Unit 1 - Bronchial Hygiene Therapy Flashcards
(49 cards)
Airway clearance therapy uses what?
Noninvasive techniques to improve gas exchange
Normal clearance requires three things:
Patent airway, Functional mucocilary escalator, effective cough
What can an effective cough do?
Move mucus from lower airways to upper airways (to be coughed out)
Abnormal clearance is any abnormality that alters: 5 factors:
Airway patency, Mucocilary function, Breathing muscle strength, secretion thickness, cough reflex
Normal clearance 4 steps to cough:
Irritation, Inspiration, Compression, Expulsion
Retention of secretions may result in two things:
Full obstruction or mucus plugging, partial obstruction that restricts airflow.
Full obstruction results in what?
Atelectasis - causes hypoxemia due to shunting.
Partial obstruction can do what?
Increase WOB, Air-trapping, lung over-distention, and V/Q imbalances.
Diseases associated with abnormal clearance:
CF, Bronchiectasis, Neuromuscular diseases
Intubated patients may have these factors associated with impaired mucocilary clearance:
Endo or trach tube, Tracheobronchal suction, Drugs, high FiO2 values, Opiates, underlying pulmonary diseases.
Indications for airway clearance therapy for ACUTE conditions?
copious secretions, inability to mobilize secretions, ineffective cough.
Indications for airway clearance for CHRONIC conditions?
CF, Bronchiectasis, ciliary dyskinetic syndromes, COPD patients with retained secretions.
Who could benefit from airway clearance therapy?
Acutely ill patients, CF
Physical findings that determine the need for airway clearance?
Loose, ineffective cough, Labored breathing pattern, Coarse inspir. & expir. crackles, Tachypnea/Tachycardia, Fever
Five ways or approaches to doing airway clearance?
CPT, Cough, Positive Airway pressure, High frequency compression, physical activity or mobilization.
What is Chest Physical Therapy (CPT)?
Use of positioning & gravity; cupped hand striking; mechanical vibrations.
What are some limitations to CPT?
May not tolerate Trendelenburg position (if dyspnea), dependent on appropriate positioning, requires help of caregiver.
How long does caregiver perform CPT?
3 - 5 minutes on each affected area/lobe.
Factors to assess Airway clearance methods? Did it work?
Change in: sputum production, breath sounds, dyspnea level, vital signs, chest radiograph, ABG results, ventilator variables.
What items need to be documented & followed up in airway clearance methods?
Positions used, time in positions, patient tolerance, indicators of effectiveness, any bad effects observed.
What is a directed cough?
Deliberate cough that is taught, supervised, and monitored. Mimic the spontaneous cough.
Who can’t use directed cough?
Obtunded, paralyzed, or uncooperative patients.
What is Forced Expiratory Technique (FET)?
Modification of directed cough - “HUFF cough”; one or two forced expirations of middle to low lung volumes without closure of glottis.
What is FET goal?
To clear secretions with less change in pleural pressure and less bronchial collapse.