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NU 214 Test 2
Acute Respiratory Failure and Mech vent
47
Nursing
Pre-School
02/20/2014

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Cards

Term
Improve Alveolar Ventilation ?
Definition
  • maintain patent airway
    • effective coughing
    • suction/position
  • secretions
    • humidification
    • hydration
    • chest p/t
    • aerosols
    • nebulizers
Term
NIV is ?
Definition

non invasive ventilation

  • spontaneous respiration
  • copd -hypercapnic respiratory distress
  • post op resp distress
  • Neuromuscular resp failure
  • asthma/CF
  • ards
  • DNI
  • pulmonary edema
  • sleep apnea
Term
Hypercapnic is ?
Definition
An increased concentration of carbon dioxide in the blood
Term
Cardiogenic pulmonary edema is ?
Definition
a condition in which fluid accumulates in the lungs, usually because the heart's left ventricle does not pump adequately
Term
Contraindications of NIV  are ?
Definition
  • coma
  • cardiac arrest/MI/Ventricular arrhythmias
  • respiratory arrest
  • intubation
  • shock
  • GI bleed
  • status epilepticus
Term
Managing Symptoms respiratory failure
Definition
  • breathing problems
  • fatigue
  • psychological support
Term
Criteria needed for NIV ?
Definition
  • Patient cooperation
  • dyspnea
  • tachypnea
  • increased work of breathing
  • hypercapnic
  • hypoxemia
Term
Predictors of successful NIV are ?
Definition
  • increase in ph by 0.06
  • decrease co2
  • correction of resp acidosis
Term
Lung volume is measured in ?
Definition
liters or milliliters
Term
Pressure is measured in ?
Definition
centimeters of water
Term
Signs of respiratory failure ?
Definition
  • worsening of clinical appearance /CXR
  • hypoxemia
  • hypercapnic
Term
Hypoxemia is ?
Definition
low o2 in the blood
Term
50/50 club is ?
Definition
  • Acute respiratory failure
  • Pao2 <50 mmHg (80-100) hypoxemia
  • PaCO2 >50 mmHg(35-45) hypercapnia
  • Ph <7.35 (7.35-7.45)Acidosis
Term
Pathophysiology for Acute respiratory failure is ?
Definition
  • Ventilation or perfusion mechanisms are impaired
    • failure to ventilate
    • failure to oxygenate
  • results in
    • hypoxemia - restless state
    • hypercapnia - sleeping state
Term
Causes of acute respiratory failure ?
Definition
  • ↓ respiratory drive
  • chest wall/lung parenchymal dysfunction
  • post op
Term
Diagnostic tests for ARF ?
Definition
  • pulse ox
  • ABG
  • CXR
  • CBC
Term
Cardiac output is ?
Definition
  • co = stroke volume x hr
  • stroke volume is 2/3 amount of blood pumped out of left ventricle
Term
Symptoms of decreased Cardiac Output ?
Definition
  • reduced BP
  • weakness/fatigue/dizziness
  • edema/↓Urine output
  • altered mental status
  • cold clammy
  • chest pain
Term
Goals or outcomes for acute respiratory failure ?
Definition
  • relieve bronchospasms
  • reduce pulmonary congestion
  • mechanical ventilation
Term
ARDS is ?
Definition
  • acute respiratory distress syndrome
  • lung injury
  • pulmonary edema
  • severe hypoxemia
  • leads to respiratory failure
Term
Direct lung injury causes
Definition
  • aspiration
  • pneumonia
  • pulmonary contusion
  • near drowning
  • prolonged inhalation of O2, smoke, toxic substances
Term
indirect lung injury ?
Definition
  • sepsis
  • shock
  • drug overdose
  • fat emboli
  • prolonged hypotension
  • nonthoracic trauma
  • head injury
  • uremia
  • acute pancreatitis
  • dic, blood transfusions
Term
Three main phases of ARDS ?
Definition
  • exudative - acute inflammotary phase
  • proliferative - ↑ capillary permeability
  • fibrotic - recovery phase
Term
Patho of ARDS is ?
Definition
  • lung injury causes inflammatory response
  • interstitial damages
  • ↓ lung compliance and severe hypoxemia
  • non ventilating non functioning lung areas
  • refractory hypoxemia
Term
Clinical signs or presentation of ARDS ?
Definition
  • severe dyspnea
  • hypoxemia
  • rapid shallow breathing - respiratory alkalosis
  • rhonchi, crackles, cyanosis, intercostal rectractions
  • tachycardia, hypotension, ↓ urine output
Term
medical management of ARDS ?
Definition
  • Oxygenation ventilator - low tidal volume , PEEP
  • drug therapy
  • nutritional / prone support
  • permissive hypercapnia
Term
Nutritional for ARDS is ?
Definition
  • high metabolic demand
  • enteral nutritional support preferred
  • calories - high, protein, fatty acids
  • fat calories
Term
Permissive hypercapnia is ?
Definition
  • protective mechanism from injury from inflammation
Term
Nurse interventions for ARDS ?
Definition
  • frequent assessments
  • coughing
  • suctioning
  • frequent T / P
  • decreased cardiac output
Term
Indications for mechanical ventilation ?
Definition
  • failure of ventilation
  • Acute/Chronic respiratory failure
  • chest injury
  • Left ventricular failure/pulmonary disease
  • neuromuscular/ms disease
  • CNS disease/depression
Term
Tidal volume is ?
Definition
  • volume of air inhaled and exhaled from the lungs
Term
PEEP is ?
Definition
  • postive end expiratory pressure
  • maintenance of above atmospheric pressure at the airway throughout expiration phase
  • adjusts pressure at expiration
  • re inflates / improves lung compliance
  • decrease cardiac output
Term
Negative pressure ventilation ?
Definition
  • rarely used
  • for neuromuscular diseases
  • iron lung
  • chest cuirass
Term
complications of negative pressure ventilation are ?
Definition
  • limited access for patient care
  • inability to properly monitor pulmonary mechanics
  • patient discomfort
Term
Positive pressure ventilation is ?
Definition
  • ↑ pressure to the lungs to improve gas exchange
  • lungs are physically filled/ventilated with air
Term
Positive ventilation modes are ?
Definition
  • control modes
  • supportive modes
Term
mechanical ventilation modes are ?
Definition
  • Assist / control
  • ventilation / volume regulated pressure control
Term
Assist / Control ?
Definition
  • set Tidal volume / respiratory rate
Term
Pressure control ventilation is ?
Definition
  • set upper airway pressure / respiratory rate
  • tidal volumes vary according to lung compliance
Term
Continuous positive airway pressure is ?
Definition
  • CPAP
  • for spontaneously breathing patients to improve oxygenation
  • weaning mode
  • nocturnal ventilation - sleep apnea
Term
Bi level positive airway pressure is ?
Definition
  • BiPap
  • nocturnal hypoventilation d/t neuromuscular disease, chest wall deformity, obstructive sleep apnea, copd
  • to prevent intubation
  • prevent re intubation
  • contraindicated in
    • thick secretions, gastric distention, aspiration, claustrophobia
Term
complications from mechanical ventilation are ?
Definition
  • lung injury - excessive pressure "baro"
  • ventilator associated pneumonia VAP
    • pseudomonas
    • gram neg bacilli
    • staphylococci
Term
Outcomes from mechanical ventilation are ?
Definition
  • oxygenate
  • patent airway
  • lungs clear
  • abg within normal limits
  • regular and easy respiratory rate
Term
Interventions for ventilation ?
Definition
  • auscultate breath sounds
  • hyperoxgenate/suction
  • bronchodilators and mucolytics
  • T and P
  • advance activity
  • pulse ox
Term
Neuromuscular blocking agents are ?
Definition
  • NMBA
  • improvement in severe hypoxemia
  • paralysis improves pt-vent synchronism
  • reduces O2 consumption
  • improves chest wall compliance
  • anti inflammatory effects
  • may increase mortality
  • weaning more difficult
  • increase neuromuscular weakness
Term
Sedatives used with ventilators ?
Definition
  • lorazepan - ativan
  • midazolam - versed
  • propofol - diprivan
Term
Paralytics used with ventilators ?
Definition
  • pancuronium - pavulon
  • rocuronium - zemuron
  • vecuronium - norcuron
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