Sodium chloride can protect the fetus for up to three days

Sodium chloride injection is usually not recommended for continuous use for more than three days when used for fetal protection treatment. Sodium chloride injection is mainly used to supplement body fluids or as a drug solvent in fetal protection. Long term use may cause risks such as electrolyte imbalance or edema. The specific duration of use should strictly follow the doctor's advice and be adjusted according to the individual situation of the pregnant woman.

Sodium chloride injection, as an isotonic solution, can help maintain stable blood volume in pregnant women in the short term, especially suitable for dehydration caused by preeclampsia. In clinical practice, it is often used in combination with other fetal protection drugs, such as Rituojun hydrochloride Injection, but relying solely on sodium chloride for fetal protection has limited effectiveness. Doctors will comprehensively evaluate whether it is necessary to extend the infusion time based on indicators such as uterine contraction frequency and cervical length. If pregnant women have underlying diseases such as gestational hypertension and renal insufficiency, continuous use of sodium chloride injection may increase cardiac burden. Some cases may experience adverse reactions such as elevated blood sodium and abnormal weight gain, in which case the treatment plan needs to be adjusted immediately. For pregnant women with threatened premature birth, it is usually necessary to use uterine contraction inhibitors to achieve the desired effect of protecting the fetus.

It is recommended to rest in the left lateral position during the fetal protection period, and monitor daily changes in weight and urine output. Diet should control sodium intake and supplement potassium rich foods such as bananas and spinach in moderation. When experiencing headaches, blurred vision, or obvious edema in the lower limbs, it is necessary to promptly inform the doctor to adjust the infusion plan. Regular fetal heart monitoring and ultrasound examination are conducted to ensure the safety of the fetus in the uterus.