A nurse is providing teaching to a client who has a new diagnosis of fibromyalgia. Which of the following client statements indicates an understanding of the teaching?

Choice A rationale:
Providing a urine sample to determine therapeutic levels of phenytoin is not typically a part of routine discharge instructions. While monitoring of phenytoin levels is important, it's usually done through blood tests, and the frequency of testing is determined by the healthcare provider based on individual patient factors.

Choice C rationale:
Bleeding gums are not a common side effect of phenytoin. While some individuals might experience gum tenderness or overgrowth, significant bleeding is not expected.

Choice D rationale:
Antacids can actually interfere with the absorption of phenytoin, potentially reducing its effectiveness. Therefore, it's generally not recommended to take antacids regularly while on phenytoin therapy. If a patient needs to take an antacid for occasional heartburn or indigestion, it's best to take it at least 2 hours before or after the phenytoin dose.

Choice A rationale:
Coughing and deep breathing are essential for mobilizing and removing secretions from the airways, which is crucial for improving airway clearance in patients with pneumonia. These techniques help to loosen mucus and bring it up from the lungs, allowing it to be expelled through coughing.
Hydration maintenance is also critical because it helps to thin secretions, making them easier to cough up. Adequate hydration helps to keep mucus moist and less sticky, which promotes easier expectoration.
Choice B rationale:
Keeping the head of the bed elevated can help to improve oxygenation and reduce the work of breathing, but it does not directly address the issue of airway clearance. It may be a helpful adjunct intervention, but it's not the priority for this specific nursing diagnosis.
Choice C rationale:
Preparation for insertion of a tracheostomy tube is a more invasive intervention that may be necessary in severe cases of airway obstruction, but it is not the first-line intervention for ineffective airway clearance related to pneumonia. It would be considered if other measures fail to maintain adequate ventilation.

Choice D rationale:
Providing supplemental oxygen can help to improve oxygenation in patients with pneumonia, but it does not directly address the issue of airway clearance. It's important to support oxygenation, but it's not the primary intervention to clear secretions.