Correct Answer: A

Rationale: The correct answer is the importance of taking prenatal vitamins. Prenatal vitamins are crucial for the health of both the mother and the baby as they provide essential nutrients required for fetal development. While handling common discomforts of pregnancy (choice B) is important for maternal well-being, it does not directly impact the health of the baby. Preparing for labor and delivery (choice C) focuses more on the delivery process rather than the overall health of the mother and baby during pregnancy. Breastfeeding techniques (choice D) are relevant postpartum, not during the prenatal period, and do not directly impact the health of the baby during pregnancy.

Correct Answer: D

Rationale: Using sterile technique when accessing the catheter is crucial to prevent infection in clients with a central venous catheter. This action helps maintain asepsis and reduces the risk of introducing pathogens into the catheter system. Flushing the catheter with heparin helps prevent occlusion but is not as crucial as ensuring sterile technique. Changing the dressing at the insertion site is important for assessing the site's condition but does not directly impact the administration of the antibiotic. Checking for blood return is essential to ensure proper catheter function, but sterile technique takes precedence to prevent infections.

Correct Answer: D

Rationale: The correct answer is D. Drinking at least 3 liters of fluid each day may be contraindicated for a client with CHF due to the risk of fluid overload. This can exacerbate heart failure symptoms and lead to complications. Options A, B, and C are all appropriate statements that demonstrate understanding of managing CHF and seeking appropriate medical attention when needed.

Correct Answer: A

Rationale: The correct answer is A: motor vehicle accidents. Motor vehicle accidents are a significant cause of spinal cord injuries among adolescents due to the high impact forces involved. While violent assault, sports injuries, and falls can also lead to spinal cord injuries, statistics show that motor vehicle accidents are a leading cause in this age group. Educating adolescents about the risks and preventive measures related to motor vehicle accidents is crucial in promoting their safety and well-being.

Correct Answer: C

Rationale: The slightly yellow color of the sclera is a normal racial variation found in the African-American population. Blue sclerae (Choice A) are associated with osteogenesis imperfecta, not a normal racial variation. Brown macules on the sclerae (Choice B) may indicate issues like melanoma or melanosis but are not a normal racial variation. Conjunctival pallor (Choice D) suggests anemia or decreased blood flow but is not a normal racial variation.