Oxygenation Flashcards
Cardiopulmonary physiology
Provides oxygen to tissues and removes Co2 and waste products from the body
Oxygenation
Process by which oxygen is transported to the cells and carbon dioxide is transported from the cells
Ventilation
Movement of air in and out of the lungs
Diffusion
Movement of gases between air spaces and the bloodstream
Respiration
Exchange of oxygen and carbon dioxide during cellular metabolism
Movement of blood into and out of the lungs to the organs and tissues of the body and supported by the heart Ventilation Diffusion Respiration Perfusion
Perfusion
Need to get oxygen across
Alveolar membrane
Need to get oxygen into
Rbcs
Need to get oxygen into
Body cells
Inadequate tissue oxygenation with a deficiency in oxygen delivery at cellular level
Hypoxia
Hypoxemia
Hypoxia
Hypoxemia
Abnormal deficiency in concentration of oxygen in arterial blood. Low partial pressure of oxygen
Ventilation which is inadequate to meet demands of the body and results in hypercapnea. Respiratory acidosis
Hypo ventilation
Increase in respiratory rate which results in excess co2 elimination. Respiratory alkalosis
Hyperventilation
Clinical signs of hypoxemia
Dyspnea Tachypnea Restlessness motor function Anxiety mental status change Hyper or hypotension Pallor or cyanosis Blurred or tunnel vision Nausea and vomiting
The angle of Louis is at the junction between
The Manubrium and the body of the sternum
The Lower lobes project
Laterally and anteriorly
Posteriorly the tip or inferior margin of the scapula lies approximately at the level of the
Eighth
Seventh
Ninth
Seventh rib
Breathlessness
Dyspnea
Risk factors for HIV or TB
Persistent cough, hemoptysis, unexplained weight loss, fatigue, anorexia, night sweats and fever.
Normal chest contour
Ap diameter 1/3to 1/2 of the size of the transverse or side to side diameter
Barrel shaped chest characterizes
Chronic lung dx
Patients with breathing problems may do this
Lean over a table or splint the side of the chest
When breathing bulging or retraction indicates
Patient using great effort to breathe
Normal resp rate
12 to 20
Bronchi vesicular and vesicular sounds are normally heard over
Anterior
Posterior
Posterior thorax
Medium pitched blowing sounds normally heard
Between the scapulae
Where are vesicular sounds normally heard over
Periphery of the lungs
Vesicular sounds are
Soft
Breezy
Low pitched
And insp phase is three times longer than exp phase
Stress
Hyperventilation
Anxiety
Bronchospasm
Four things you do during physical assessment
Inspection
Palpation
Percussion
Auscultation
Inspection
Shape and symmetry Trachea Color Resp rate Sputum Distress Fingernail clubbing
Palpating
Bulges Tenderness Abnormal movements Temp Tactile fremitus 99 Presence or absence of crepitation
Percussion
Compare one side with other
Resonant
Lungs
Hyperressonant
Emphysematous lungs
Flat
Bone
Dull
Organs
Consolidation
Tympanic
Stomach
Heard over large airways
Caused by spasm
Mucous secretions
Wheezes
Crackles
Rhonchi
Pleural friction rub
Rhonchi
Heard over lung fields Cause is increase in interstitial lung water or deflated alveoli High pitched Static like Discontinuous
Rhonchi
Pleural friction rub
Crackles
Wheezes
Crackles (rales)
Heard over lung fields and airways
Caused by narrow airways
Pleural friction rub
Wheezes
Rhonchi
Wheezes
Dry grating due to inflammation
Wheezes
Rhonchi
Pleural friction rub
Pleural friction rub
Peak flow meter
Estimate volume of air that can be forcibly exhaled
Measures oxygen saturation of arterial blood
Pulse ox
Abnormal pulse ox
90
85
80
Below 85
Procedure of entering pleural cavity and aspirating fluid usually done at bedside
Thoracentesis
Used to diagnose and treat airway and lung disorders
Bronchoscopy
Nursing diagnosis
Impaired gas exchange related to pulmonary infection
Dyspnea
Sp02 82 percent
Rr 36 breaths
Coarse lung sounds
Interventions
02 at 1 liter min to maintain sp02 greater than 92 percent
High fowler position
Monitor lung sounds
Monitor results of chest X-ray
Nursing diagnosis
Fatigue related to decreased oxygen
Sp02 82%
Decrease in activity level
Inability to perform ADL’s
Interventions
Alternate rest and activity periods
Limit enviromental stimuli to promote relaxation
Monitor nutritional intake to include high nutrient intake
Nursing diagnosis
Acute pain related to frequent cough
Complaints of chest pain
Pulse rate of 120 beats per min
Patients hold chest when coughing
Intervention
Administer analgesics
Explore factors that improve or worsen pain
Teach pain management
Teach effective coughing techniques
Nursing diagnosis
Ineffective airway clearance related to pulmonary secretions
Temp 102
Thick yellow sputum
Dyspnea
Intervention
Cough and deep breathe every two hours
Increase fluids to 2800 ml for 24 hours
Administer antipyretic
Administer analgesics as needed before coughing
Is suctioning a sterile procedure
How long should procedure last
How long in between
Yes
10 to 15 seconds
20 to 30 seconds
Right lung is made up of how many lungs
3
Essential for normal lung function. Without adequate amts, the alveoli would collapse on expiration leading to impaired gas exchange
Surfactant
Successful ventilation depends on
Neuro and chemo receptors
Tissues most sensitive to hypoxia are the
Brain
Heart
Pulmonary vessels
Liver
Signs and symptoms of hypoxia include
Tachycardia
Peripheral vasoconstriction
Dizziness
Mental confusion
Causes of hypoxia
Anemia Monoxide poisoning High altitudes Airway obstruction Septic shock Cyanide poisoning COPD impaired ventilation from rib fractures, chest trauma, spinal cord injury Left shifted oxyhemoglobin dissociation curve
Causes of hypoxemia
Decreased diffusion as in pneumonia and atelectasis Decreased alveolar oxygen tension Cardiac arrhythmia Ventricular fibrillation A Systole
Treatment of hypoxemia
Oxygen
Correction of underlying cause
Treatment of hypoxia
Cardiac and resp stimulant drugs
Oxygen
Mechanical ventilation
Frequent analysis of blood gases
As ventilation decreases, what increases
Pac02
Signs and symptoms of hypoventillation
Dizziness Occipital headache on awakening Lethargy Disorientation Decreased ability to follow instructions Cardiac dysrhythmias Electrolyte embalance Convulsions Possible coma Cardiac arrest
Chronically elevated pac02 and copd
Inappropriate administration of excessive oxygen may result in hypo ventilation
Hypercapnea
High carbon dioxide
Patients with COPD and hypercapnea adapt better to higher or lower carbon dioxide level
Higher
24 to 28%
Treatment for hypo ventilation
Treating underlined cause
Improving tissue oxygenation
Restoring ventilation
Achieving acid-base balance
Causes of hyperventilation
Severe anxiety Infection Head injury Meds Acid based imbalance
Hyperventilation signs and symptoms
Tachycardia SNOB chest pain Dizziness Lightheadedness Decreased concentration Paresthesia Extremity numbness Tinnitus Blurred vision Tetany
Treatment for hyperventilation
Treating underlined cause Improving tissue oxygenation Restoring ventilation Reducing resp rate Achieving acid base balance
Early clinical signs and symptoms of hypoxemia
Anxiety Change in level of consciousness Restlessness Increased hr Increases rr and bp Cardiac dysrhythmias such as PAC's, PVC's, and sinus tachycardia
Pulmonary patients are at risk for
Hypoxemia and hypercapnea
Cervical trauma at c3 to c5 results in
Paralysis of phrenic nerve
Cardiac pain radiates into where in males
Left arm and jaw
Cardiac pain in women symptoms
Epi gastric pain Complaints of indigestion Nav Choking feeling Dyspnea
Is pericardial pain radiating or no radiating
Nonradiating and occurs with inspiration or when leaning forward
Pleuritic chest pain is
Peripheral
Usually radiates to scapular area
Knifelike
Muskoskelatal pain is often confused with what kind of chest pain
Pleuritic chest pain
Orthpnea
Difficulty breathing when lying and uses mult pillows
Hemoptysis
Bloody sputum
What herb should cv patients not take
Ma hung
Patients with asthma should not take
Ephedrine containing products such as bronchodilators because they cause increased bronchospasm and resp arrest
Is the mouth considered clean or dirty
Clean thus oral and nasopharyngeal suctioning requires only clean technique
Most effective position for CP dx is in the
90 degree fowler
45 degree semi fowler
45 degree semi fowler position
How do you position a patient with unilateral lung dx such as pneumothorax or atelectasis
Healthy lung up or down
Down
Pneumothorax
Collection or air or gas in the pleural space
Accumulation of air in the pleural space usually as a result of trauma
Hemothorax
What is the usual CPAP setting
5 to 20 cm
Affects person oxygenation by binding strongly with hemoglobin preventing the formation of oxyhemoglobin
Carbon monoxide
Low concentration carbon monoxide causes
Nausea
Dizziness
Headache
Fatigue
High concentration carbon monoxide causes
Are fatal
Persons comfort zone is between
40 to 90 C
18 to 23
18 to 23 or 65 and 75 F
High pitched continuous musical sounds bilateral over lung fields
Wheezes
Fine bubbling sounds heard on auscultation
Crackles
Clinical findings indicate central cyanosis
Bluish discoloration of lips and mouth and conjunctivae
Heart dx
Clinical signs of peripheral cyanosis
Blue lips, earlobes, and nail beds
Indicates peripheral vasoconstriction
Bulging of of the tissues of nail base
Clubbing
Primary reason for giving morphine for patient experiencing MI
Decreased oxygen demand on heart
Mental status changes, agitation, and falls early signs of
Worsening cardiac status
Resistance of ejection of blood from the left ventricle
Afterload
Increased risk of developing ventilator associated pneumonia
Pooling of secretions in the oropharynx
Associated with VAP
Fever
Progressive infiltrates on chest X-ray 3 days after on mechanical vent
VAP is associated with colonization of the
Resp and digestive systems
Accumulation of blood and fluid in the pleural cavity between the
Parietal and visceral pleurae
Hemothorax
Shortness of breath or difficulty in breathing caused by certain heart or lung conditions or strenuous exercise
Dyspnea
A collapse of alveoli preventing the normal respiratory exchange of oxygen and carbon dioxide
Atelectasis
What do bibasilar crackles and diminished breath sounds indicate
Fluid from heart failure or bilateral pneumonia
In assessing breath sounds, where should the nurse listen first
Lung bases
Lung Apices
Lung Apices
The nurse auscultation vesicular breath sounds in the periphery lung field. Is this a normal finding
Yes
Tenacious means Odor Color Frequency Consistency
Consistency
After determining the priority nursing diagnoses, what step should the nurse take next in developing the plan of care
Establish goals and outcomes
What is an early sign of hypoxia
Restlessness
When applying a nasal cannula it is most important for the nurse to provide which instructions
Remind client and family that oxygen is combustible and must be kept 10 feet away from open flames
What is the best technique for the nurse to assess respirations accurately
Place a hand on chest and count the hand motion
Early signs of hypoxemia include
Anxiety
Change in level of consciousness
Restlessness
Are patients with pulmonary diseases at greater risk for
Hypoxemia or hypoxia
Hypoxemia
What are examples of NS diseases that result in hypoventillation
Myasthenia gravis
Gillian Barre dx
Poliomyelitis