CPST Infant & Newborn Transportation Safety 2 — Questions and Answers
Question 1: What is a car bed, and for which infants is it typically recommended?
- A restraint that allows an infant to lie flat, recommended for preterm infants who cannot tolerate a semi-upright position (Correct answer)
- A padded carrier used to transport infants in grocery carts
- A rear-facing seat with an extra-wide shell for larger newborns
- A booster-style device for infants weighing under 5 pounds
Correct answer: A restraint that allows an infant to lie flat, recommended for preterm infants who cannot tolerate a semi-upright position
A car bed is a federally approved restraint that allows an infant to lie flat and is designed for preterm or medically fragile newborns who experience breathing or heart-rate issues in a semi-upright position.
Question 2: Before a premature or low-birth-weight infant is discharged from the NICU, what car seat evaluation is recommended?
- A car seat tolerance screening or car seat challenge test (Correct answer)
- A standard newborn hearing screening in the car seat
- A vehicle vibration test conducted by a mechanic
- A weight-based fit assessment by a pediatrician only
Correct answer: A car seat tolerance screening or car seat challenge test
NICU guidelines recommend a car seat tolerance screening (also called a car seat challenge) to verify that preterm infants can maintain stable oxygen levels and heart rate while in a semi-upright car seat position.
Question 3: What is the minimum weight requirement for most infant-only car seats sold in the United States?
- 4 to 5 pounds (approximately 1.8 to 2.3 kg) (Correct answer)
- 8 pounds (approximately 3.6 kg)
- 10 pounds (approximately 4.5 kg)
- There is no minimum weight — all newborns can use any infant seat
Correct answer: 4 to 5 pounds (approximately 1.8 to 2.3 kg)
Most infant-only seats have a minimum weight of 4–5 lbs; parents of very small or premature babies must verify their infant meets the seat's minimum weight requirement.
Question 4: What does the 'one-finger' space check at the harness crotch buckle evaluate in a newborn?
- That the crotch strap is not too loose, which could allow the baby to submarine under the harness (Correct answer)
- That the buckle can be released quickly in an emergency
- That the harness webbing is routed correctly through the slots
- That the seat is positioned at the correct recline angle
Correct answer: That the crotch strap is not too loose, which could allow the baby to submarine under the harness
Checking that no more than one finger fits between the crotch strap and the baby's body helps prevent submarining, where the infant slides under the harness in a crash.
Question 5: A caregiver wants to use a thick, puffy snowsuit on their newborn in the car seat during winter. What should a CPST advise?
- Remove the bulky outerwear before buckling; cover the baby with a blanket over the harness instead (Correct answer)
- Buckle the harness over the snowsuit and tighten it firmly
- Use only snowsuits certified by the car seat manufacturer
- Loosen the harness by two clicks to accommodate the extra bulk
Correct answer: Remove the bulky outerwear before buckling; cover the baby with a blanket over the harness instead
Bulky outerwear compresses in a crash, creating slack in the harness and increasing the risk of ejection; the infant should be buckled without the coat and then covered with a blanket.
Question 6: When can an infant safely transition from a rear-facing-only infant seat to a convertible car seat?
- When the infant exceeds the infant seat's height or weight limit, whichever comes first (Correct answer)
- When the infant can sit up independently without support
- At exactly 12 months of age
- When the infant's knees touch the vehicle seat back
Correct answer: When the infant exceeds the infant seat's height or weight limit, whichever comes first
Infants should move to a convertible seat (still rear-facing) when they outgrow the infant seat's height or weight limit — age alone is not the determining factor.
CPST Infant & Newborn Transportation Safety 2
What is a car bed, and for which infants is it typically recommended?