North American Registry of Midwives (NARM) Practice Exam

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Which of the following indicates adequate placental perfusion during labor?

  1. Duration of rest phases between uterine contractions

  2. Fetal heart rate acceleration

  3. Presence of fetal movement

  4. Maternal blood pressure measurement

The correct answer is: Duration of rest phases between uterine contractions

Adequate placental perfusion during labor is primarily indicated by the presence of fetal heart rate acceleration. This demonstrates that the fetus is receiving sufficient oxygen and nutrients, which are essential for its well-being. When the fetus experiences a healthy environment, it can exhibit reactive heart rate patterns, including accelerations, which signify an appropriate response to stimuli and confirm that the placenta is functioning properly. In addition, the presence of fetal movement is another good indication of well-being, as it reflects normal fetal activity related to a well-oxygenated state. However, the most direct and significant marker among the choices for assessing placental perfusion is fetal heart rate acceleration.