Which data should alert the nurse that the neonate is postmature?
Presence of lanugo
Short, chubby appearance
Presence of vernix caseosa
Cracked, peeling skin
The Correct Answer is D
Choice A: This is incorrect because lanugo is a fine, downy hair that covers the fetus in utero. It usually disappears by the 36th week of gestation, but it may persist in some preterm infants. Lanugo helps to retain body heat and protect the skin from amniotic fluid. Lanugo is not a sign of postmaturity, but of prematurity or intrauterine growth restriction.
Choice B: This is incorrect because a short, chubby appearance is typical of a term infant, who is born between 37 and 42 weeks of gestation. A term infant has a well-developed subcutaneous fat layer that gives them a rounded shape and smooth skin. A term infant also has a head circumference that is proportional to their body length and weight. A short, chubby appearance is not a sign of postmaturity, but of normal development.
Choice C: This is incorrect because vernix caseosa is a white, cheesy substance that covers the fetus in utero. It usually decreases by the 40th week of gestation, but it may remain in some term infants, especially in the skin folds. Vernix caseosa helps to moisturize and protect the skin from amniotic fluid and infection. Vernix caseosa is not a sign of postmaturity, but of term or near-term gestation.
Choice D: This is the correct answer because cracked, peeling skin is a common sign of postmaturity, which occurs when the infant is born after 42 weeks of gestation. A postmature infant has a loss of subcutaneous fat and water that results in dry, wrinkled, and desquamated skin. A postmature infant also has a large head circumference that is disproportionate to their body length and weight. Cracked, peeling skin indicates prolonged exposure to amniotic fluid and placental insufficiency.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A) Antihypertensive: This is not the correct classification of magnesium sulfate. Antihypertensives are drugs that lower blood pressure, such as beta blockers, calcium channel blockers, or angiotensin-converting enzyme inhibitors. Magnesium sulfate does not have a significant effect on blood pressure, and it is not used as a primary treatment for hypertension in preeclampsia.
Choice B) Anticonvulsant: This is the correct classification of magnesium sulfate. Anticonvulsants are drugs that prevent or reduce the frequency and severity of seizures, such as phenytoin, valproic acid, or carbamazepine.
Magnesium sulfate is used as a prophylactic and therapeutic agent for eclampsia, which is a life-threatening complication of preeclampsia characterized by seizures. Magnesium sulfate acts by blocking the neuromuscular transmission and reducing the cerebral edema and vasospasm.
Choice C) Tocolytic: This is not the correct classification of magnesium sulfate. Tocolytics are drugs that inhibit uterine contractions and delay preterm labor, such as terbutaline, nifedipine, or indomethacin. Magnesium sulfate is not effective as a tocolytic agent, and it is not recommended for this purpose by the American College of Obstetricians and Gynecologists.
Choice D) Diuretic: This is not the correct classification of magnesium sulfate. Diuretics are drugs that increase urine output and reduce fluid retention, such as furosemide, hydrochlorothiazide, or spironolactone. Magnesium sulfate does not have a diuretic effect, and it can cause fluid overload and pulmonary edema if administered in excess.
Correct Answer is C
Explanation
Choice A: This is incorrect because preeclampsia is a condition characterized by hypertension, proteinuria, and edema that occurs after 20 weeks of gestation. It is not related to abruptio placentae, which is the premature separation of the placenta from the uterine wall. Preeclampsia does not cause petechiae or bleeding around the IV site, but it may cause headache, blurred vision, epigastric pain, or seizures.
Choice B: This is incorrect because anaphylactoid syndrome of pregnancy, also known as amniotic fluid embolism, is a rare and life-threatening complication that occurs when amniotic fluid enters the maternal circulation and triggers an allergic reaction. It is not related to abruptio placentae, but it may occur during labor, delivery, or shortly after birth. Anaphylactoid syndrome of pregnancy does not cause petechiae or bleeding around the IV site, but it may cause respiratory distress, hypotension, cardiac arrest, or disseminated intravascular coagulation.
Choice C: This is the correct answer because disseminated intravascular coagulation (DIC) is a condition in which the blood clotting system is activated abnormally, leading to excessive clot formation and consumption of clotting factors and platelets. This results in bleeding from various sites, such as the IV site, gums, nose, or vagina. DIC is a common complication of abruptio placentae, as the release of thromboplastin from the placenta triggers the clotting cascade. DIC can also cause organ failure, shock, or death if not treated promptly.
Choice D: This is incorrect because puerperal infection, also known as postpartum infection, is a bacterial infection that affects the uterus, vagina, bladder, or wound site after childbirth. It is not related to abruptio placentae, but it may occur due to prolonged labor, cesarean delivery, retained placenta, or poor hygiene. Puerperal infection does not cause petechiae or bleeding around the IV site, but it may cause fever, malaise, foul-smelling lochia, or pelvic pain.
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