The nurse is working with a patient who has experienced a fetal death in utero at 20 weeks. The patient asks what her baby will look like when it is delivered. Which statement by the nurse is the best response?
1. "Your baby will be covered in fine hair called lanugo."
2. "Your child will have arm and leg buds, but not fully formed limbs."
3. "A white, cheesy substance called vernix caseosa will be on the skin."
4. "The genitals of the baby will be ambiguous."
Correct Answer: 1
Rationale 1: Downy fine hair called lanugo covers a 20-week fetus.
Rationale 2: Limb buds have developed by 35 days post-fertilization. At 20 weeks, the fetus will have well developed well differentiated arms and legs.
Rationale 3: Vernix caseosa forms at about 24 weeks. This fetus is only 20 weeks and will not have vernix.
Rationale 4: The genitals are apparent by 12 weeks after fertilization. This fetus would have had specifically male or female genitals 8 weeks ago.
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