Ventilation/Perfusion Ration

Question 1

Air goes in & out

Answer 1

Ventilation

Question 2

blood goes round & round

Answer 2

Perfusion

Question 3

dynamic relationship between the amount of ventilation the alveoli receive & the amount of perfusion through the capillaries surrounding the alveoli

Answer 3

Ventilation/Perfusion (V/Q) Ratio

Question 4

Normally the______have more ventilation than perfusion

Answer 4

Upper lungs

Question 5

Normally the______have more perfusion than ventilation

Answer 5

Lower lungs

Question 6

Normally we have more ____than ____.

Answer 6

perfusion, ventilation.

Question 7

Normal SpO2 =

Answer 7

95-97%

Question 8

amount of air & pressure inside the alveoli & the pressure of the blood flowing through the capillary bed

Answer 8

Pressure Imbalances

Question 9

If the pressure in an alveolus exceeds the blood pressure in the capillary bed, blood flow through the capillary will what?

Answer 9

stop

Question 10

If blood pressure drops, the alveolar pressure can impede blood flow. This will result in:

Answer 10

poor pulmonary perfusion (hypoxemia)

Question 11

A disturbance on the ventilation side of the ventilation/perfusion ration can lead to

Answer 11

Hypoxia

Question 12

An example of a pt. having a ventilator disturbance is a pt. that’s having an

Answer 12

Asthma Attack

Question 13

• Not enought blood to pick up the oxygen available in the alveoli
• No hemoglobin

Answer 13

Perfusion disturbance

Question 14

the loss of the ability of the blood to carry O2

Answer 14

Anemia

Question 15

Oxygen is transported by the blood in 2 ways:

Answer 15

1. dissolved in plasma

2. attached to hemoglobin

Question 16

once an oxygen molecule binds with hemoglobin, it is referred to as

Answer 16

oxyhemoglobin

Question 17

A hemoglobin molecule that has no oxygen attached is referred to as

Answer 17

deoxyhemoglobin

Question 18

hemoglobin is a protein inside the

Answer 18

RBC

Question 19

one hemoglobin molecule carried how many o2 molecules?

Answer 19

4 o2 molecules

Question 20

oxyhemoglobin color?

Answer 20

bright red

Question 21

deoxyhemoglobin color?

Answer 21

dark red

Question 22

1 oxygen molecule is attached to the hemoglobin molecule, it will have what % saturation?

Answer 22

25% saturation

Question 23

4 oxygen molecule is attached to the hemoglobin molecule, it will have what % saturation?

Answer 23

100% saturation

Question 24

Carbon dioxide is transported in the blood in 3 ways:

Answer 24

• 7% plasma
• 23% hemoglobin
• 70% bicarbonate