Question

Which of the following is false as physiological change in pregnancy?

• A. Increase cardiac output
• B. Increase total protein
• C. Increase residual volume
• D. Increase GFR

Answer 1

The Correct Option is C

In pregnancy, several physiological changes occur to support the developing fetus and adapt to the increased metabolic demands on the mother's body. Let's evaluate the given options:

• Increase cardiac output: During pregnancy, cardiac output increases to supply more blood to the placenta and meet the increased metabolic needs of both the mother and fetus. This is true.
• Increase total protein: In contrast, total plasma protein levels often decrease due to hemodilution, as the plasma volume increases more significantly than the increase in protein. Therefore, this would generally be incorrect regarding increases in pregnancy.
• Increase residual volume: Residual volume typically decreases during pregnancy due to the diaphragm being pushed upwards by the growing uterus, reducing lung volumes. Therefore, stating an increase in residual volume is false.
• Increase GFR: Glomerular filtration rate (GFR) usually increases during pregnancy as renal blood flow increases to help eliminate additional waste products generated. This is true.

Conclusively, the incorrect statement concerning physiological changes in pregnancy is: Increase residual volume.