Question

Which is not increased during pregnancy?

• A. Vital Capacity
• B. Blood-volume
• C. Extra cellular fluid
• D. Weight

Hint:

Remember — blood volume, extracellular fluid, and weight rise during pregnancy, but lung capacities like Vital Capacity do not.

Answer 1

The Correct Option is A

During pregnancy, many physiological changes occur to support the growing fetus.
Blood volume increases significantly to supply oxygen and nutrients to the baby.
Extra cellular fluid also expands due to fluid retention and increased plasma volume.
Maternal weight naturally increases because of the fetus, placenta, amniotic fluid, and fat stores.
However, Vital Capacity, which is the maximum amount of air a person can expel from the lungs after a maximum inhalation, does not increase.
In fact, due to the upward displacement of the diaphragm by the growing uterus, lung capacities like Vital Capacity may remain unchanged or even slightly decrease.
Therefore, Vital Capacity is the correct answer because it does not increase during pregnancy.