Week #8 oxygenation Flashcards

1
Q

What are the 6 steps of RBC production

A

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

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2
Q

What 3 nutrients are important for RBC production

A

Iron Vit B12 Folic acid

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3
Q

What is known as the respiratory center in the brain

A

Pons and medulla oblongata

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4
Q

What NS does the hypothalamus control

A

The ANS

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5
Q

Do peripheral chemoreceptors detect O2 or co2

A

they detect O2 levels

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6
Q

Do central chemoreceptors detect o2 or co2

A

they detect co2

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7
Q

Where is the central chemoreceptor located

A

in the medulla oblongata

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8
Q

Where is the peripheral chemoreceptor located

A

in carotid and aortic arch

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9
Q

What is Eupnea

A

Normal breathing

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10
Q

What is ventilation of the Resp system

A

The process of moving gas in and out of the lungs

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11
Q

What is diffusion

A

The ability to pass O2 into the blood and pass CO2 from the blood into the alveoli

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12
Q

What is perfusion

A

the process of blood transferring oxygen to the body’s tissues that is powered by the pressure of the heart

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13
Q

What is a pulmonary embolism

A

When a blood clot becomes stuck in an artery of the lung blocking blood flow to that part of the lung

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14
Q

What is pulmonary edema

A

When there is to much fluid in the lungs cutting down on the lungs ability to diffuse oxygen and co2

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15
Q

What is pulmonary edema usually caused by

A

congestive heart failure

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16
Q

What is hypercapnia

A

High arterial carbon dioxide

17
Q

What is the difference between Tachypnea and hyperventilation

A

Tachypnea is fast shallow breathing
Hyperventilation is Fast but deep breathing

18
Q

Factors that are increased in older adults that makes oxygenation harder

A

Larger chest diameter
Increased chest wall rigidity
increased airway resistance
risk for respiratory infections

19
Q

What factors decrease in older adults that makes oxygenation more difficult

A

Decreased cough reflex
Decreased cilia action
Decreased efficiency of alveoli

20
Q

What is asthma

A

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

21
Q

What is an asthma exacerbation

A

another term for asthma attack

22
Q

What is the main cause of COPD

A

Smoking 80-90% of cases are caused by smoking

23
Q

What are two very common COPD

A

Emphysema and Bronchitis

24
Q

What is chronic bronchitis

A

inflammation of the bronchial tubes which causes excessive mucus production and decreased airflow

25
Q

What is emphysema

A

When the alveoli are damaged and rupture creating large spaces instead of many small ones which reduces surface area and efficiency of diffusion

26
Q

What is Cor Pulmonale

A

Right sided heart failure

27
Q

What is the difference between hypoxemia and hypoxia

A

Hypoxemia is low O2 levels in the blood
Hypoxia is low O2 levels in the tissues

28
Q

What would crackles indicate in the lungs

A

Fluid in the lungs

29
Q

what would wheezes indicate in the lungs

A

Narrowed airways

30
Q

What is pneumothorax

A

Collapsed lung and occurs when air leaks into the space between your lungs and chest wall

31
Q

What are some common treatments for both asthma and COPD

A

Lifestyle modifications
Vaccines
Dyspnea strategies (Breathing exercises)

32
Q

What percent of oxygen do low flow devices deliver

A

between 22-44% oxygen

33
Q

what is the percentage of oxygen in normal air

A

21%

34
Q

what is usually the SpO2 goal for people with COPD

A

88-92%

35
Q

what’s the difference between and asthma controller and asthma reliever

A

Controller is part of long term treatment that controls the underlying inflammation so you are less likely to experience symptoms in the first place
Reliever is a fast acting bronchodilator that relaxes the muscles that have tightened around the bronchi

36
Q

Is a corticosteroid a controller or reliever for asthma and what does it do

A

typically a controller and they reduce inflammation in the airways

37
Q

What do mucolytics do

A

they make mucus thinner so that it is more easily cleared from the lungs or airways