannot be attributed to heart failure | ARDS |
ARDS chest x-ray is characterized by | bilateral widespread pulmonary infiltrates |
ARDS is characterized by PaO2/FIO2 <= ____ | 200 |
Aspiration, Lung contusion and trauma, Inhalational injury, Pneumonia, Near -drowning | primary causes of ARDS |
Sepsis, Pancreatitis, Hypotension (shock) | secondary causes of ARDS |
associated with a poorer outcome | secondary causes of ARDS |
upon auscultation of lungs in ARDS you will hear | crackles |
Indications for Mechanical Ventilation typically involves a PaO2 <__mmHg, SaO2 <90% with a elevated PCO2 | 60 |
Treatment of ARDS induced hypoxemia usually requires | positive pressure ventilation |
ARDS: Mechanical Ventilation Lung Protective Strategies use | small tidal volumes |
ARDS: Mechanical Ventilation Lung Protective Strategies consider _____ to minimize elevated lung pressures | High Frequency Ventilation |
Normal mechanical ventilator tidal volume (___ ml/kg IBW) | 10-15 |
Large tidal volumes cause _____ in stiff lungs | high inflation pressures |
mechanical ventilator tidal volume in ARDS patient (___ ml/kg IBW) | 6 |
Positive End Expiratory Pressure | PEEP |
Used to keep alveoli open during the exhalation phase of respiration | PEEP |
Maintains the Functional Residual Capacity (FRC). The FRC prevents atelectasis | PEEP |
Too much PEEP can lead to | decreased cardiac output and high airway pressure |
ARDS has a ___% mortality rate | 30-40 |
ARDS has a 90% mortality rate in those with | sepsis |
Respiratory dysfunction resulting in abnormal oxygenation and ventilation severe enough to threaten the function of vital organs | respiratory failure |
Arterial blood gas values consistent with RF: PaO2 value < 60 mmHg, PaCO2 value > __ mmHg, SaO2 value < 90% | 50 |
The tip of the endotracheal tube should rest at the level of the | aortic arch |
The tip of the endotracheal tube should rest at the level of the | 2 cm above the carina |
Does not allow the patient to breathe between ventilator delivered breaths | Controlled Mechanical Ventilation |
Ideal mode for patients that are sedated and paralyzed | Controlled Mechanical Ventilation |
low VT and respiratory rates – allow hypercapnia – minimize high inflation pressures – oxygenation is maintained) | permissive hypercapnia |
method employed to decrease the incidence of barotrauma | permissive hypercapnia |
results when the lung can no longer accomplish adequate gas exchange, often fatal if left untreated | acute respiratory failure |
respiratory compromise is evident whe the PaO2 is < __mm Hg on room air | 60 |
respiratory compromise is evident whe the PaCO2 is > __mm Hg | 45 |
patients in respiratory failure with evidence of severe distress, mental deterioration, or hemodynamic instability usually require _____ | intubation and mechanical ventilation |
the adequacy of ventilator settings needs to be determined with repeated ____ | arterial blood gas levels |
the current preferred mode of ventilation is | assisted-control ventilation |
in ____ the clinician sets the tidal volume and the lowest allowed respiratory rate, however each spontaneous breath is supported | assisted-control ventilation |
considered the more physiologic ventilatory mode and is associated with a decreased work of breathing | assisted-control ventilation |
the most popular mode of ventilation in the 1980's. often associated with asynchrony of spontaneous breaths and assisted breaths | intermittent mandatory ventilation |