The nurse is teaching the mother of a 9-month-old infant about administering liquid iron preparation. Which information should be included in the teaching?

Correct Answer: A

Rationale: The correct answer is A. Iron supplements can cause stools to turn black, which is a normal and harmless side effect. Iron is best absorbed on an empty stomach, although it can be given with food if gastrointestinal upset occurs. Vitamin C, not D, enhances iron absorption. Choice B is incorrect because Vitamin C enhances iron absorption, not Vitamin D. Choice C is incorrect as there is no need to mix liquid iron with saliva before swallowing. Choice D is incorrect because iron is best absorbed on an empty stomach.

Correct Answer: C

Rationale: The correct answer is C: Cigarette smoking. Discussing sensitive topics like cigarette smoking in the presence of a parent may inhibit the teenager's willingness to be open and honest. It's important to provide an opportunity for the teenager to speak privately with the healthcare provider. Choices A, B, and D are more general topics that can be discussed openly in front of the parent without compromising the teenager's privacy or comfort.

Correct Answer: A

Rationale: The correct answer is A: Transition from fetal to neonatal breathing. The most critical physiological change required of newborns at birth is the initiation of breathing. This transition is crucial for the newborn to start exchanging oxygen and carbon dioxide outside the womb, marking the beginning of their independent respiratory function. Choices B, C, and D are important aspects of newborn care but are not as immediately critical as the establishment of breathing for oxygenation and removal of carbon dioxide, which is essential for the newborn's survival and adaptation to extrauterine life.

Correct Answer: B

Rationale: The correct intervention to maintain the skin integrity of a preterm infant born at 30 weeks is to bathe the infant with sterile water. Bathing with sterile water or a neutral pH solution is recommended to protect the delicate skin of preterm infants, which is more permeable and prone to damage. Choices A, C, and D are incorrect as avoiding cleaning the skin may lead to hygiene issues, cleansing with alkaline-based soap can be harsh on the delicate skin, and thoroughly rinsing with plain water after bathing may not be as gentle and protective for preterm infants.

Correct Answer: B

Rationale: Binocularity, the ability to fixate on one visual field with both eyes simultaneously, is typically achieved by the age of 3 to 4 months. Achieving binocularity at 1 month is too early for most infants as their visual system is still developing. Similarly, 6 to 8 months and 12 months are beyond the normal age range for achieving binocularity, and delayed achievement could indicate potential issues like strabismus, which may lead to visual impairment if not addressed.