Part 2 — Answer key

Compare your answers after you have finished Part 1.

1. You are settling a healthy newborn for sleep. Which sleep position is recommended for routine sleep to reduce the risk of sleep-related deaths?
   On the back
2. A typical pregnancy is counted as about 40 weeks from the first day of the last menstrual period (LMP), not from the day of conception.
   True
3. Which food is specifically avoided for most babies under 12 months because of the risk of infant botulism?
   Honey
4. A baby feels warm, so you take a rectal temperature. Which reading is a fever in an infant?
   100.4°F (38.0°C)
5. Tummy time is recommended only when a baby is awake and supervised.
   True
6. In most medical definitions used in baby trivia, a "newborn" is a baby in which age range?
   Birth to 28 days
7. In many medical and trivia contexts, a “newborn” refers to a baby in the first 28 days after birth.
   True
8. For most healthy babies, what should be the main source of nutrition for about the first 6 months?
   Breast milk or infant formula
9. For routine sleep, current guidance recommends a firm, flat sleep surface with only a fitted sheet, and no loose blankets or soft items.
   True
10. A typical normal breathing rate for a newborn can be about 30 to 60 breaths per minute.
    True
11. When you gently stroke a baby’s cheek and they turn their head toward the touch with an open mouth, that reflex is called what?
    Rooting reflex
12. Newborns should be given extra water between feeds to prevent dehydration.
    False
13. That thick, yellowish “first milk” produced in the early days after birth has a special name. What is it?
    Colostrum
14. A tired parent asks for the safest sleep setup. Which choice matches current guidance most closely?
    Same room as the parent, on a separate sleep surface
15. In a typical 28-day cycle, ovulation often happens around two weeks after the first day of the last menstrual period.
    True
16. Why is a vitamin K shot commonly given soon after birth?
    To prevent bleeding problems
17. Most babies reliably show a social smile within the first 24 hours after birth.
    False
18. You arrive at a relative’s house and realize there is no crib. Where is the safest place for a baby’s routine sleep in this situation?
    In a portable crib or bassinet with a firm mattress
19. Spit-up always means something is wrong, such as an allergy, reflux disease, or an infection.
    False
20. It is common for many newborns to lose some weight in the first few days after birth.
    True
21. A loud sound makes a young baby fling their arms out, then pull them back in, sometimes with crying. What reflex is this?
    Moro reflex
22. Your baby has just started rolling from back to stomach. What is the safest change to make for sleep?
    Stop swaddling and use a wearable blanket or sleep sack
23. A 5-month-old watches you eat and tries to grab your spoon. When do most babies become developmentally ready for solids?
    Around 6 months, when they have good head control
24. Gestational age and fetal age are the same measurement.
    False
25. A parent asks what to do with a newborn’s umbilical stump at home. Which advice is most consistent with common guidance?
    Keep it clean and dry, and let it fall off on its own
26. Newborns can breathe through their nose and mouth equally well.
    False
27. Your baby falls asleep in a car seat after you get home, and the car seat is sitting on the floor. What should you do for routine sleep?
    Move the baby to a firm, flat sleep surface as soon as practical
28. You are cutting fruit for a 10-month-old. Which option is a classic choking hazard unless modified?
    Whole grapes
29. At a 6-month checkup, which skill is most typical for many babies?
    Rolling and sitting with support
30. Most fetal weight gain happens in the later part of pregnancy rather than early in the first trimester.
    True
31. A baby’s soft spot (fontanelle) can sometimes gently pulse, and that can be normal.
    True
32. Sleep positioners and wedges are recommended to keep babies in a safer sleep posture.
    False
33. You are making a bottle and you are tired. What is the safest approach to mixing powdered formula?
    Follow the exact scoop-to-water directions on the label
34. Parents often notice their baby startles less over time. Around what age does the Moro (startle) reflex commonly fade for many babies?
    Around 3 to 4 months
35. A baby has fewer wet diapers than usual and seems unusually sleepy. Which additional sign would most strongly raise concern for dehydration?
    A sunken soft spot
36. Your baby is about 5 and a half months old and keeps reaching for your spoon at dinner. Which sign most strongly suggests readiness to start complementary foods?
    Sits with support and can bring food to mouth
37. Someone says they are 12 weeks pregnant (gestational age). About how many weeks has it typically been since conception?
    About 10 weeks
38. At around 9 months, which gross-motor skill is most typical for many babies?
    Sitting without support
39. Why do many breastfed babies still need vitamin D supplementation?
    Breast milk is low in vitamin D
40. Your baby can roll from back to belly and belly to back. What should you do when you put them down to sleep?
    Always place baby on their back, and if they roll you can leave them
41. A newborn looks more yellow today and is harder to wake for feeds. What is the best next step?
    Call the baby’s clinician promptly for advice
42. A caregiver says they will avoid peanut and egg until age 2 to “prevent allergies.” What is the more evidence-aligned approach for many babies?
    Introduce common allergens once the baby is ready for solids
43. A parent offers a pacifier at bedtime and asks if it is okay. What is the best summary of common guidance?
    Pacifiers can be offered for sleep, and may reduce SIDS risk
44. A 7-week-old has a rectal temperature of 100.4°F (38.0°C). They look a bit fussier than usual. What should you do?
    Call a clinician promptly, young infants with fever need urgent guidance
45. Your baby drops a toy behind the couch cushion and then looks for it as if it still exists. This shift is tied to object permanence, which typically strengthens most during what age range?
    8 to 12 months
46. A baby spits up frequently, and someone suggests an inclined sleeper because it is “safer for reflux.” What is the safest sleep advice for routine sleep?
    Keep routine sleep on a firm, flat surface on the back
47. A baby is born at 36 weeks of gestation. In common medical categories, this is considered which?
    Late preterm