Blood Gas Transport Flashcards Preview

Undeleted > Blood Gas Transport > Flashcards

Flashcards in Blood Gas Transport Deck (13)
Loading flashcards...
0
Q

At rest arterial blood carries…. mL oxygen per deciliter, and returning venous blood carries about …. mL of oxygen per deciliter.

A

19.4…. 14.4…

1
Q

How much oxygen can one gram of hemoglobin transport?

A

1.34 mL of Oxygen

2
Q

What is the oxygen utilization coefficient at rest??

A

25%

3
Q

What % of carbon dioxide is carried in the blood as bicarbonate ions?

A

70%

4
Q

What will an increase in blood partial oxygen pressure result?

A

An increase in bound oxygen.

5
Q

Factors that shift the oxygen- hemoglobin curve to the right and downward, causing more oxygen to be released from the hemoglobin?

A

a decrease in pH, and increase in carbon dioxide, an increase in BPG, and an increase in temperature.

6
Q

What occurs when there is an increase in blood carbon dioxide causing oxygen to be displaced from hemoglobin.

A

Bohr effects…. Shifts oxygen-hemoglobin dissociation curve to right.

7
Q

The displacement of carbon dioxide that occurs when hemoglobin binds with oxygen in the lungs

A

The Haldane effect

8
Q

What is the limiting factors for cellular reactions when intracellualr PO2 is above 1mm Hg?

A

ADP

9
Q

In carbon monoxide poisoning….

A

the PO2 of blood may be normal and the blood may be bright red.

10
Q

In order to maintain electrical neutrality,

A

red blood cells utilize a bicarbonate; chloride ion co-transporter(in opposite directions).

11
Q

What occurs when pulmonary capillary pressure exceeds 25 mm Hg?

A

Pulmonary edema

12
Q

What is the most common cause of pulmonary edema?

A

Left heart failure, mitral valve diseases, and breathing noxious substances