Which option represents a classic sign of hemolysis in the dialysis circuit?

Which option represents a classic sign of hemolysis in the dialysis circuit?

• A. Bright red blood in the arterial line
• B. Dark urine
• C. Pain at venipuncture
• D. Cranberry juice colored blood in the venous line

Answer: (D)

Hemolysis in the dialysis circuit causes red blood cells to rupture, releasing free hemoglobin into the plasma. This color change of the blood in the circuit, especially when observed in the venous line, is described as cranberry juice colored blood and is a classic indicating sign of hemolysis. The other options don’t reflect this process: bright red blood in the arterial line is simply oxygenated arterial blood and not a sign of RBC destruction; dark urine is a patient symptom outside the circuit; pain at venipuncture points to needle or infiltration issues rather than RBC destruction. If you notice cranberry juice colored blood in the venous line, it’s an important red flag to stop dialysis and assess the circuit for possible causes of hemolysis.

Hemolysis in the dialysis circuit causes red blood cells to rupture, releasing free hemoglobin into the plasma. This color change of the blood in the circuit, especially when observed in the venous line, is described as cranberry juice colored blood and is a classic indicating sign of hemolysis. The other options don’t reflect this process: bright red blood in the arterial line is simply oxygenated arterial blood and not a sign of RBC destruction; dark urine is a patient symptom outside the circuit; pain at venipuncture points to needle or infiltration issues rather than RBC destruction. If you notice cranberry juice colored blood in the venous line, it’s an important red flag to stop dialysis and assess the circuit for possible causes of hemolysis.