Exam 1 Caring for the Client with Upper Airway Conditions Flashcards
What is laryngeal obstruction?
obstruction of larynx
What can obstruction of larynx lead to?
life threatening hypoxia or suffocation
What are causes of laryngeal obstruction?
Edema of the glottis
Acute laryngitis
Anaphylaxis
Laryngospasm
Aspiration
What are risk factors of laryngeal obstruction?
Hx of allergies
Inhalation/ingestion of foreign body
Tumor
Family history of airway problems
ACE inhibitors
Throat pain/fever
Throat surgery
Previous trach
What are clinical manifestations of laryngeal obstruction?
Difficulty breathing, labored breathing
Hoarseness
Stridor
Croupy cough
Expectoration of blood/mucus
Decreased O2 sat
Use of accessory muscles
What two clinical manifestations are an emergency and need to be handled right away in a pt with laryngeal obstruction?
Hoarseness
Stridor
What is diagnosis made based on for a pt with laryngeal obstruction?
S/S
X-ray
What is medical and nursing management of laryngeal obstruction?
ABCs: FIRST
Heimlich maneuver
Five quick, sharp abdominal thrusts below xiphoid process; turn on side
Finger sweep in mouth
Bag and Mask resus
Immediate trach (last resort)
Treat underlying cause
What is impaired in acute respiratory failure?
ventilation and perfusion
Ventilation or perfusion in the lungs is impaired due to
decreased 02 delivery to alveoli
Inability of alveoli to remove C02
Damage to alveoli
Perfusion is adequate, but impaired ventilation
Ventilation is adequate, but impaired perfusion
What are causes of acute respiratory failure?
Hypoxemic/Oxygenation respiratory failure (too little 02 reaches tissues)
Hypercapnic/Ventilatory respiratory failure (too little 02 is exchanged for C02)
What are causes of Hypoxemic/Oxygenation respiratory failure (too little 02 reaches tissues)
Due to lack of perfusion to capillary bed or conditions that alter gas exchange
Anemia
Hemorrhage
Intracardiac shunts
ARDS
Pulmonary edema
What are causes of Hypercapnic/Ventilatory respiratory failure (too little 02 is exchanged for C02)
Due to mechanical abnormality of lungs/chest wall, impaired muscle function, malfunction of respiratory control center in the brain
Airway obstruction (chronic bronchitis, cystic fibrosis)
Weakness of breathing (effects of anesthetics, pain, obesity, drugs)
Muscular weakness (cervical SCI, GBS, ALS, chest wall trauma, muscular dystrophy)
Lung disease (pulmonary edema, pneumonia, PE, COPD, ARDS)
Chest wall abnormalities (kyphosis, scoliosis)
What are early clinical manifestations of acute respiratory failure?
Restlessness
Fatigue
Headache
Dyspnea
Air hunger
Mild tachycardia, tachypnea
What are After clinical manifestations of acute respiratory failure?
Confusion, lethargy
Tachycardia and tachypnea
Central cyanosis
Diaphoresis
Use of accessory muscles
Decreased breath sounds and Sp02
Respiratory arrest
What are labs/diagnostics on room air for acute respiratory failure?
Pa02 < 60 (hypoxemic failure) OR PaC02 > 45 (hypercapnic/ventilatory failure) AND pH <7.35
Sp02 <90%
Chest x-ray
What is medical and nursing management for acute respiratory failure?
Goal = correct underlying cause & restore oxygenation and ventilation
Mechanical ventilation
Management in ICU
Nursing assessment
Acute Respiratory Distress Syndrome (ARDS)
A sudden systemic inflammatory response injures the alveolar-capillary membrane increased permeability to large molecules lung space to fill with fluid and blood
Alveoli can’t stay open b/c of infiltrates, blood, fluid, and lack of surfactant so they collapse
Leads to decreased gas exchange and fluid collection
Sudden, progressive pulmonary edema, increasing bilateral infiltrates on chest x-ray, hypoxemia resistant to supplemental 02, and reduced lung compliance (stiff lungs) due to surfactant dysfunction
High mortality (50-60%)
What are risk factors of ARDS
Direct and Indirect injury to lungs
What are direct injury to lungs in ARDS?
Source is in the lungs
Smoke inhalation
Near drowning
Aspiration
PE
Pneumonia and other resp. infections
Fat emboli: Long bone fracture
What are indirect injury to lungs in ARDS?
Source is not in the lungs
Septic shock most common
Massive fluid resus
Multiple blood products
DIC
Burns
Pancreatitis
Substance use/overdose
Trauma
What are clinical manifestations of ARDS?
Rapid onset of dyspnea 12-48 hours after event
Hypoxemia that does not respond to supplemental 02 (refractory)
Intercostal retractions
Crackles (not related to left HF)
Tachypnea
Cyanosis
Restlessness, confusion, or lethargy
Tachycardia
Reduced lung compliance (stiff lung)
What are diagnostic manifestations of ARDS?
Chest x-ray B/L infiltrates
Chest CT B/L patchy infiltrates with consolidation
ABG
Pa02 < 60 and 02 sats <90% on RA
PaC02 >45
pH <7.35
**Indicates hypoxemia and hypercarbia
Pa02/Fi02 ratio <300
Turn Fi02 from percentage to decimal
Divide Pa02 by Fi02.
200-300 mild; 100-199 moderate; <100 severe
What is diagnosis based on for ARDS?
History of systemic/pulmonary risk factors
Acute onset of resp. distress
B/L pulmonary infiltrates
Clinical absence of left HF
Pa02/Fi02 ratio >300