Pulmonary Disorders Flashcards
What are the 3 phases of Acute Respiratory Distress Syndrome (ARDS)?
- Exudative Phase: 24 hours after initial insult
- Proliferative Phase: 7-10 days
- Fibrotic Phase: 2-3 weeks
What is the hallmark of Acute Respiratory Distress Syndrome (ARDS)?
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Refractory Hypoxemia: as you give patients O2, their O2 levels are not improving
What happens with CO2 in patients who have ARDS (in exudative phase)
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**1.) fast breathing → increase in CO2 → respiratory alkalosis
2.) Tired / Shallow Breathing → hold onto CO2 → respiratory acidosis
- CO2 lowers –> CO2 rises (fast breathing) –> CO2 decreases (CO2 can’t leave due to shallow breathing & being tired)
What are the primary signs & symptoms of Acute Respiratory Distress Syndrome (ARDS)?
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- Atelectasis
- Refractory hypoxemia
- Decrease in lung compliance
- Surfactant (damaged cells)
What are the 8 P’s of Acute Respiratory Distress Syndrome?
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- Prevention
- PEEP: mechanical ventilation w/ positive pressure to help keep alveoli open
- Pipes & Pumps: BP is not a good indicator of fluid status (lungs must be filled for heart to work)
- Paralysis: not all intubated patients get paralytics (remember the patient needs pain meds too)
- Positioning: prone poistion
- Protein: 10 mL/hr (helps decrease complications)
- Protocol: A through F bundle (helps decrease complications)
- Pharmacologic Interventions: steroids are very helpful for decreasing inflammation
Nursing Management of Acute Respiratory Distress Syndrome (ARDS)
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- Optomize oxygenation & ventilation (lowest setting possible)
- Positioning: prone position & HOB at 30-45 degrees to prevent aspiration
- Prevent pressure injuries
- Promote secretion clearance (suctioning)
- PREVENT VENTILATIOR ASSOCIATED PNEUMONIA (VAP)
- Nutrition
- Monitor I&Os
- Monitor mental status changes
- Educate patients & family
- Medications: steroids, antibiotics, & GI drugs
What is a key sign / symptom of pulmonary disease?
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Cheyne-Stokes Respirations: alternating periods of deep (hyperapnea) & shallow (apnea) breathing
Other Signs & Symptoms of Pulmonary Disease
- Fingernail Clubbing: (Schamroth’s sign - window between nailbeds)
- Cyanosis
What are the signs & symptoms in early ARDS vs. Later ARDS?
EARLY:
* normal breath sounds to random crackles
* SOB
* decreased O2 levels
LATER:
* Increased respiratory rate
* Decreased O2
* Air hungry
* Pulmonary edema – cyanosis, mental status changes, crackles
What is the point of PEEP (Positive End Expiratory Pressure) / What does PEEP do?
Helps keep the alveoli open every time it fires
Explain the ARDS Protocol (A to F)
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- Assess, prevent, & manage pain
- Both Spontaneous Awakening Trials (SAT) & Spontaneous Breathing Trials (SBT)
- Choice of analgesia & sedation
- Delerium assess, prevent, & manage
- Early management
- Family engagement & empowerment
Nursing management of the patient with acute lung fialure includes which of the following interventions? (Select all that apply)
a.) Positioning the patient with the least affected side down
b.) Providing adequate rest between treatments
c.) Performing percussion & postural drainage every 4 hours
d.) Controlling fever
e.) Pharmaceutical medications to control anxiety
a.) Positioning the patient with the least affected side down
b.) Providing adequate rest between treatments
d.) Controlling fever
e.) Pharmaceutical medicaitons to control anxiety
What is a pulmonary embolism? What are common signs & symptoms? What is used to diagnose a PE? How are PEs treated?
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PE: blood clot in the lung
Signs & Symptoms
* Virchow Triad (venous stasis, endothelial injury, & hypercoaguability)
* Pulmonary hypertension
* Tachycardia
* Tachypnea
* Crackles
* Cough
Diagnostics:
* CT Scan (gold standard)
* ABGs
* VQ (ventilation perfusion scan)
* D-dimer
Treatment:
* Oxygen
* Heparin / Anti-coagulants (IV heparin –> oral heparin)
* Check aPTT & INR
Hallmark signs & symptoms of pulmonary embolisms
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Virchow Triad (venous stasis, endothelial injury, & hypercoaguability)
Sudden onset of:
* tachycardia
* tachypnea
* anxiety
* crackles
*cough
Pulmonary Hypertension
What is Virchow Triad?
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- Venous stasis (blood can’t go from legs back to heart)
- Endothelial injury (injury to blood vessel walls)
- Hypercoaguability (increased clotting of blood)
How are PEs diagnosed?
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- CT (gold standard)
- ABGs
- VQ Scan
- D-dimer
What is the treatment for PEs?
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- Oxygen
- Heparin / anti-coagulants (IV can then go to oral when pt is dc)
- Check aPTT & INR levels regularly
The nurse is discussing the pharmacologic treatment of a pulmonary embolsim with a nursing student. Which statement made by the nursing student indicates that the education was effective?
a.) Heparin is administered to break down the existing clots
b.) Heparin is titrated to achieve a prothrombin time of 2-3 times the control value
c.) Heparin should be continued until the warfarin is started
d.) Streptokinase can be used to treat patients with massive PEs & hemodynamic instability
d.) Streptokinase (type of TPA) can be used to treat patients with massive pulmonary embolsim & hemodynamic instability
What is atelectasis?
Complete or partial collapse of the lung
What is emphesema?
permanently enlarged air spaces in the lungs causing difficulty breathing
air trapped in the lungs causing overinflation
What are blebs or bulla (emphysema)?
Large pockets of air that sit on the lungs
What is a tension pneumothorax?
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Air build up in the pleural cavity leading to