17. Which of the following is NOT a compensatory change, after hemorrhaging, to

Question

17. Which of the following is NOT a compensatory change, after hemorrhaging, to restore MAP to normal?

A. Increased synthesis of plasma proteins

B. Increased filatration by capillaires

C. Increased total peripheral resistance

D. Increased venous return

E. Increased stroke volume

18. If the blood had no red blood cells but lungs were functioning normally:

A. The arterial PO2 would be normal

B. The total oxygen content of arteial blood would be normal

C. Both a) and B) are correct

D. None of the above is correct

Explanation / Answer

Answer:

17).

A. Increased synthesis of plasma proteins

The normal expansion of plasma volume and plasma protein mass that occurs with fetal growth was not altered by a large fetal blood loss. However, in spite of a transient increase in plasma erythropoietin levels the fetuses undergoing hemorrhage did not restore their red blood cell mass or blood volume.

18). PO2 would be normal as the O2 is dissolved in plasma

The oxygen diffuses from lung into blood and is both dissolved and bound to Hb, so that  lungs were functioning normally even in lack of red blood cells in the blood.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.