Nurse Veronica is teaching a group of parents about otitis media. When discussing why children are predisposed to this disorder, the nurse should mention the significance of which anatomical feature?

Correct Answer: B

Rationale: The Eustachian tubes are small passages that connect the middle ear to the back of the throat. In young children, these tubes are shorter, more horizontal, and more narrow than in adults, making them more prone to blockages and infections. When these tubes become blocked, usually due to factors like swelling from allergies or a cold, fluid can build up in the middle ear leading to otitis media or middle ear infection. Therefore, the anatomy and size of the Eustachian tubes play a significant role in the predisposition of children to otitis media.

Correct Answer: D

Rationale: Glyburide (DiaBeta) is a sulfonylurea medication used to treat type 2 diabetes mellitus by stimulating the pancreas to release more insulin. Taking glyburide at bedtime is recommended because it helps to ensure that the medication's peak action aligns with the natural rise in blood glucose levels in the early morning hours, which can help control fasting blood glucose levels. Additionally, taking glyburide in the evening reduces the risk of hypoglycemia during the day when the client may be more active and less likely to monitor blood glucose levels closely.

Correct Answer: C

Rationale: Hypokalemia is indicated in Ms. CC's decreased muscle tone and deep tendon reflexes. Potassium is an essential electrolyte for muscle function, including maintaining muscle tone and supporting proper nerve conduction for reflexes. When potassium levels are low, it can lead to muscle weakness, decreased muscle tone, and reduced deep tendon reflexes. With severe diarrhea, potassium is often lost along with fluids, leading to a potential electrolyte imbalance such as hypokalemia. Additionally, hypokalemia can cause cardiac arrhythmias, muscle cramps, and fatigue, further supporting the presence of this electrolyte imbalance in Ms. CC.

Correct Answer: C

Rationale: Placing an undershirt between the skin and the Pavlik harness is done to prevent skin abrasions and irritation caused by the harness rubbing directly against the skin. The undershirt acts as a protective layer, reducing the likelihood of skin sensitivity or damage due to the continuous contact with the harness. This is particularly important for infants or young children who may have delicate skin that is more prone to irritation. By using an undershirt, caregivers can help ensure greater comfort for the child while wearing the Pavlik harness and reduce the risk of any skin-related complications.

Correct Answer: C

Rationale: These milestones are typically achieved around 24 months.