Chapter 18 Flashcards
1
Q
Hypoxia
A
too little oxygen
2
Q
Hypercapnia
A
increased concentrations of carbon dioxide
3
Q
Regulated Variables
A
Oxygen, Carbon Dioxide, pH
4
Q
Hypoxic hypoxia
A
low arterial Po2, high altitude, alveolar hypoventilation, decreased lung diffusion capacity
5
Q
Anemic hypoxia
A
decreased total amount of O2 bound to hemoglobin, blood loss, anemia, CO poisoning
6
Q
Ischemic hypoxia
A
reduced blood flow, heart failure, shock, thrombosis
7
Q
Histotoxic hypoxia
A
failure of cells to use O2, cell poisoning, cyanide
8
Q
Movement of gases is directly proportional to:
A
pressure gradient of the gas, solubility of the gas in liquid, temperature
9
Q
<2% of O2 in the blood is…
A
dissolved
10
Q
Fick Equation
A
estimates oxygen consumption (Qo2 = CO x (Arterial[O2] - Venous [O2])
