A nurse is collecting data from an older adult client who is receiving ondansetron IV, has a history of diabetes mellitus and cardiac myopathy, and is receiving chemotherapy to treat cancer. For which of the following adverse effects of ondansetron should the nurse monitor? (Select all that apply)

A. Using a filter needle is indeed a recommended practice when withdrawing medication from an ampule. This is because filter needles are designed to prevent glass particles from being drawn into the syringe after breaking the ampule.

B. Ampules should not be bent to open them. The proper method involves using a gauze or an ampule opener to snap the neck of the ampule away from the body. Bending the ampule can lead to shards of glass, risking injury to the nurse or contamination of the medication.

C. The ampule should be tapped gently to ensure all medication is in the lower portion before opening.

D. Withdrawing medication from the center of the ampule is the correct action because it ensures that the needle does not touch the broken glass edges, which could contaminate the medication or dull the needle.

B. Daily weight measurements are a practical and effective method to assess fluid balance. Changes in weight can reflect fluid retention or loss. Daily weighing is particularly useful for monitoring fluid status in patients with known or suspected fluid excess. It helps detect trends over time and guides adjustments in fluid management.

A. While diagnostic tests are crucial for assessing underlying causes and complications of fluid imbalance, they do not directly provide a real-time assessment of fluid balance or volume overload.

C. Monitoring IV fluid intake provides information on the amount of fluid input but does not directly indicate how the patient's body is handling or retaining that fluid. It complements other methods like daily weight measurements.

D. Vital signs are essential for assessing the hemodynamic status and response to fluid therapy but are not specific enough to quantify fluid balance or detect mild fluid excess without other signs.