5A: OLD

Question 1

What is the effect of air quality on OTS?

Answer 1

Poor air quality will increase issues due to lower oxygen inspiration

Question 2

What % of air is oxygen?

Answer 2

21%

Question 3

How does the airway affect OTS?

Answer 3

If the airway is open or has any blockages it can impact gas diffusion

Question 4

What effect do the lungs and chest wall have on OTS?

Answer 4

Compliance properties

Question 5

What is diffusion?

Answer 5

Movement of gas from airway to capillary and back

Question 6

What is the definition of perfusion?

Answer 6

Distribution of blood

Question 7

How does myocardial function affect OTS?

Answer 7

CO to generate good flow and pressure

Question 8

What % of oxygen do tissues extract from the blood at rest?

Answer 8

23%

Question 9

What is the formula for oxygen delivery (DO2)?

Answer 9

Arterial oxygen content X CO

Question 10

What is oxygen consumption (VO2)?

Answer 10

Amount of oxygen needed at the cell for anaerobic metabolism

Question 11

What is the formula for VO2?

Answer 11

(Arterial - venous oxygen content) X CO

Question 12

What is the oxygen extraction ratio (OER)?

Answer 12

How much oxygen is really being used

Question 13

What is the OER equation?

Answer 13

VO2/DO2

Question 14

What is dissociation in relation to the oxygen dissociation curve?

Answer 14

Releasing of oxygen from hemoglobin

Question 15

At what pressure does O2 rapidly drop off hemoglobin?

Answer 15

< 50 mmHg

Question 16

How much of transported O2 is dissociated from 100-60 mmHg?

Answer 16

10%

Question 17

What three things increase the rate of dissociation?

Answer 17

1. Increased temperature
2. High concentrations of CO2
3. Low pH

Question 18

What four things will cause the Oxygen Dissociation Curve to shift to the right?

Answer 18

1. Increase H+
2. Increased CO2
3. Increased temp
4. Increased BP

Question 19

What is hypoxemia and the value?

Answer 19

Decreased oxygen in the blood (40-60 mmHg)

Question 20

What is hypoxia?

Answer 20

Decreased oxygen in the cell tissue

Question 21

What influences hypoxia?

Answer 21

Level of oxygen, capillary circulation adequacy, hemoglobin levels, carrying capacity

Question 22

What are the two main categories of pulmonary disease?

Answer 22

Obstructive Lung Disease and Restrictive Lung Disease

Question 23

What is the definition of COPD?

Answer 23

Disease process which is characterized by a progressive loss of lung function

Question 24

What are the 5 OLD pathologies?

Answer 24

1. Asthma
2. COPD
3. Cystic Fibrosis
4. Bronchopulmonary Dysplasia
5. Lung Cancer

Question 25

What will you see on a chest x-ray in a patient with OLD?

Answer 25

1. Hyperinflation
2. Flattened diaphragm
3. Increased right ventricular size

Question 26

What will RV be in a patient with OLD?

Answer 26

Increased

Question 27

What will TLC be in a patient with OLD?

Answer 27

Increased

Question 28

What will FRC be in a patient with OLD?

Answer 28

Increased

Question 29

What will Forced VC be in a patient with OLD?

Answer 29

Decreased

Question 30

What will FEV1 be in a patient with OLD?

Answer 30

Decreased

Question 31

How will chronic acid/base values appear?

Answer 31

Compensated

Question 32

How will acute acid/base values appear?

Answer 32

Uncompensated

Question 33

What is polycythemia?

Answer 33

Increased RBC

Question 34

What will show up on bloodwork with OLD?

Answer 34

Acid base values and polycythemia