Inpatient Obstetric Nurse (NCC) Practice Exam

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How long does it typically take to see lung maturity benefits after the administration of betamethasone?

12 hours
24 hours
48 hours
72 hours

The correct answer is: 24 hours

The typical time frame to observe the benefits of lung maturity after administering betamethasone is approximately 24 hours. Betamethasone, a glucocorticoid, is commonly given to pregnant patients at risk of preterm delivery as it promotes the production of surfactant in the developing fetal lungs. Surfactant helps keep the alveoli open, reduces surface tension, and is essential for normal breathing after birth. The administration of betamethasone leads to significant changes in the fetal lungs, enhancing their maturity and overall function. While some immediate effects may begin to appear within a shorter time frame, the maximum benefit concerning lung maturity is typically realized around the 24-hour mark. By this time, the biochemical changes initiated by the medication have progressed enough to be beneficial for the infant, especially if delivery occurs soon after treatment. This critical timing is vital in obstetric care, particularly for patients at risk of delivering prematurely.