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HESI Maternity (Maternity) Practice Tests & Test Prep by Exam Edge - Topics



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Understanding what is on the HESI Maternity exam is crucial step in preparing for the exam. You will need to have an understanding of the testing domain (topics covered) to be sure you are studying the correct information.

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HESI Maternity Exam Blueprint

HESI Maternity - Exam Topics Sample Questions

 In terms of pulse oximetry, the oxygen saturation within 10 minutes of birth should be more than

Correct Answer:
90%


pulse oximetry is a non-invasive method used to measure the oxygen saturation level of the blood. this is particularly crucial in newborns to ensure they are receiving adequate oxygenation after birth. the acceptable level of oxygen saturation changes rapidly within the first few minutes of life as the baby transitions from fetal to neonatal circulation.

immediately after birth, it is normal for a newborn to have a lower oxygen saturation. within the first minute of life, commonly known as the golden minute, the oxygen saturation might be as low as 60%. as the newborn begins to breathe air and pulmonary circulation increases, the oxygen saturation should rise quickly.

by 2 minutes, the oxygen saturation should ideally be at least 65%, and by 5 minutes, it should reach at least 80%. within 10 minutes of birth, the recommended oxygen saturation is more than 90%. these levels are important indicators of how well the baby is adapting to life outside the womb. if the oxygen saturation is below these thresholds, it might suggest underlying problems such as respiratory distress, heart defects, or other neonatal conditions.

pulse oximetry in newborns not only provides immediate information post-birth but also plays a critical role in screening for critical congenital heart disease (cchd). cchd screening is recommended to be performed after 24 hours of life but before discharge from the hospital. the screening involves measuring the oxygen saturation in the right hand and either foot. a significant difference between the two readings, or a reading below 95%, can be indicative of a heart defect, warranting further investigation.

therefore, monitoring the oxygen saturation levels through pulse oximetry is crucial not only in the immediate postnatal period to assess the general health and lung function of the newborn but also as a part of essential newborn screening protocols to detect potentially life-threatening conditions early on.