When observing a drug-exposed newborn, what symptom suggests that the newborn may be exhibiting withdrawal symptoms?
Sleepiness
Constipation
Irritability
Absent or startle reflex
The Correct Answer is C
Choice A reason:
Sleepiness is not a symptom of withdrawal in newborns. Sleepiness may be caused by other factors such as hypoglycemia, hypothermia, or infection.
Choice B reason:
Constipation is not a symptom of withdrawal in newborns. Constipation may be caused by dehydration, formula intolerance, or lack of bowel stimulation.
Choice C reason:
Irritability is a symptom of withdrawal in newborns. Irritability may manifest as excessive crying, jitteriness, tremors, or increased muscle tone. Irritability is caused by the overstimulation of the central nervous system due to the absence of the drug that the newborn was exposed to in utero.
Choice D reason:
Absent or startle reflex is not a symptom of withdrawal in newborns. Absent or startle reflex may indicate neurological damage, hypoxia, or brachial plexus injury. The startle reflex, also known as the Moro reflex, is a normal response to sudden stimuli in newborns.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Hypertonia is not a characteristic of a preterm infant, but rather of a post-term infant. Hypertonia means increased muscle tone or stiffness, which is more common in infants who are overdue. Preterm infants have poor muscle tone and less subcutaneous fat.
Choice B reason:
Long toenails are also not a characteristic of a preterm infant but of a post-term infant. Long toenails indicate that the infant has grown beyond the expected gestational age. Preterm infants have short and brittle nails.
Choice C reason:
Lanugo is a characteristic of a preterm infant. Lanugo is fine, downy hair that covers the body of the fetus. It usually disappears by the 36th week of gestation, but preterm infants may still have it at birth.
Choice D reason:
Dry skin is not a characteristic of a preterm infant but of a post-term infant. Dry skin indicates that the infant has lost moisture and subcutaneous fat due to prolonged exposure to the amniotic fluid. Preterm infants have thin and transparent skin that may be covered by vernix caseosa, a white, cheesy substance that protects the skin from the amniotic fluid.
Correct Answer is D
Explanation
Choice A:
Two arteries and two veins. This is incorrect because the umbilical cord normally has only three blood vessels: one vein and two arteries. Having four blood vessels is a rare anomaly that can be associated with congenital defects. •
Choice B:
Two veins and one artery. This is incorrect because the umbilical cord normally has only one vein and two arteries. Having two veins and one artery is another rare anomaly that can also be associated with congenital defects. •
Choice C:
One artery and one vein. This is incorrect because the umbilical cord normally has two arteries and one vein. Having only one artery and one vein is a common anomaly that occurs in about 1% of singleton pregnancies and 5% of twin pregnancies. It can be associated with intrauterine growth restriction, congenital anomalies, and perinatal mortality. •
Choice D:
Two arteries and one vein. This is correct because the umbilical cord normally has two arteries and one vein. The vein carries oxygenated blood from the placenta to the fetus, while the arteries carry deoxygenated blood from the fetus to the placenta. The umbilical cord also contains Wharton's jelly, which is a gelatinous substance that protects the blood vessels from compression.
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