The newborn of a patient suspected to have used drugs during the prenatal period is admitted to the nursery.The nurse caring for the newborn notes that the infant is beginning to exhibit signs of drug withdrawal.Which action should the nurse take?

The correct answer is choice A and it indicates fetal distress because it is a sign oflate deceleration.Late decelerations are due touteroplacental insufficiencyas the result of decreased blood flow and oxygen to the fetus during the uterine contractions.This causeshypoxemiaand can lead to fetal acidosis and neurological damage.

Choice B is wrong because it indicates anormal variabilityin the fetal heart rate, which reflects a healthy autonomic nervous system.A normal fetal heart rate is 120-160 beats per minute.

Choice C is wrong because it indicates anearly accelerationin the fetal heart rate, which is a benign finding that may occur with fetal movement or stimulation.

Choice D is wrong because it indicates anearly decelerationin the fetal heart rate, which is a normal response to fetal head compression during contractions.

It does not indicate fetal distress.

Normal ranges for fetal heart rate patterns are:

• Baseline: 120-160 beats per minute

• Variability: 6-25 beats per minute

• Accelerations: at least 15 beats per minute above baseline for at least 15 seconds

• Decelerations: none or early (mirror contractions)

The correct answer is choice C. Dryness and flaking of the skin on the hands and feet.This is because a newborn with a gestational age of 42 weeks is considered post-mature and has lost the protective vernix caseosa that covers the skin of most newborns.The skin of a post-mature newborn is also more exposed to the amniotic fluid, which can cause it to peel and crack.

Choice A is wrong because sole creases that cover only the anterior one-third of the foot are characteristic of a preterm newborn, not a post-mature one.

Choice B is wrong because vernix caseosa is abundant in preterm newborns and decreases as gestational age increases.A post-mature newborn would have little or no vernix caseosa on the skin.

Choice D is wrong because a large amount of fine, downy hair (lanugo) on the back and shoulders is also typical of a preterm newborn, not a post-mature one.Lanugo usually disappears by 36 weeks of gestation.A post-mature newborn would have little or no lanugo on the body.