You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In pregnancy following change takes place - and explain in detail?
Ans. is 'a' i.e., Tidal volume increase Respiratory changes during pregnancyo TLC is reduced by 5%o Subcostal angle increases from 69 to 103.o Tidal volume increases.o PaCO2 fall from 38 to 32 mnvhg & PaO2 rises from 95 t0 105 mm/hgo Pregnancy is a state of respiratory alkalosis.o Cardiac output increases during pregnancy, (already explained)