The practical nurse (PN) is caring for an older client who is receiving chemotherapy for lung cancer. Which finding is the highest priority for the PN to report to the charge nurse? Reference ranges: Blood urea nitrogen (BUN): [Adult: 10 to 20 mg/dL or 3.6 to 7.1 mmol/L] Platelets: [150,000 to 400,000/mm3 or 150 to 400 x 109/L]

The finding that is the highest priority for the PN to report to the charge nurse is the blood urea nitrogen (BUN) level of 75 mg/dL or 12.9 mmol/L. This result indicates an elevated BUN level, which can be indicative of impaired kidney function. In a client receiving chemotherapy, an elevated BUN level may suggest chemotherapy-induced nephrotoxicity or other kidney-related complications. Prompt reporting is crucial to ensure appropriate intervention and management of the client's kidney function. B. While the platelet count of 135,000/mm3 or 135 x 109/L is slightly below the normal reference range, it does not pose an immediate life-threatening risk. However, it should still be monitored and reported to the healthcare team for ongoing assessment and evaluation. C. Decreased deep tendon reflexes may be an expected side effect of certain chemotherapy medications or a manifestation of neurotoxicity. While this finding should be documented and monitored, it is not as urgent as the elevated BUN level. D. Periodic nausea and vomiting are common side effects of chemotherapy, but they may also be indicative of other underlying issues such as dehydration, electrolyte imbalances, or gastrointestinal complications. While this finding should be addressed and managed, it is not the highest priority compared to the elevated BUN level.