Late pregnancy injection of sodium chloride to protect the fetus

Injecting sodium chloride during late pregnancy is usually not used as a routine contraceptive measure, and is only used after evaluation by a doctor in specific circumstances. Sodium chloride injection is mainly used to correct electrolyte imbalances or as a drug diluent. Its protective effect is limited, and it is recommended to use targeted drugs such as progesterone and magnesium sulfate in clinical practice. When there are symptoms of threatened premature birth in late pregnancy, doctors may choose magnesium sulfate to inhibit uterine contractions based on the specific situation. Magnesium sulfate reduces uterine excitability by blocking calcium ion channels and also has a protective effect on the fetal nervous system. During use, close monitoring of knee jerk reflex, urine output, and respiratory rate is necessary to prevent magnesium poisoning. Some pregnant women may experience mild reactions such as facial flushing and nausea, which can usually be relieved by adjusting the drip rate. When pregnant women have severe dehydration or hyponatremia, short-term supplementation with sodium chloride injection may be necessary. This condition is more common in patients with preeclampsia or preeclampsia, and should be used with caution in conjunction with blood test results. Excessive sodium chloride may exacerbate edema or hypertension, posing a higher risk for pregnant women with gestational hypertension. Clinically, it is more inclined to supplement electrolytes through oral rehydration salts or adjusting diet.

In late pregnancy, comprehensive evaluation of cervical length, fetal heart rate monitoring, and biochemical indicators is required for fetal preservation. In addition to medication intervention, it is recommended to rest in a left lateral position, maintain a daily water intake of around 2000 milliliters, and avoid lifting heavy objects or standing for long periods of time. If there are regular contractions, vaginal bleeding, or water breakthrough, seek medical attention immediately. All fetal protection treatments should be carried out under the guidance of an obstetrician, and medication or intravenous infusion should not be used on one's own.