Blood Gas Transport Flashcards
At rest, arterial blood carries ….
19.4 ml oxygen per deciliter
One gram of hemoglobin can transport how much oxygen?
1.34 ml of oxygen
returning venous blood carries ….
about 14.4 ml of oxygen per deciliter.
- At rest, the oxygen utilization coefficient is about ….
25 percent.
How much of carbon dioxide is carried in the blood as bicarbonate ion?
About 70%
An increase in blood partial oxygen pressure will result in what?
an increase in bound oxygen
Factors that shift the oxygen-hemoglobin curve to the right and downward, causing more oxygen to be released from the hemoglobin, include:
a decrease in pH, an increase in carbon dioxide, an increase in BPG, and an increase in temperature.
Bohr effect occurs when?
there is an increase in blood carbon dioxide causing oxygen to be displaced from hemoglobin. Shifts oxygen-hemoglobin dissociation curve to right
The displacement of carbon dioxide that occurs when hemoglobin binds with oxygen in the lungs is what?
the Haldane effect.
When intracellular pO2 is above 1 mm Hg, the limiting factor for cellular chemical reactions is what?
ADP
What happens in carbon monoxide poisoning?
the pO2 of the blood may be normal and the blood may be bright red.
In order to maintain electrical neutrality, red blood cells utilize what?
a bicarbonate/chloride ion co-transporter (in opposite directions).
When does Pulmonary edema occur?
when pulmonary capillary pressure exceeds 25 mm Hg.
What is the most common causes of pulmonary edema?
are left heart failure, mitral valve diseases, and breathing noxious substances.
