RESPIRATORY AND O2 TRANSPORTATION

Front

What is the normal alveolar and arterial PO2 level?

Back

About 100 mm Hg.

Front

What is the normal alveolar and arterial PCO2 level?

Back

About 40 mm Hg.

Front

What is the normal venous PO2 level?

Back

40 mm Hg.

Front

What is the normal venous PCO2 level?

Back

46 mm Hg.

Front

What condition is characterized by the destruction of alveoli, leading to less surface area for gas exchange?

Back

Emphysema.

Front

What is a potential cause of low arterial oxygen pressure?

Back

Chronic obstructive pulmonary disease (COPD).

Front

What is pulmonary edema?

Back

A condition involving fluid accumulation in the lungs, affecting gas exchange.

Front

How does fluid in the interstitial space of the lungs affect gas exchange?

Back

It increases diffusion distance.

Front

What effect does carbon monoxide have on blood oxygen saturation?

Back

It decreases oxygen saturation.

Front

What is the impact of the composition of inspired air on alveolar PO2?

Back

It affects the level of alveolar PO2.