Oxygenation 50 Flashcards
Intrapleural pressure
Pressure surrounding lungs. Always slightly negative
Intrapulmonary pressure
Within the lungs
Always equalized with atmospheric pressure
Tidal volume
Normal volume
500 mL
Lung compliance
Stretch ability of lung tissue
Atelectasis
Collapse portion of the lung
Lung recoil
Tendency for the lungs to collapse away from chest wall
Surfactant
Lipoprotein reduces surface tension of ale oar fluid
Diffusion
Movement of gases from higher to lower concentration.
Partial pressure
Pressure excreted by each individual gas in a mixture
mmHg
Torr
Or
mm of mercury
Hemoglobin
Oxygen carrying red pigment
Hematocrit
Percentage of the blood that is erythrocytes
Eupnea
Normal, quiet
Hypercapnia
Increased carbon dioxide
Kussmauls breathing
Hyperventilating that accompanies metabolic acidosis
Cheyne stokes
Waxing and waning. Dying
Biots (cluster) respiration a
Shallow breaths interrupted by apnea
CNS disorders
Expectorate
Spit out
Postural drainage
Drainage by gravity of secretions of lung
Mucus clearance device
Used for those with cystic fibrosis, COPD, bronchiectasis
Pneumothorax
Air collects in pleural space
Hemothorax
Accumulation of blood in pleural space
Pleural effusion
Excessive fluid in the pleural space
Respiratory membrane
Alveolar/capillary membrane. Gas exchange occurs between alveolar and blood
Hemoglobin
Binds and releases O2
PaO2
Dissolved O2 in plasma
Normal 80-100 mm Hg
SaO2
Oxygen bound to hemoglobin
Normal above 92%
Effect blood capacity
PaO2-amount person can get in
Amount of hemoglobin
How well hemoglobin binds to O2
Systemic diffusion
High to low
Cellular respiration
Internal respiration
Restrictive pulmonary disease
Impaired ability of chest wall or lungs during inspiration
Rails
Diffusion defects
Impaired blood flow
Reduction in contact time with blood
Pulmonary edema
Accumulation of fluid in alveoli
Heart is not pumping well
Ventilation perfusion mismatching
Blood cannot move past clot in lungs (breathe ok)
Back up of blood in lungs
Death past clot
Atherosclerosis
MYocardial infarction
Cerebral vascular disease
Problem with systemic circulation
CHF
Damage valvular disorders
Hypertensive heart disease
Vein distension
COPD assessment
Vitals down
Clubbing of fingernails
Edema in lower extremities
S3 and S4 sounds
Barrel chest
Built up accessory muscles
1:2 ratio is normal
Perfusion assessment
Bowel sounds
Decreased urine output
(Blood flow to kidneys)
Hypoxia (anywhere)
Hypo ventilation
Build up of CO2
Kussmauls
Blow off CO2
Diabetic
Cheyne stokes
Waxing, waning
Dying
Biots
Shallow with apnea
CNS
Obstructed airway
Sputum
Strider
Retractions
Adventitious breath sounds
Adventitious breathe sounds
Crackers (rails)
Wheezes
Gurgles (rhonchi)
Thoracentesis
Puncture chest space
Drain fluid/pus/blood
Instant relief
Interventions to promote airway clearance
Coughing, deep breathing
Drainage
Hydration
Breathing pattern interventions
Positions
Pursed lip breathing
Incentive spirometery
Chest tube
Interventions improve cardiac output and tissue perfusion
Restrict sodium Diuretic I&O Daily weight Ambulatory Positioning