213 Flashcards
(78 cards)
What is ventilation?
Active breathing. Inspiration and expiration.
What is hyperventilation and what can it cause?
Breathing off CO2 and respiratory alkalosis.
What is hypoventilation and what can it cause?
Retain CO2 and respiratory acidosis.
What is hypoxemic respiratory failure?
Low O2 leading to low blood O2 levels.
What is hypercapnic respiratory failure?
Lungs can’t remove CO2 causing high CO2 levels in blood, causing an increase in rate and depth of respirations.
What should you look for in hypercapnic patients and how should they be treated?
Mental status change and give them a BIPAP.
High CO2 is a PaCO2 above?
45.
What is gas exchange? How does it affect your patient?
CO2 out and O2 in. Exchange of gas between alveolar air and blood.
Hypoxemia is an PaO2 of?
Less than 80 as normal range is 80-100.
What are early signs of hypoxemia?
AMS- restlessness, agitation, confusion. High vitals- tachypnea, tachycardia, hypertension.
Why might vitals be high early on with hypoxemia?
The body is desperately trying to push the little amounts of oxygen it does have around.
What are the late vital signs of hypoxemia?
Low vital signs like bradypnea, bradycardia, hypotension, cyanosis, dysrhythmias.
What are the expected ABG numbers of a COPD patient?
Low PaO2 which correlates to hypoxemia - low O2. High PaCO2 over 45 (acidosis) that correlates to hypercapnia - too much CO2. pH less than 7.35 acidosis.
Is anemia common in COPD patients? And how does the RBCs cause risk to the patient?
No as RBC are actually increased due to hypoxia and they are also thicker blood causing risk of CVA or stroke.
What is COPD?
Irreversible damage to the alveoli and bronchi of the lungs that causes decreased gas exchange.
How does decreased gas exchange in COPD patients affect the lungs?
The double C’s- Chronic air trapping causing decreased gas exchange and decreased inflammatory damage. CO2 high which limits airflow and prevents exhalation.
What are some possible causes of COPD?
Smoking and car mechanics, Alpha antitrypsin deficiency - genetic disorder affecting protein used to protect the lungs.
How does smoking affect the lungs in COPD patients?
It damages the alveoli and ciliary action.
What are some parts or subsections of COPD?
Chronic bronchitis, emphysema, hyperactivity airway disease.
What does emphysema cause?
PINK- pursed lips and pink skin, increased chest (barrel chest), no chronic cough, tripoding.
What is emphysema?
Loses lung elasticity and inflation due to loss of surfactant which helps the lungs stretch.
Advanced emphysema can cause?
Frequent infections and risk of pneumothorax.
Chronic Bronchitis Signs and symptoms?
BLUE- Bluish skin (cyanosis), long term (chronic) cough/sputum, unusual lung sounds (crackles and wheezes), edema peripherally (due to cor pulmonale). Last 3 months more, productive cough and mucous, more severe in the morning.
What is cor pulmonale?
Caused from COPD. Patient experiences right-sided heart failure and body is rocked with fluids which can increase pressure in the lungs due to pulmonary hypertension.