The cheese-like, whitish substance that fuses with the epidermis and serves as a protective coating is called:
Vernix caseosa
Surfactant
Caput succedaneum
Acrocyanosis
The Correct Answer is A
Vernix caseosa is a cheese-like, whitish substance that fuses with the epidermis and serves as a protective coating for the newborn.
Some possible explanations for the other choices are:
- Choice B. Surfactant is a protein that lines the alveoli of the infant’s lungs and helps prevent them from collapsing.
- Choice C. Caput succedaneum is a swelling of the tissue over the presenting part of the fetal head caused by pressure during delivery.
- Choice D. Acrocyanosis is a bluish discoloration of the hands and feet due to reduced peripheral circulation.
Normal ranges for vernix caseosa are not applicable as it varies depending on the gestational age and skin maturity of the newborn. However, it is usually more abundant in preterm infants than in term or post-term infants.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choice D. Perinatal transmission of HIV is when HIV is passed from a woman with HIV to her child during pregnancy, childbirth, or breastfeeding.
Breast milk from an infected mother can contain HIV and infect the baby.
Choice A is wrong because HIV can be transmitted at any stage of pregnancy, not only in the third trimester.
Choice B is wrong because needlestick injury is not a common mode of perinatal transmission of HIV. It is more likely to occur among health care workers who are exposed to contaminated needles or sharp objects.
Choice C is wrong because HIV can also be transmitted through the ingestion of amniotic fluid, but it is not the only way. Amniotic fluid is the fluid that surrounds and protects the baby in the womb.
Correct Answer is C
Explanation
Magnesium sulfate is given to women with preeclampsia and eclampsia to prevent and treat convulsions.
Magnesium sulfate is a mineral that reduces seizure risks in women with preeclampsia. A healthcare provider will give the medication intravenously. Sometimes, it’s also used to prolong pregnancy for up to two days. This allows drugs that speed up your baby’s lung development to be administered.
Choice A is wrong because magnesium sulfate does not improve patellar reflexes or increase respiratory efficiency. In fact, it may cause decreased or absent deep tendon reflexes and respiratory depression as side effects.
Choice B is wrong because magnesium sulfate does not shorten the duration of labor. It may actually prolong labor by inhibiting uterine contractions.
Choice D is wrong because magnesium sulfate does not prevent a boggy uterus or lessen the lochial flow. It has no effect on uterine tone or bleeding after delivery.
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