Week 9 - Respiratory Assessment Flashcards
(49 cards)
Anatomy of Upper Airway (4)
- Mouth & oropharynx
- Nose & nasopharynx (better filtration)
- Pharynx
- Larynx
Anatomy of Lower Airway (4)
- Trachea
- Carina
- Bronchi
- Terminal Bronchioles (slows down air flow, smaller diameter)
Anatomy of Acinus (4)
- Respiratory Bronchioles
- Alveolar ducts
- Alveolar sacs
- Alveoli
Type I Alveolar cells
responsible for structure
Type II Alveolar cells
responsible for surfactant
Alveolar Macrophages
keepin’ clean
3 Types of Pleura
- Visceral Pleura
- Parietal Pleura
- Pleural Space
Four Major Functions of the Respiratory System
- Supply oxygen to the body
- Remove carbon dioxide
- Maintain homeostasis (acid-base balance)
- Maintain heat exchange
Hypoventilation
increases CO2 in the blood
Hyperventilation
decreases CO2 in the blood
Properties of respiration control (3)
- Normally involuntary
- Mediated by the respiratory center in the brain stem
- Breathing patterns change in response to varying levels of CO2 AND O2 in the blood
Stimulus to Breathe
- Normal stimulus to breathe in most people is an increase in CO2 or hypercapnia
- A decrease in O2 (hypoxemia) also increases respirations, but less effective than hypercapnia
Hypercapnia
increase in CO2 in bloodstream
Hypoxemia
decrease in O2 in bloodstream
Landmarks of the Thoracic Cage (4)
- Sternum
- 12 pairs of ribs
- 12 thoracic vertebrae
- Diaphragm
Landmarks of Anterior chest (7)
- Ribs 2, 4, 5, 6
- Suprasternal notch
- Manubrium of sternum
- Angle of Louis
- Body of sternum
- Xiphoid process
- Costal angle
Landmarks of Posterior chest (6)
- T1
- C7 (vertebra prominens)
- T3
- Inferior angle of scapula
- T10 and T12
- 12th rib
Anterior Reference Lines (3)
- Anterior axillary line
- Midclavicular line
- Midsternal line
Posterior Reference Lines (2)
- Scapular line
2. Vertebral line
Axillary Reference Lines (3)
- Anterior axillary line
- Midaxillary line
- Posterior axillary line
Areas of lung assessment
- Mediastinum (middle of thoracic cage) location of hear
- Right pleural cavity
- Left pleural cavity
- Right lung has 3 lobes, left lung only has 2
- Posterior chest is all lower lobes
- Anterior chest is mostly upper lobes
- Lateral sides we can see all 3 lobes, only place we hear the mid lobe (right side)
Considerations for Infants and Children (3)
- Surfactant not present until 32w gestation
- Smaller size of the respiratory system
○ Nasal passages
○ Diameter of airway
○ Distance between structures - Immune system immaturity
Considerations for Pregnancy (3)
- Decreased space for lung expansion
- Increased circumference of thoracic cage
- Increased O2 demand
Considerations for Aging Adults (4)
- Costal cartilage calcification (stiff)
- Decreased respiratory muscle strength
- Decreased elasticity within the lungs (more rigid, harder to inflate)
- Increase in small airway closure