Nursing Elites

1. A nurse is caring for a preterm newborn who is in an incubator to maintain a neutral thermal environment. The father of the newborn asks the nurse why this is necessary. Which of the following responses should the nurse make?

• A. Preterm newborns have a smaller body surface area than normal newborns.
• B. The added brown fat layer in a preterm newborn reduces his ability to generate heat.
• C. Preterm newborns lack adequate temperature control mechanisms.
• D. The heat in the incubator rapidly dries the sweat of preterm newborns.

Correct answer: C

Rationale: The correct answer is C because preterm newborns have immature temperature regulation mechanisms, making it difficult for them to maintain their body temperature. An incubator helps maintain a stable thermal environment. Choice A is incorrect as the body surface area is not the primary reason for needing an incubator. Choice B is incorrect because brown fat in preterm newborns actually helps generate heat. Choice D is incorrect as the purpose of the incubator is not to dry sweat but to regulate the newborn's temperature.

2. When assisting a client with breastfeeding, which of the following reflexes will promote the newborn to latch?

• A. Babinski
• B. Rooting
• C. Moro
• D. Stepping

Correct answer: B

Rationale: The correct answer is B: Rooting. The rooting reflex is crucial in newborns as it helps them locate the nipple for feeding. This reflex involves turning the head towards a stimulus that touches the cheek or mouth, aiding in the process of latching onto the breast for breastfeeding. The Babinski reflex is the fanning out and curling of the toes when the sole of the foot is stroked, the Moro reflex is the startle reflex in response to a sudden noise or movement, and the stepping reflex is the appearance of taking steps when an infant is held upright with feet touching a solid surface. Therefore, choices A, C, and D are incorrect as they do not play a direct role in promoting a newborn to latch during breastfeeding.

3. A client is in labor and reports increasing rectal pressure. She is experiencing contractions 2 to 3 minutes apart, each lasting 80 to 90 seconds, and a vaginal examination reveals that her cervix is dilated to 9 cm. The client is in which of the following phases of labor?

• A. Active
• B. Transition
• C. Latent
• D. Descent

Correct answer: B

Rationale: The client is in the transition phase of labor, characterized by cervical dilatation of 8 to 10 cm and contractions every 2 to 3 minutes, each lasting 45 to 90 seconds. In this phase, the cervix is nearly fully dilated, preparing the client for the pushing stage. The active phase of labor typically involves cervical dilatation from 4 to 7 cm, whereas the latent phase is the early phase of labor when the cervix dilates from 0 to 3 cm. Descent is not a phase of labor but rather refers to the movement of the fetus through the birth canal during the second stage of labor.

4. When caring for a client suspected of having hyperemesis gravidarum, which finding is a manifestation of this condition?

• A. Hgb 12.2 g/dL
• B. Urine ketones present
• C. Alanine aminotransferase 20 IU/L
• D. Blood glucose 114 mg/dL

Correct answer: B

Rationale: The correct answer is B: Urine ketones present. The presence of urine ketones indicates dehydration, which is a common manifestation of hyperemesis gravidarum. Hyperemesis gravidarum is characterized by severe nausea, vomiting, weight loss, and electrolyte imbalances due to dehydration. Monitoring for ketonuria helps assess the degree of dehydration in clients with this condition. Choices A, C, and D are incorrect because hemoglobin level, alanine aminotransferase level, and blood glucose level are not specific manifestations of hyperemesis gravidarum. While these laboratory values may be abnormal in some cases, they are not typically used to diagnose or assess the condition.

5. A nurse is admitting a term newborn following a cesarean birth. The nurse observes that the newborn's skin is slightly yellow. This finding indicates the newborn is experiencing a complication related to which of the following?

• A. Maternal/newborn blood group incompatibility
• B. Absence of vitamin K
• C. Physiologic jaundice
• D. Maternal cocaine abuse

Correct answer: A

Rationale: The yellow skin observed in the newborn suggests jaundice. Maternal/newborn blood group incompatibility is a common cause of jaundice in newborns. This occurs when the mother and baby have different blood types, leading to the baby's immune system attacking the red blood cells, causing jaundice. Physiologic jaundice, which is a normal process due to the breakdown of red blood cells in newborns, typically presents after the first 24 hours of life. Absence of vitamin K leads to bleeding issues, not jaundice. Maternal cocaine abuse does not directly cause jaundice in newborns.

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