The nurse is caring for an 18-hour-old newborn who has not voided for the first time yet. What is the nurse's priority action?

Choice A rationale:

The fit of the newborn's clothes is not a reliable indicator of hydration. It may vary based on the clothing size or style and does not give a direct measure of the newborn's hydration status. This choice is not appropriate for evaluating hydration and is therefore incorrect.

Choice B rationale:

The number of wet diapers per day is an essential measure for assessing a newborn's hydration. In the first few days after birth, the baby should have at least one wet diaper for each day of life (e.g., one wet diaper on day one, two on day two, etc.). Afterward, the newborn should have around 6-8 wet diapers per day, which indicates adequate hydration. This choice is appropriate and the correct answer.

Choice C rationale:

How often the newborn cries can be influenced by various factors, including hunger, discomfort, or sleepiness. While crying can indicate the baby's needs, it is not a specific or accurate measure of hydration status. Therefore, this choice is not appropriate for evaluating hydration and is incorrect.

Choice D rationale:

The newborn's skin turgor is a measure of skin elasticity, commonly used in adults to assess hydration. However, it is not a reliable indicator of hydration in newborns, as their skin is more elastic and different from adult skin. Skin turgor is not a suitable parameter to evaluate newborn hydration, making this choice incorrect.

"This is a caput succedaneum, which is a collection of fluid from the pressure of the vacuum extractor.”.

Choice A rationale:

A Mongolian spot is a benign, flat, bluish-gray pigmented area often found on the sacral or gluteal area of some newborns with darker skin tones. It is not related to the swelling on the newborn's head caused by vacuum extraction.

Choice B rationale:

A caput succedaneum is a localized swelling on the baby's scalp that occurs due to pressure from the vacuum extractor during delivery. It is typically soft and may cross the suture lines. This explanation accurately describes the swelling the baby has on his head.

Choice C rationale:

Erythema toxicum is a common rash that appears as small red bumps with white or yellow centers. It is a benign and self-resolving condition that does not cause swelling on the head or involve the suture lines.

Choice D rationale:

A cephalhematoma is a collection of blood between the skull and the periosteum that does not cross the suture lines. It is caused by trauma during birth and may take weeks to months to resolve. This does not match the description of the swelling caused by vacuum extraction.