How long to take oxygen during pregnancy

During pregnancy, many pregnant women always feel that they often have symptoms of difficulty breathing, which will be very uncomfortable at this time, so they need to use oxygen during pregnancy, but it does not need to be used for too long, about one or two hours is enough. Also, do not eat food with strong fishy smell to avoid symptoms of morning sickness and nausea.

How long is it better for pregnant women to breathe oxygen?

There are too many electrical appliances to prevent radiation.

Don’t live in high-rise buildings. Climbing stairs is very tiring for pregnant women. If there is no other way, go downstairs less and walk around appropriately.

Keep up with the nutrition. If you have severe reactions during pregnancy and cannot eat, you can buy milk powder for pregnant women, but pay attention to the brand.

Eat small meals frequently to help absorb nutrients. Don’t eat too much fruit. If possible, eat a kiwi fruit (the king of fruits) every day.

Morning sickness

Pregnant women may experience symptoms such as dizziness, fatigue, food pickiness, loss of appetite, mild nausea and vomiting in the early stages of pregnancy. This is medically known as early pregnancy reaction, and folkly known as "morning sickness." Because nausea and vomiting are more severe in the early morning on an empty stomach, it is also called "morning sickness."

Causes of morning sickness

Affected by endocrine factors, human chorionic gonadotropin (HCG) will rise rapidly after pregnancy. The higher the concentration of this hormone in the blood, the more severe the morning sickness will be. Under normal circumstances, HCG will begin to decline after ten weeks, and therefore the symptoms of morning sickness will also improve. For this reason, pregnant women with twins or hydatidiform mole usually have higher HCG levels and naturally more severe morning sickness.

During the embryonic period, the prototype of the fetus undergoes subtle organ differentiation in the mother's body, and tissue cells begin to differentiate and "reorganize" to form the various organs of the fetus. At this time, the fetus is most actively developing, and it is a self-defense reaction to protect the embryo from toxic substances.

In the early stages of pregnancy, the mother's body resistance decreases. In order to prevent the mother's immune system from rejecting the fetus, she experiences morning vomiting to spit out harmful toxins in food, prevent food poisoning, and protect the fetus.

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Respiratory function changes in early pregnancy. At 18 weeks, the pregnant woman's oxygen consumption increases by 10-20% (50% of which is consumed by the fetus). The lung ventilation volume increases by 40% to meet the oxygen demand of the pregnant woman and the fetus. In addition, the pregnant woman's nose, pharynx, trachea and other respiratory mucosa are congested and edematous, so she is prone to upper respiratory tract infection. Due to the increased demand for oxygen in pregnant women, the condition is likely to worsen when pregnancy is combined with respiratory diseases.