H&P Thorax/Lungs Flashcards
Trachea Bifurcation
- Sternal Angle
- T4 posteriorly
Visceral Pleura
Covers outer surface of lungs
Parietal Pleura
Lines inner rib cage and upper surface of diaphragm
Pleura Space
Space between visceral and parietal pleura
Primary Muscles of Respiration
Diaphragm and intercostal muscles
Accessory Muscles of Respiration
Sternocleidomastoid and Trapezius
Stridor
- High pitched wheeze
- Largely Inspiratory
- Results from turbulent airflow in upper airway
- Indicates laryngeal/upper airway obstruction
- ->epiglottitis, foreign body aspiration
Clubbing of fingers
-Linked to heart or lung condition (COPD)
Pursed lip breathing
- Possible sign of COPD
- Reduces respiratory rate from 20–>12/15
- Increases Tidal Volume
- Decrease PaCO2, Increases Pa02
Crackles (rales)
- Caused by “popping open” of small airways and alveoli that have collapsed
- ->fluid in the lung (e.g pneumonia, CHF)
- High pitched, discontinuous sounds
Rhonchi
- Snoring, coarse quality
- Caused by airway secretions and narrowing/partial obstruction (e.g. bronchitis, COPD)
- Low-pitched, continuous
Wheeze
- High pitched, continuous
- Whistle
- Caused by airways obstruction (e.g. asthma)
- Bronchus
Apnea
- Absence of breathing
- Cause: Cardiac arrest
Biot’s
- irregular breathing with long periods of apnea
- Causes: increased ICP, drug induced respiratory depression, brain damage
Cheyne-Stokes
- Irregular breathing with intermittent periods of increased and decreased rates and depths of breaths alternating with periods of apnea
- Causes: Drug induced respiratory depression, CHF, brain damage
Kussmaul’s
- Fast and deep breathing
- Causes: metabolic acidosis
Pectus carinatum
Protrusion of sternum and ribs
Pectus excavatum
Caved-in or sunken chest
Atelectasis
- Loss of air from lung or collapse of lung tissue with reduced lung volume
- Can result from blockage of air passage with mucus or from pleural effusion
Tension Pneumothorax
Large amount of air entering the chest when a one-way valve (air in) is formed by an area of damaged tissue
Pneumonia
- Refers to pneumonitis (inflammation of the lung)
- Lower respiratory infection
- Usually due to infection, but sometimes has noninfectious cause
- Has additional feature of pulmonary infiltrates/consolidation
Consolidation
- Condition in which lung tissue becomes firm and solid rather elastic and air-filled
- Due to accumulated fluids and tissue debris
Lung/pulmonary infiltrates
- Filling of the air spaces with fluid
- Infiltrates can cause consolidation
Pleural effusion
Collection of fluid in the pleural space (space between visceral and parietal pleura)