EXPH 386 chapter 13 pt. 3 Exam Questions and Answers Fully Solved Latest 2025-2026
If you increase VA (Aveolar ventilation) what happens - AnswersDecrease in CO2 so it causes....
Alkalosis
If you decrease VA what happens - AnswersIncrease in CO2 so it causes.....
Acidosis
You don't want _____ of these to occur - AnswersEither
The lungs regulate pH _______ but the kidney uses active transport mechanisms so it may take
____ for it to regulate pH - AnswersImmediately
Days
Hypoxemia (low arterial PO2 or PaO2) - AnswersLow oxygen in blood
Oxygenation Requirments - AnswersOxygen in alveoli
Diffusion of oxygen from alveoli to blood
Blood flow (perfusion) to lungs
Ventilation (gas flow) and perfusion need to be matched (same place same time)
When you get _______, atleats 1 of these 4 things has gone wrong - AnswersHypoxemia
When you __________ you decrease the amount of ____ in the body - AnswersHypoventilate (hold
breath)
O2
, T/F
When you hyperventilate you increase the amount of oxygen in the body? - AnswersFalse
At normal breathing you already have maxed saturation of Hb, so you can't bring in anymore
When the body doesn't diffuse oxygen into the blood - AnswersDiffusion limitation
Lack of blood flow to lung - AnswersShunt
Ventilation and perfusion is not in the same spot - AnswersV/Q mismatch
During hypoventilation you see decreased ___ everywhere in the _____ but not in the external air -
AnswersPO2
Body
Causes of hypoventilation - AnswersDrugs
Diseases or brain
Trauma (head, body)
Nerve damage
A healthy person can get _______ immediately by traveling to high altitudes - AnswersHypoxemia
This means you have lower ___ even thought you are completely healthy - AnswersPO2
When you become hypoxic because of high altitude:
Not only does arterial PO2 decrease, but _____ _____ also decreases which means your oxygen
_____ decreases - AnswersVenous PO2
If you increase VA (Aveolar ventilation) what happens - AnswersDecrease in CO2 so it causes....
Alkalosis
If you decrease VA what happens - AnswersIncrease in CO2 so it causes.....
Acidosis
You don't want _____ of these to occur - AnswersEither
The lungs regulate pH _______ but the kidney uses active transport mechanisms so it may take
____ for it to regulate pH - AnswersImmediately
Days
Hypoxemia (low arterial PO2 or PaO2) - AnswersLow oxygen in blood
Oxygenation Requirments - AnswersOxygen in alveoli
Diffusion of oxygen from alveoli to blood
Blood flow (perfusion) to lungs
Ventilation (gas flow) and perfusion need to be matched (same place same time)
When you get _______, atleats 1 of these 4 things has gone wrong - AnswersHypoxemia
When you __________ you decrease the amount of ____ in the body - AnswersHypoventilate (hold
breath)
O2
, T/F
When you hyperventilate you increase the amount of oxygen in the body? - AnswersFalse
At normal breathing you already have maxed saturation of Hb, so you can't bring in anymore
When the body doesn't diffuse oxygen into the blood - AnswersDiffusion limitation
Lack of blood flow to lung - AnswersShunt
Ventilation and perfusion is not in the same spot - AnswersV/Q mismatch
During hypoventilation you see decreased ___ everywhere in the _____ but not in the external air -
AnswersPO2
Body
Causes of hypoventilation - AnswersDrugs
Diseases or brain
Trauma (head, body)
Nerve damage
A healthy person can get _______ immediately by traveling to high altitudes - AnswersHypoxemia
This means you have lower ___ even thought you are completely healthy - AnswersPO2
When you become hypoxic because of high altitude:
Not only does arterial PO2 decrease, but _____ _____ also decreases which means your oxygen
_____ decreases - AnswersVenous PO2
