Correct Answer: B

Rationale: For a client on a continuous tube-feeding regimen, stopping tube feedings for two hours to administer this medication may compromise the client's nutritional status. This interruption can lead to inadequate nutrient intake, affecting the client's overall nutritional well-being. The other choices are less relevant in this situation. Type II diabetes does not directly impact the administration of phenytoin through a J-tube. Fluid restriction would not prevent the temporary interruption of tube feedings for medication administration. The form of phenytoin provided by the pharmacy does not impact the need to discuss the order with the physician regarding the client's continuous tube-feeding regimen.

Correct Answer: B

Rationale: The correct answer is 'not pulling to a standing position.' If an 11-12-month-old child is unable to pull to a standing position, it can indicate a risk for developmental dysplasia of the hip. By 15 months of age, children should be walking, so delayed standing can be a red flag. The Trendelenburg sign is associated with gluteus medius muscle weakness, not hip dysplasia, making choice C incorrect. The Ortolani sign is used to detect congenital hip subluxation or dislocation, not developmental dysplasia, making choice D incorrect.

Correct Answer: A

Rationale: The correct answer is to change the intravenous tubing on total parenteral nutrition solutions every 24 hours. This frequency is necessary due to the high risk of bacterial growth associated with TPN solutions. Changing the tubing every 24 hours helps prevent contamination and bloodstream infections. Choices B, C, and D are incorrect because waiting longer intervals increases the risk of introducing harmful bacteria into the patient's system, leading to potentially severe complications.

Correct Answer: D

Rationale: When considering hormone replacement therapy for a menopausal woman, unexplained vaginal bleeding should be recognized as a contraindication. This is because it could be indicative of a serious underlying condition that needs investigation before initiating hormone therapy. A family history of stroke, by itself, is not a contraindication for hormone replacement therapy, unless the woman herself has a history of stroke or blood-clotting events. Ovaries removed before age 45 may actually increase the likelihood of needing hormone replacement therapy due to early menopause. Frequent hot flashes and night sweats, on the other hand, are symptoms that can be relieved by hormone replacement therapy, making them a potential indication rather than a contraindication.

Correct Answer: C

Rationale: An 18-month-old child should have approximately 12 teeth. Children typically start getting teeth around 6 months of age. By subtracting 6 from the number of months in the child's age, you can calculate the expected number of teeth. For an 18-month-old child, 18 - 6 = 12 teeth. Therefore, the correct answer is 12 teeth. Choices A, B, and D are incorrect because they do not align with the expected dental development in an 18-month-old child.