Week 8 Oxygenation Part 1 Flashcards
explain lung compliance
ease of lung inflation
ability of the chest wall to be able to move
Explain external and internal respirations
External:
- alveolar-capillary gas exchange
- conditions that slow diffusion include: pleural effusion, pneumothorax, asthma
- hypoxemia
Internal:
- capillary-tissue gas exchange
- requires adequate external respirations and adequate peripheral circulation
- hypoxia (problem with tissues)
- transition from lungs to organs
Explain the factors that influence pulmonary function
- life span and development (respiratory distress syndrome, upper respiratory infection, adolescent smoking, cardiac insufficiency)
- environment (stress, allergies)
- lifestyle (nutrition, exercise, substance abuse
- smoking
- medications (diuretics which pull fluid off to help with breathing)
What are the factors to consider when thinking about pulmonary function in the older adult
- reduced lung expansion and less alveolar inflation (costal cartilage calcify, lungs have less recoil ability, alveoli lose elasticity)
- difficulty expelling mucous or foreign materials
- diminished ability ventilate with increased demand (diaphragm strength decrease, vital capacity reduced)
- declining immune response
- gastroesophageal reflux more common
- chemoreceptors response slows
- they lose their ability to take deep breaths so they begin air trapping the CO2
What are the upper respiratory infections that influence pulmonary function
- cold (no fever, no body aches)
- rhinosinusitis (adults)
- pharyngitis (sore throat)
- influenza (fever, body aches)
what are the lower respiratory infections that influence pulmonary function
- respiratory syncytial virus (RSV)
- acute bronchitis
- tuberculosis
- bronchiolitis (children)
What are the other pulmonary conditions that influence pulmonary function
- pulmonary system abnormalities (pneumos)
- pulmonary circulation abnormalities (p.e.)
- central nervous system abnormalities (stroke pt w/ head trauma)
- neuromuscular abnormalities (MS, Lou Gehrig’s)
Name and explain the different breathing patterns
- eupnea: normal breathing
- tachypnea: over 24 breaths
- bradypnea: slower than 12 breaths
- Kussmaul’s: rapid; causes acidosis; diabetic ketoacidosis
- Biot’s: rapid breathing
- Cheyne-stokes: rapid with periods of apnea
- Apnea: no breaths over a 20 second period
Name and explain the different sputum color
- white or clear: viral infections (normal cold)
- yellow or green: neutrophil response (inflammatory response but not indicative of being infectious)
- black: coal dust, smoke or soot inhalation
- rust colored: pneumococcal pneumonia, tuberculosis
- hemoptysis: blood or bloody sputum (frank blood, not old blood)
- pink and frothy: pulmonary edema
- foul smelling sputum: bacterial infection
What are the ways to assess oxygenation status
- diagnostic testing (sputum samples, skin testing)
- pulse ox
- capnography (CO2)
- spirometry (component of pulmonary function testing, computer analyzes how well they are able to move air with forced expiration
- ABG
- peak flow monitoring
What are the factors that impact oximetry accuracy
- client movement (ear probe, nasal sensor)
- acrylic nails/nail polish
- dirt and skin oils
- poor perfusion (position, cool extremities and disease process)
- lighting (cover the probe with blanket to help)
- anemia, carbon dioxide (they don’t have hemoglobin to carry the oxygen)
- equipment function (bring in another machine)
- rely on clinical judgement/assessment (most important)
What are the non-invasive interventions for optimal oxygenation
- positioning: maximum lung excursion
- mobilizing secretions: deep breathing and coughing, hydration, chest physiotherapy
- therapeutic self
- incentive spirometry
- intermittent positive pressure breathing
- acapella vibratory PEP therapy device
What are the therapeutic responses to hypoxemia
- use a calm and confident approach
- provide emotional support and comfort
- sit down and make eye contact
- keep the patient informed of what you are doing
- hold the person’s hand
- practice therapeutic touch
What are the artificial airways used for optimal oxygenation
- oropharyngeal
- nasopharyngeal
- endotracheal tubes
- tracheostomy tubes
- artificial airway patency (pharyngeal suctioning and deep tracheal suctioning)
Explain the supplemental oxygen used for optimal oxygenation
- oxygen therapy (cannula, mask, transtracheal catheter)
- use of high flow oxygen
- use of a mechanical ventilator
- use of chest tube drainage systems