Pulmonary A&P MUST KNOW

Question 1

Occurs when more O2 is supplied and more CO2 is removed from blood

Answer 1

alveolar hyperventilation

Hypocapnia

Question 2

PaO2 INCREASES & PaCO2 DECREASES

Answer 2

alveolar hyperventilation

Question 3

Occurs when less O2 is supplied and less CO2 removed from blood

Answer 3

Alveolar hypoventilation

hypercapnia

Question 4

Alveolar hyperventilation will cause more carbon dioxide to be removed from the blood stream than the body can produce. This causes the concentration of carbon dioxide in the blood stream to fall and produces a state known as

Answer 4

Hypocapnia

Question 5

Alveolar hypoventilation will cause an excess of CO2 in the blood stream resulting in

Answer 5

Hypercapnia

Question 6

Causes of CO2 production:

Answer 6

• Fever / Shivering
• Muscle exertion
• Metabolic processes resulting in the formation of metabolic acids.

Question 7

Causes of decreased decreased CO2 elimination from hypoventilation:

Answer 7

• Respiratory depression.
• Airway obstruction.
• Obstructive disease.

Question 8

CAUSES OF DECREASED CO2:

Answer 8

Hyperventilation lowers CO2

Question 9

Where is the respiratory center?

Answer 9

medulla and pons

Question 10

Inspiration/exhalation ratio is:

Answer 10

2:3

Question 11

Pneumotaxic area in the pons:

Answer 11

• Maintains normal pattern of respirations.
• Inhibitory impulse shortens inhalation, increases RR.

Question 12

Pneumotaxic area in the pons:

Answer 12

• Maintains normal pattern of respirations.
• Inhibitory impulse shortens inhalation, increases RR.

Question 13

Apneustic area in the pons:

Answer 13

• Prolong inspiration.
• Apnea?