Exam 1 Caring for the Client with Upper Airway Conditions Flashcards

1
Q

What is laryngeal obstruction?

A

obstruction of larynx

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2
Q

What can obstruction of larynx lead to?

A

life threatening hypoxia or suffocation

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3
Q

What are causes of laryngeal obstruction?

A

Edema of the glottis
Acute laryngitis
Anaphylaxis
Laryngospasm
Aspiration

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4
Q

What are risk factors of laryngeal obstruction?

A

Hx of allergies
Inhalation/ingestion of foreign body
Tumor
Family history of airway problems
ACE inhibitors
Throat pain/fever
Throat surgery
Previous trach

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5
Q

What are clinical manifestations of laryngeal obstruction?

A

Difficulty breathing, labored breathing
Hoarseness
Stridor
Croupy cough
Expectoration of blood/mucus
Decreased O2 sat
Use of accessory muscles

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6
Q

What two clinical manifestations are an emergency and need to be handled right away in a pt with laryngeal obstruction?

A

Hoarseness
Stridor

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7
Q

What is diagnosis made based on for a pt with laryngeal obstruction?

A

S/S
X-ray

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8
Q

What is medical and nursing management of laryngeal obstruction?

A

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

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9
Q

What is impaired in acute respiratory failure?

A

ventilation and perfusion

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10
Q

Ventilation or perfusion in the lungs is impaired due to

A

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

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11
Q

What are causes of acute respiratory failure?

A

Hypoxemic/Oxygenation respiratory failure (too little 02 reaches tissues)
Hypercapnic/Ventilatory respiratory failure (too little 02 is exchanged for C02)

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12
Q

What are causes of Hypoxemic/Oxygenation respiratory failure (too little 02 reaches tissues)

A

Due to lack of perfusion to capillary bed or conditions that alter gas exchange
Anemia
Hemorrhage
Intracardiac shunts
ARDS
Pulmonary edema

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13
Q

What are causes of Hypercapnic/Ventilatory respiratory failure (too little 02 is exchanged for C02)

A

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)

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14
Q

What are early clinical manifestations of acute respiratory failure?

A

Restlessness
Fatigue
Headache
Dyspnea
Air hunger
Mild tachycardia, tachypnea

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15
Q

What are After clinical manifestations of acute respiratory failure?

A

Confusion, lethargy
Tachycardia and tachypnea
Central cyanosis
Diaphoresis
Use of accessory muscles
Decreased breath sounds and Sp02
Respiratory arrest

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16
Q

What are labs/diagnostics on room air for acute respiratory failure?

A

Pa02 < 60 (hypoxemic failure) OR PaC02 > 45 (hypercapnic/ventilatory failure) AND pH <7.35
Sp02 <90%
Chest x-ray

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17
Q

What is medical and nursing management for acute respiratory failure?

A

Goal = correct underlying cause & restore oxygenation and ventilation
Mechanical ventilation
Management in ICU
Nursing assessment

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18
Q

Acute Respiratory Distress Syndrome (ARDS)

A

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%)

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19
Q

What are risk factors of ARDS

A

Direct and Indirect injury to lungs

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20
Q

What are direct injury to lungs in ARDS?

A

Source is in the lungs
Smoke inhalation
Near drowning
Aspiration
PE
Pneumonia and other resp. infections
Fat emboli: Long bone fracture

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21
Q

What are indirect injury to lungs in ARDS?

A

Source is not in the lungs
Septic shock most common
Massive fluid resus
Multiple blood products
DIC
Burns
Pancreatitis
Substance use/overdose
Trauma

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22
Q

What are clinical manifestations of ARDS?

A

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)

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23
Q

What are diagnostic manifestations of ARDS?

A

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

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24
Q

What is diagnosis based on for ARDS?

A

History of systemic/pulmonary risk factors
Acute onset of resp. distress
B/L pulmonary infiltrates
Clinical absence of left HF
Pa02/Fi02 ratio >300

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25
What is medical management of ARDS?
Identification and treatment of underlying causative condition Intubation and mechanical ventilation Adequate fluid volume Supplemental 02 Positive End-Expiratory Pressure Pharmacologic Therapy Nutritional Therapy
26
What is Positive End-Expiratory Pressure?
Helps to keep the alveoli expanded Increases oxygenation and improve lung expansion
27
What is the goal of PEEP?
Pa02 >60 OR 02 sats >90% at lowest possible Fi02 Need higher levels of PEEP for moderate/severe ARDS 10-20 mm H20 Done with ventilators; may require sedation
28
What are complications of Positive End-Expiratory Pressure?
Increased thoracic pressure Puts pressure on the heart; Decreases preload on heart  decreased cardiac output and hypotension Give inotropic or vasopressors, IV crystalloids or colloids Monitor pulmonary wedge pressures Barotrauma  hyperinflation of the lung  pneumothorax or SQ emphysema Monitor high pressure alarms; chest tube
29
What is pharmacologic therapy for ARDS?
Sedatives (benzos) To calm anxiety and agitation Use with caution Neuromuscular blocking agents Paralyzes client to facilitate ventilation and decrease oxygen consumption; Doesn’t sedate or relieve pain! ONLY given to clients on mechanical ventilation DVT and GI prophylaxis Corticosteroids Antibiotics
30
Nutritional therapy for ARDS?
Enteral nutrition Aspiration precautions Confirm placement Daily weights I&Os
31
What is nursing management for ARDS?
Turns frequently Prone position Improves oxygenation; mobilizes secretions; improves ventilation and perfusion Explain all procedures Prevent infection and complications from immobility Vent care Suction PRN Provide emotional support Collaboration with interdisciplinary team
32
What are example of artificial airways?
Temporary or permanent Endotracheal Tracheostomy
33
What do artificial airways do?
Provides adequate ventilation; can be used in conjunction with mechanical ventilation
34
What can artificial airways cause?
Discomfort Thicker secretions Ulceration Inability to communicate Decreased swallowing reflexes  increases risk of aspiration
35
When is Endotracheal Intubation used?
if ventilator support required is less than 10 days
36
Why is Endotracheal intubation cuff inflated?
to prevent air leak, prevent movement, and prevent aspiration
37
What does ETT low cuff pressure increase the risk for
increased aspiration pneumonia
38
What does ETT high cuff pressure increase the risk for?
tracheal bleeding, ischemia, pressure necrosis
39
What should be deflated before ETT is removed?
Cuff
40
How do you verify ETT placement?
Chest X-ray Auscultate B/L lung sounds
41
What are indications for Tracheostomy Tube?
can be temporary or permanent : bypass upper airway obstruction, allows removal of tracheobronchial secretions, long-term use of mechanical ventilation, prevent aspiration, replace ETT
42
What is the procedure for Tracheostomy Tube?
Obturator guides insertion of cuffed trach; removed immediately after placement ALWAYS HAVE OBTURATOR AND SPARE CUFFED TRACH (SAME SIZE) AT BEDSIDE Held in place by trach tie
43
What type of Trach tube is required for mechanical ventilation?
Cuffed trach
44
What type of Trach tube allows for vocalization with hole in tube?
Fenestrated
45
What type of tube is NOT used for mechanical ventilation?
Uncuffed patient covers end of tube to talk
46
What are complications of artificial airways ETT and TT
Bleeding Pneumothorax Air embolism SQ or mediastinal emphysema Laryngeal nerve damage Posterior tracheal wall penetration Dysphagia Tracheal dilation, ischemia, and necrosis Infection Accumulation of secretions
47
How to prevent complications of artificial airways?
Warmed humidified 02 Maintain cuff pressure Skin, lung assessment Maintain adequate hydration & skin integrity Prevention of VAP Sterile technique with care
48
What is nursing care for artificial airways?
Semi-fowler’s Prevent infection Trach care Provide effective means of communication Passy-Muir Valve: positive-closure, one-way speaking valve; allows client to talk with exhalation Tracheal suction Sterile procedure Can use in-line suctioning Managing the cuff Keep inflated; monitor every 8 hours Must be < 25 mm H20
49
What is purpose of intubation and mechanical ventilation?
can be temporary or permanent - Airway protection - Helps with airway clearance for those who can’t manage secretions - Management of respiratory function during surgery - Rest for muscular fatigue - Increased Fi02 for hypoxic client - Increased flow and pressure to ensure adequate ventilation
50
What is a time-cycled type of ventilator?
Stop inspiration at a preset time; time regulates the amount of air delivered
51
What is volume-cycled type of ventilator?
Volume of air delivery is preset and relatively consistent Once air is delivered, vent cycles off and allows for passive exhalation
52
What is pressure-cycled type of ventilator?
Deliver flow of air on inspiration at preset pressure to allow for passive exhalation Volume of air varies and inconsistent
53
Ventilator modes
Controlled Mandatory Ventilation Assist Control Synchronized Intermittent Mandatory Ventilation Pressure support ventilation PEEP
54
What is controlled mandatory ventilation mode?
delivers set tidal volume at a set rate
55
What is assist control ventilation mode?
delivers a set tidal volume but allows the client to breath their own resp. rate
56
What is synchronized intermittent mandatory ventilation?
delivers a number of breathes at a preset tidal volume; ensures minimum amt of breaths with adequate tidal volume; client breathes spontaneously, and machine supports; can be used for weaning MAKES SURE PT IS ACHIEVING TARGET NUMBER OF BREATHS IN MINUTE
57
What is pressure support ventilation?
the patient breathes spontaneously but uses additional pressure during inspiration; used in weaning
58
What is PEEP ventilation mode?
preset pressure delivered during expiration; treats persistent hypoxemia; add 5-10 cm H20
59
What is nursing management for patient on ventilator?
Continually assess respiratory status (Q1-2 hr) Administer meds: sedation, analgesics, GI and DVT prophylaxis, Adequate suctioning Meticulous oral and skin care Turn and repositioning Early mobility (ROM) Document ETT placement at the teeth/lips Provide adequate nutrition Soft wrist restraints per protocol Develop alternative methods of communications Coping interventions and stress reduction techniques
60
What is the equipment for patient on ventilators?
Assess the ventilator frequently Have an AMBU bag, obturator, and spare tube at bedside ALWAYS Assess cuff pressure Be aware of alarms Don’t just rely on the monitor, always assess the client!
61
What is the cause of Low-Pressure alarm?
Low exhaled volume Causes: disconnection from the machine/tubing, low cuff pressure, tube displacement
62
What is the cause of High-Pressure alarm?
Resistance or obstruction so pressure increases Causes: kink in the tubing, pneumo, bronchospasm, coughing, pulmonary edema, client biting the tube, excessive secretions
63
How to start weaning patients from ventilation?
Process of removing mechanical ventilation Various criteria for weaning Suction Deflate the cuff before removing Remove the tube during peak inspiration Assess VS Q5 minutes Encourage coughing, deep breathing, and IS