Airway Clearance, Postural Drainage, Assisted Cough, & Breathing Techniques Flashcards
(40 cards)
Describe the grading for the 7 point dyspnea scale
- 1 = no trouble at all
- 2 = a tiny bit
- 3 = a little
- 4 = some
- 5 = quite a bit
- 6 = a lot
- 7 = very much trouble
Being _____________ and ___________ is the physiological body position
- Upright and moving
When body positions that are initially beneficial to the patient are assumed for too long, they eventually compromise _____________________ and offset any benefit
- Oxygen transport
How often should turning be performed
- Every 2 hrs
Effects of recumbent supine position
- Deleterious to oxygen transport
- Predispose the pt to airway closure & increased work of breathing
- May stimulate diuresis & lead to orthostatic intolerance due to fluid loss
Effects of side-lying position
- Arterial blood gases improve in pts with unilateral lung disease w/good lung down
Effects of prone position
- May reduce work of breathing
- Better ventilation of the dorsal lung regions
- Improvement in ventilation/perfusion matching
Where are you trying to move the secretions toward when performing postural drainage techniques
- Toward the Angle of Louis
Preparation for postural drainage
- Use electric beds to position more easily
- Be familiar with all lines 7 tubes, allow slack
- Have help as needed
- Use foam wedges or pillows for positioning
- Nebulized bronchodilators or mucolytics before postural drainage
- Specimen cup for sputum after cough
Treatment with postural drainage
- Maintain position for 5-10 min or longer if tolerated
- Most affected lobes should be addressed first
- Take deep breathes & cough after each position & following treatment
- Mobilization of secretions could occur up to 1hr later
Contraindications for postural drainage
- Intracranial pressure (ICP) >20mm Hg
- Head and neck injury until stabilized
- Active hemorrhage with hemodynamic instability
- Recent spinal surgery (e.g., laminectomy) or acute spinal injury
- Active hemoptysis
- Empyema
- Bronchopleural fistula
- Pulmonary edema associated with heart failure (HF)
- Large pleural effusions
- Pulmonary embolism
- Older, confused, or anxious patients
- Rib fracture, with or without flail chest
- Surgical wound or healing tissue
Contraindications for Trendelenburg position
- Patients in whom increased ICP is to be avoided
- Uncontrolled HTN
- Distended abdomen
- Esophageal surgery
- Recent gross hemoptysis related to recent lung carcinoma
- Uncontrolled airway at risk for aspiration
Describe airway percussion technique
- Rhythmical force applied with cupped hands against thorax over involved lung segments
- Performed during both inspiratory & expiratory phases of breathing
- Handheld mechanical pressures can also be used
Treatment with percussion
- Position the hand in the shape of a cup with fingers and thumb adducted
- Keep wrists neutral
- Hollow sound should be heard
- Even steady rhythm between 100 and 480 beats per minute
- Equal force and pressure—slow rate of dominant hand to match non-dominant
- Do not percuss over bony prominences
- Do not perform over breast tissue
- One handed self percussion can be taught for areas that are reached comfortably
Advantages & disadvantages of percussion
- May enhance secretion clearance and shorten the treatment
- Not well tolerated postoperatively
- Contraindicated in those with osteoporosis or coagulopathy
- Extended periods of time and on an ongoing basis can result in injury to the caregiver
- Minimal price for mechanical device
Describe vibration & shaking
- Performed only during the expiratory phase of breathing
- Start with peak inspiration & continue until the end of expiration
- The compressive forces follow the movement of the chest wall
- Both techniques require the assistance of a caregiver, but a mechanical vibrator may be used in place of manual vibration
What is the mechanism of action for vibration & shaking
- Enhance mucociliary transport from the periphery of the lung fields to the central airways, also increased chest wall displacement and stretch of the respiratory muscles
Describe vibration technique
- Gentle, high frequency force
- Delivered through sustained co-contraction of caregiver’s UEs
- Hands must be placed side by side or on top of each other
- Frequency of manual vibration is b/w 12-20 Hz
Describe shaking technique
- Moer vigorous in nature
- Described as a bouncing maneuver
- At peak inspiration apply a slow rhythmic bouncing pressure to the chest wall until the end of expiration
- Hands follow the movement of the chest as the air is exhaled
- Frequency of shaking is 2 Hz
Advantages and disadvantages of vibration and shaking techniques
- Enhances mobilization of secretions with postural drainage
- Patient cannot apply these techniques without assistance
Considerations with vibration and shaking techniques
- Mechanically ventilated: coordinate with ventilator-controlled exhalation
- Rapid respiratory rate: apply vibration or shaking only during every other exhalation
- Limited chest wall compliance: vibration will probably be better tolerated than shaking
- Mechanical vibrators may be used by the unattended pt, although only limited attention can be paid to the posterior portions of the lungs
Relative contraindications for vibration and shaking techniques
- Hemoptysis
- Untreated tension pneumothorax
- Platelet count below 20,000 per mm3
- Unstable hemodynamic status
- Open wounds, burns in the thoracic area
- Pulmonary embolism
- Subcutaneous emphysema
- Recent skin grafts or flaps on thorax
What are the 4 stages of a cough
- Inspiration (irritation)
- Glottal closure (inspiration)
- Increased intrathoracic & intra-abdominal pressure (compression)
- Glottal opening & expulsion
Describe huffing
- Alternative to coughing
- Deep inspiration followed by a forced expiration without glottal closure
- Often used in post-operative pts who find coughing to be too painful