Respiratory Nursing Flashcards
Identify the potential causes of hypoxaemia or hypoxia:
Insufficient oxygen present
Breathing depression (brain injury, opiods, drugs)
Ventilation insufficiency (pneumothorax)
Diffusion disorder (lung removal, fractured ribs)
Lung circulation disorder
Anaemia
Oedema or arterial thrombus
Muscular-thoracic disorders
What is the difference between hypoxaemia and hypoxia:
Hypoxaemia= low cocentration levels of oxygen in the arterial red blood cells- PaO2
What are the signs and symptoms of hypercapnia?
Symptoms and signs of early hypercapnia include flushed skin, full pulse, tachypnea, dyspnea, extrasystoles, muscle twitches, hand flaps, reduced neural activity, and possibly a raised blood pressure. According to other sources, symptoms of mild hypercapnia might include headache, confusion and lethargy.
Identify the signs and symptoms of respiratory
distress:
Tachypnoea Tachycardia Nasal flaring Use of accessory muscles Intercostal retractions Cyanosis Increasing restlessness Anxiety or decreased LOC
What are the signs and symptoms of hypoxaemia?
- Dyspnoea
- Tachypnoea
- Prolonged expiration
- Decrease SpO2 under 80%
- Cyanosis (late)
- Agitation
- Disorientation
- Delerium
- Confusion
- Use of accessory muscles
- Intercostal muscle retraction
- Tachycardia
- HTN
- Fatigue
- Skin clammy, cool
Definition of hypercapnia?
Co2 retention (>45mmHg) - normal is 35-45mmHg To assess paCO2, arterial blood gases test must be performed
What is type 1 respiratory failure?
Characterised by hypoxia with normal CO2
What is type 2 respiratory failure?
Characterised by hypoxia with hypercapnia
Describe how one would assess respiratory status?
Past health history
- Medications, Surgery +/- other treatment
Health assessment
-Subjective
-Objective (physical)
-Nose, Mouth/Pharynx, Neck, Thorax/lungs
INSPECTION
-Note the shape of the chest, Inspect for deformities and asymmetry, Observe trachea position
PALPATION
For tenderness, For any abnormalities, Tracheal alignment, Palpate spinous processes, costovertebral angles, Check tactile fremitus, Assess chest wall symmetry and expansion
PERCUSSION
Top to bottom & side to side (two fingers), Compare (right to left), Note sounds location & quality (chest consolidation will not resonate, just like percussing bone- it’s ‘solid’), Resonance, Abnormal, hyperesonance/dullness)
AUSCULTATION
For breath sounds top to bottom & side to side (right to left), Compare breath sounds and air entry, Note sound location & quality, Normal V abnormal
Definition of atelectasis?
Collapsed lung
What are some of the causes of hypoxaemia?
Respiratory Disorders: COPD, pneumonia, atelectasis, lung cancer, PE
Cardiovascular Disorders: MI, arrhythmias, angina, cardiogenic shock
CNS Disorders: Overdose, head injury, sleep apnoea
Describe the bronchial breath sounds:
very upper bronchi/chest area, loud sounds expected, expiration should be louder than inspiration
Loud, high pitched sounds
Expiration > Inspiration
Heard over manubrium
Describe the broncho vesicular breath sounds:
Medium pitch & intensity of sounds
Inspiration = Expiration
Heard anteriorly over bronchus &
posteriorly between scapula
Describe the vesicular breath sounds:
have to lift a womens breasts up for this one
Soft, low pitched, gently sounds
Inspiration > Expiration
Heard over all lung except major
bronchi
Describe the abnormal crackle breath sounds:
Short, discrete, crackling or bubbling sounds
e.g. pneumonia, bronchitis, CHF