Oligohydramnios

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High Yield Notes

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Flashcards

Oligohydramnios

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Questions

USMLE® Step 1 style questions USMLE

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A 1-hour-old newborn girl is evaluated in the nursery for respiratory distress. She was born at 34 weeks gestation to a 17-year-old primigravida woman who did not receive prenatal care. The patient’s temperature is 36.4°C (97.5°F), pulse is 128/min, respirations are 80/min, and blood pressure is 75/30 mmHg. Oxygen saturation is 85% on room air. On physical examination, she appears cyanotic, and subcostal retractions and nasal flaring are noted. The nasal tip is flattened, the ears are low-set, and the chin is small and retracted backward. Appropriate treatment is initiated. Which of the following is the most likely underlying cause for this patient’s condition? 

External References

First Aid

2024

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Bilateral renal agenesis

oligohydramnios and p. NaN

Oligohydramnios p. 631, NaN

Potter sequence p. 596

Placental insufficiency

oligohydramnios and p. NaN

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Summary

Oligohydramnios is a condition in which there is a decrease in the amount of amniotic fluid in the amniotic sac during pregnancy. Amniotic fluid surrounds and protects the baby in the uterus during pregnancy.

Oligohydramnios can negatively affect fetal development, resulting in conditions such as clubfoot and pulmonary hypoplasia; and can also increase the risk of complications during labor and delivery. The causes of oligohydramnios include placental insufficiency, and any fetal condition that decreases fetal urination like renal agenesis. It is diagnosed with ultrasound scans during regular prenatal care.

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