The nurse is planning health teaching for a client starting on donepezil for Alzheimer’s disease (AD). For which side effect will the nurse teach the family to monitor?

Choice A Reason:

Constant bubbling in the water seal chamber of a chest drainage system typically indicates an air leak. This can occur if there is a break in the system, allowing air to enter. The air leak could be from the chest tube insertion site, the tubing, or the drainage system itself. Identifying and correcting the source of the air leak is crucial to ensure the system functions properly and the patient’s condition does not worsen.

Choice B Reason:

A tension pneumothorax is a life-threatening condition where air accumulates in the pleural space and cannot escape, leading to increased pressure on the lungs and other thoracic structures. While a tension pneumothorax can cause significant respiratory distress, it is not typically indicated by constant bubbling in the water seal chamber. Instead, signs of tension pneumothorax include tracheal deviation, hypotension, and severe respiratory distress.

Choice C Reason:

A kink in the tubing of a chest drainage system can obstruct the flow of air and fluid, but it does not cause constant bubbling in the water seal chamber. Instead, a kink would likely result in a lack of drainage or intermittent bubbling as the obstruction temporarily blocks and then allows passage of air or fluid.

Choice D Reason:

Increased drainage in a chest tube system indicates that more fluid or air is being removed from the pleural space, but it does not cause constant bubbling in the water seal chamber. Increased drainage might be seen in cases of hemothorax or pleural effusion, where large amounts of fluid are present.

Choice E Reason:

Tidaling refers to the normal rise and fall of water in the water seal chamber with the patient’s respiratory cycle. It indicates that the chest tube is patent and functioning correctly. Absence of tidaling could suggest that the lung has fully re-expanded or that there is an obstruction in the system. However, tidaling itself does not cause constant bubbling.

Assessment: Patient had 2 semi-formed bowel movements 1 hour after administration of the medication

Choice A Reason:

Assessment: Patient denies vomiting

This choice is not directly related to the effectiveness of Kayexalate. Vomiting can be a symptom of hyperkalemia, but the absence of vomiting does not indicate that the medication is working. Kayexalate works by binding potassium in the intestines and removing it through the stool, so the presence of bowel movements is a more direct indicator of its effectiveness.

Choice B Reason:

ECG: Flattening of QRS complex angle

Flattening of the QRS complex angle is not a typical ECG change associated with hyperkalemia or its treatment. Hyperkalemia typically causes widening of the QRS complex, and effective treatment would normalize this. Therefore, this choice is not correct.

Choice C Reason:

ECG: Widening of the QRS complex

Widening of the QRS complex is a sign of hyperkalemia, not its resolution. If the medication is effective, the QRS complex should return to a normal width. Therefore, this choice is not correct.

Choice D Reason:

Assessment: Patient consumed 60% of meal

While nutritional intake is important, it is not a direct indicator of the effectiveness of Kayexalate. The medication’s effectiveness is better assessed by changes in potassium levels and related symptoms, not by meal consumption.

Choice E Reason:

Assessment: Patient denies nausea

Similar to vomiting, nausea can be a symptom of hyperkalemia, but the absence of nausea does not indicate that the medication is working. The effectiveness of Kayexalate is better assessed by the presence of bowel movements and changes in potassium levels.

Choice F Reason:

Assessment: Patient had 2 semi-formed bowel movements 1 hour after administration of the medication

This is the correct answer. Kayexalate works by binding potassium in the intestines and removing it through the stool. The presence of bowel movements indicates that the medication is working to remove potassium from the body. This is a direct and relevant assessment finding.

Choice G Reason:

ECG: Shortening of P wave duration

Shortening of the P wave duration is not a typical ECG change associated with hyperkalemia or its treatment. Therefore, this choice is not correct.

Choice H Reason:

Assessment: Patient denies pain

Pain is not a typical symptom of hyperkalemia, and its absence does not indicate that the medication is working. Therefore, this choice is not correct.

Choice I Reason:

ECG: Reduction of T wave amplitude

Reduction of T wave amplitude can be a sign of hypokalemia, not hyperkalemia. Effective treatment of hyperkalemia would normalize the T wave amplitude, not reduce it. Therefore, this choice is not correct.