Darovik CH 11

Question 0

Metabolism of glucose produces what ?

Answer 0

Carbon dioxide - exhaled
Water - added to body’s water pool
Adenosine triphosphate (ATP) - energy

Question 1

The amount of energy produced is determined by ?

Answer 1

The metabolic rate, amount of glucose, and amount of oxygen available.

Question 2

When oxygen becomes unavailable or is inadequate, cells are forced to metabolize ———.

Answer 2

Anaerobically

Question 3

Under anaerobic conditions, the amount of ATP generated is reduced to ——– and ——– rather than water and carbon dioxide is released by the cells.

Answer 3

97%

Lactic acid

Question 4

Energy crisis and The accumulation of lactic acid are clinical evidence of what ?

Answer 4

Organ dysfunction/failure and metabolic acidosis.

Question 5

The amount of oxygen normally consumed at rest is only about —– of the amount delivered.

Answer 5

25%

Question 6

The amount of oxygen in mixed venous blood is about 75% of that of arterial blood. This is termed what?

Answer 6

Mixed venous reserve

Question 7

Hypoxemia

Answer 7

PaO2 < 60 mmHg

Question 8

Carbon monoxide poisoning

Answer 8

Methemoglobinemia

Question 9

Hematopoetic problems

Answer 9

Aplastic anemia, the leukemias

Question 10

3 Conditions that inhibit the cells from taking up/ utilizing oxygen.

Answer 10

Sepsis
Cyanide
Ethanol toxicity

Question 11

Compensatory mechanism of increased cardiac output, how much can the average body compensate?

Answer 11

15 -25 l/m

Question 12

Compensatory mechanism of increased oxygen extraction may drop the mixed venous oxygen saturation as low as 31% before what ?

Answer 12

Forced into anaerobic metabolism, termed drawing from the venous reserve.