Week #8 oxygenation Flashcards
What are the 6 steps of RBC production
Kidneys sense Hypoxia
Kidneys release EPO
Bone marrow produces RBC (Erythropoiesis)
RBC circulate for 120 days
Old ones are broken down by the liver
Turned into bile and excreted by the intestines
What 3 nutrients are important for RBC production
Iron Vit B12 Folic acid
What is known as the respiratory center in the brain
Pons and medulla oblongata
What NS does the hypothalamus control
The ANS
Do peripheral chemoreceptors detect O2 or co2
they detect O2 levels
Do central chemoreceptors detect o2 or co2
they detect co2
Where is the central chemoreceptor located
in the medulla oblongata
Where is the peripheral chemoreceptor located
in carotid and aortic arch
What is Eupnea
Normal breathing
What is ventilation of the Resp system
The process of moving gas in and out of the lungs
What is diffusion
The ability to pass O2 into the blood and pass CO2 from the blood into the alveoli
What is perfusion
the process of blood transferring oxygen to the body’s tissues that is powered by the pressure of the heart
What is a pulmonary embolism
When a blood clot becomes stuck in an artery of the lung blocking blood flow to that part of the lung
What is pulmonary edema
When there is to much fluid in the lungs cutting down on the lungs ability to diffuse oxygen and co2
What is pulmonary edema usually caused by
congestive heart failure
What is hypercapnia
High arterial carbon dioxide
What is the difference between Tachypnea and hyperventilation
Tachypnea is fast shallow breathing
Hyperventilation is Fast but deep breathing
Factors that are increased in older adults that makes oxygenation harder
Larger chest diameter
Increased chest wall rigidity
increased airway resistance
risk for respiratory infections
What factors decrease in older adults that makes oxygenation more difficult
Decreased cough reflex
Decreased cilia action
Decreased efficiency of alveoli
What is asthma
Chronic inflammatory disease of the airways caused by the muscles around the airways being tight that causes narrowing of the bronchial tubes and increased mucus which leads to limited airflow
What is an asthma exacerbation
another term for asthma attack
What is the main cause of COPD
Smoking 80-90% of cases are caused by smoking
What are two very common COPD
Emphysema and Bronchitis
What is chronic bronchitis
inflammation of the bronchial tubes which causes excessive mucus production and decreased airflow
