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NCC Inpatient Obstetric Nursing (RNC-OB) Practice Tests & Test Prep by Exam Edge - Free Test


Our free NCC Inpatient Obstetric Nursing (RNC-OB) Practice Test was created by experienced educators who designed them to align with the official National Certification Corporation content guidelines. They were built to accurately mirror the real exam's structure, coverage of topics, difficulty, and types of questions.

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NCC Inpatient Obstetric Nursing - Free Test Sample Questions

A test used during labor to determine if fetal oxygenation is adequate is:

Correct Answer:
fetal scalp blood sampling.


the correct answer to the question "a test used during labor to determine if fetal oxygenation is adequate is:" is fetal scalp blood sampling. this diagnostic method is particularly utilized when there are signs of fetal distress or abnormal heart rate patterns during labor, indicating potential issues with the baby's oxygen supply.

fetal scalp blood sampling, also known as fetal blood sampling or scalp ph testing, involves obtaining a small sample of blood from the fetus's scalp to assess its ph levels. this procedure is performed during labor if there is a concern about the baby’s condition, especially when the fetal heart monitoring suggests potential problems. the ph level of the blood provides direct insight into the baby's oxygenation and acid-base status, helping healthcare providers decide whether immediate intervention, such as a cesarean delivery, is necessary.

to perform fetal scalp blood sampling, the mother's cervix must be dilated sufficiently (usually at least 3 cm) to allow the obstetrician to access the fetal head. using a speculum, the doctor visually locates an area of the scalp and gently abrades it to encourage a small amount of blood to ooze out. this blood is then collected and analyzed quickly in the labor suite to measure its ph level. a ph less than 7.20 often indicates significant acidosis, which can be a sign of hypoxia (insufficient oxygen).

the procedure carries minimal risks to the fetus and is a valuable tool in the management of labor when there are concerns about fetal well-being. it provides critical information that non-invasive methods like external fetal heart monitoring cannot supply, thereby playing a crucial role in decisions related to the management of labor to optimize neonatal outcomes.