atelectasis, ARDS, and ARF Flashcards
V or P: open air-filled alveoli
ventilation
V or P: intact alveolar capillary membranes
ventilation
V or P: normal blood flow through the pulmonary vasculature
perfusion
goal of providing respiratory assistance
prevent cell death (hypoxia)
T/F ventilation and perfusion must be balanced
true
atelectasis
closure or collapse of alveoli
V or P: atelectasis
ventilation; cannot exchange O2 and CO2
acute respiratory distress syndrome (ARDS)
the build up of fluid in the alveoli
T/F: the patient responds to O2 therapy
false: the patient is refractory to therapy
Examples of ARDS: Lung tissue injury
aspiration, COVID, drug ingestion, embolism, hematologic disorders, localized infection, pancreatitis, prolonged inhalation of high concentrations, sepsis, shock, trauma, E-cigarettes
the process of ARDS
lung injury > inflammation > cell and chemical mediator > collapsed alveoli > increased resistance > decreased lung compliance
the circle of ARDS
severe hypoxia > shunt > refractory > acute lung injury > inflammation > hypoxia
what does hypoxemia represent
pulmonary edema
S&S of hypoxemia
rapid onset of severe dyspnea, SPO2 90-92%, increased RR, HR, headache, restlessness, confusion, SOB
medical interventions for ARDS
treat underlying cause, supplemental O2, support severe respiratory dysfunction
T/F the nurse should monitor BP for severe hypotension
True: interstitial leak of fluid causes decrease volume in vessels
when treating the hypovolemia the nurse should monitor for what complication
fluid overload
nursing interventions for ARDS
frequent assessments, enhance ventilation and removal of secretions, coughing and deep breathing, treat underlying cause
Acute respiratory failure (ARF)
acute or chronic impairment of gas exchange between lungs and blood
ABG levels for ARF
PaCO2 > 50, pH < 7.35, PaO2 < 60
clinical picture
progression of hypoxemia to hypoxia
medical interventions for ARF
correct underlying cause, restore gas exchange, ET intubation + mechanical ventilation
nursing interventions for ARF
assist and support with intubation risk, support mechanical ventilation, monitory oxygenation, patient and family education, medications