Which clinical finding in an older adult client with chronic kidney disease is a priority for collaboration with the primary health care provider?

In an older adult client with chronic kidney disease, a potassium level of 6 indicates hyperkalemia, which is a critical condition that can lead to severe complications, including cardiac arrhythmias and potential cardiac arrest. The normal range for potassium is typically between 3.5 to 5.0 mEq/L, so a level of 6 is significantly elevated.

Timely collaboration with the primary health care provider is essential in this scenario because hyperkalemia necessitates immediate medical intervention, including potential treatments such as medications, dietary changes, or even dialysis, depending on the severity and the patient's overall condition.

While other findings such as creatinine values of 20 and elevated blood pressure can also be concerning, hyperkalemia is an acute risk that requires prompt attention to prevent serious, life-threatening outcomes.