Uremia, Fluid Overload, Electrolytes, and Acid-Base Context
Key Takeaways
- Uremia can cause nonspecific symptoms, so changes from baseline matter.
- Fluid overload can show as high blood pressure, edema, lung symptoms, or large interdialytic gains.
- Electrolyte and acid-base problems can become urgent, especially when symptoms involve weakness, chest discomfort, palpitations, or mental status change.
- The technician's role is to observe, measure, report, document, and follow protocol.
Common physiologic problems in ESRD
Uremia means waste products have accumulated because kidney clearance is inadequate. Symptoms may include nausea, poor appetite, itching, fatigue, confusion, or a general feeling of being unwell.
Fluid overload occurs when intake and retained water exceed what the body can tolerate. It may appear as edema, elevated blood pressure, shortness of breath, crackles if assessed by licensed staff, or rapid weight gain between treatments.
Electrolyte and acid-base problems are also important. Potassium imbalance can be associated with weakness, palpitations, or dangerous rhythm problems. Acidosis can contribute to fatigue, breathing changes, or general instability.
Safe pattern recognition
| Finding | Dialysis context | Technician-safe response |
|---|---|---|
| Missed treatments, nausea, confusion | Uremia or electrolyte concern | Notify licensed staff before routine start. |
| Large gain, edema, dyspnea | Fluid overload concern | Verify weight and order, report, document. |
| Dizziness, cramps, falling BP | UF may exceed vascular refill | Follow hypotension protocol and alert RN. |
| Chest pain, severe dyspnea, mental change | Emergency concern | Call for help and follow emergency procedure. |
Do not treat symptoms as normal just because dialysis patients commonly have them. The exam favors answers that protect the patient, communicate early, and stay within scope.
A patient missed two treatments and now reports severe nausea and new confusion before setup. What is the best CCHT action?
Which finding is most concerning for a possible electrolyte-related problem that should be reported promptly?
During treatment, a patient becomes dizzy and the blood pressure drops after aggressive fluid removal. What concept best explains the problem?