The nurse is reading the results of non-stress test (NST) strips completed that day. Which of the following strips meets the criteria for a reactive NST? Select one:
A fetal heart rate baseline of 140 with one acceleration to 155 for 15 seconds within 30 minutes.
A fetal heart rate baseline of 140 with two accelerations to 160 for 15 seconds within 20 minutes.
A fetal heart rate baseline of 130 with two accelerations to 135 for 15 seconds within 20 minutes.
A fetal heart rate baseline of 150 with two accelerations to 160 for 10 seconds within 20 minutes.
The Correct Answer is B
Choice A Reason: A fetal heart rate baseline of 140 with one acceleration to 155 for 15 seconds within 30 minutes. This is an incorrect answer that indicates a non-reactive NST, which is a test that does not meet the criteria for a reactive NST. A non-reactive NST may suggest fetal hypoxia, distress, or sleep, but it does not necessarily indicate a problem. A non-reactive NST may require further testing or stimulation to elicit a reactive result.
Choice B Reason A fetal heart rate baseline of 140 with two accelerations to 160 for 15 seconds within 20 minutes. This is because this strip meets the criteria for a reactive NST, which is a non-invasive test that evaluates fetal well- being and oxygenation by measuring the fetal heart rate response to fetal movements. A reactive NST is defined as having at least two accelerations of the fetal heart rate that are at least 15 beats per minute above the baseline and last for at least 15 seconds within a 20-minute period.
Choice C Reason: A fetal heart rate baseline of 130 with two accelerations to 135 for 15 seconds within 20 minutes. This is an incorrect answer that indicates a non-reactive NST, which is a test that does not meet the criteria for a reactive NST. The accelerations in this strip are not sufficient in amplitude, as they are only 5 beats per minute above the baseline, instead of at least 15 beats per minute.
Choice D Reason: A fetal heart rate baseline of 150 with two accelerations to 160 for 10 seconds within 20 minutes. This is an incorrect answer that indicates a non-reactive NST, which is a test that does not meet the criteria for a reactive NST. The accelerations in this strip are not sufficient in duration, as they last only for 10 seconds, instead of at least 15 seconds.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: Taking the newborn to the nursery for the initial assessment. This is an ineffective intervention that disrupts parental atachment by separating the mother and the newborn. It also deprives the newborn of the benefits of skin to skin contact and breastfeeding.
Choice B Reason: Allowing the mother a chance to rest without the baby immediately after delivery. This is an unnecessary intervention that delays parental atachment by postponing the first contact between the mother and the newborn. It also ignores the mother's desire and readiness to hold and feed her baby.
Choice C Reason: Placing the newborn under a radiant warmer to do the initial assessment. This is an outdated intervention that hinders parental atachment by creating a physical barrier between the mother and the newborn. It also exposes the newborn to potential risks such as dehydration, hyperthermia, or eye damage.
Choice D Reason: Placing the newborn on the maternal abdomen and doing the initial assessment. This is because this intervention facilitates skin to skin contact, eye contact, and bonding between the mother and the newborn. It also enhances breastfeeding initiation, thermoregulation, and maternal-infant atachment.
Correct Answer is D
Explanation
Choice A Reason: Hyperglycemia and increased appetite. This is an incorrect answer that describes symptoms of diabetes mellitus, not sepsis. Diabetes mellitus is a chronic metabolic disorder where the body cannot produce or use insulin effectively, which results in high blood glucose levels and impaired glucose tolerance. Diabetes mellitus can affect newborns if the mother has pre-existing or gestational diabetes, which can cause macrosomia, hypoglycemia, or congenital anomalies.
Choice B Reason: Increased urinary output and spitting up mucous. This is an incorrect answer that indicates normal or benign conditions, not sepsis. Increased urinary output is a normal finding in newborns, as they eliminate the excess fluid that was accumulated during pregnancy. Spitting up mucous is a common occurrence in newborns, as they clear their airways of amniotic fluid or secretions.
Choice C Reason: Wakefulness and ruddy appearance. This is an incorrect answer that suggests healthy or normal characteristics, not sepsis. Wakefulness is a sign of alertness and responsiveness in newborns, which reflects their neurological development and adaptation. Ruddy appearance is a reddish color of the skin that is normal in newborns, especially in term or post-term infants, which indicates adequate oxygenation and hemoglobin levels.
Choice D Reason: Temperature instability and lethargy. This is because temperature instability and lethargy are common signs of sepsis in newborns, which indicate systemic infection and inflammation. Sepsis is a life-threatening condition where the body's response to infection causes tissue damage, organ failure, or death. Sepsis can occur in newborns due to maternal, fetal, or neonatal factors, such as chorioamnionitis, premature rupture of membranes, prolonged labor, invasive procedures, or bacterial colonization.

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