💪 Rhabdomyolysis Management
This tool frames rhabdomyolysis management by CK level, hyperkalemia, and renal function, directing aggressive fluids, monitoring, and dialysis indications.
Clinical takeaway
Mannitol and loop diuretics are never used before volume repletion because they can worsen renal perfusion. (original synthesis · not guideline verbatim)
Loading calculator…
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
When to use
Use to anchor early aggressive fluid resuscitation, identify hyperkalemia as the most urgent threat, and decide when dialysis is needed.
How it works
CK > 1000 → aggressive 0.9% saline, urine output ≥ 200–300 mL/h until CK < 1000/myoglobinuria clears. Hyperkalemia → treat aggressively. Refractory hyperkalemia/severe AKI/volume overload → dialysis. Alkalinization/mannitol not routine.
Key points
- Mannitol and loop diuretics are never used before volume repletion because they can worsen renal perfusion. (original synthesis · not guideline verbatim)
- Hyperkalemia is the most pressing threat and drives continuous cardiac monitoring.
- Hypocalcemia is generally left uncorrected unless symptomatic or accompanying severe hyperkalemia.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| CK level | CK > 1000 U/L or > 5× ULN |
|---|---|
| Hyperkalemia | Present |
| Refractory hyperkalemia / severe AKI / volume overload | Present |
→DispositionAggressive fluids + manage hyperkalemia
- Fluids (cornerstone)：Immediate aggressive IV fluids (0.9% normal saline), target urine output ≥ 200–300 mL/h (~3 mL/kg/h), continued until CK falls < 1000 U/L or myoglobinuria clears; do not use mannitol/loop diuretics before fluid repletion (can worsen renal perfusion), diuresis only after adequate volume repletion for volume overload
- Hyperkalemia：Hyperkalemia is the most pressing threat: manage as hyperkalemia (calcium to stabilize the myocardium, glucose + insulin and bicarbonate to shift, potassium binders/dialysis to remove), with continuous cardiac monitoring
- Monitoring：Electrolytes (potassium/calcium/phosphate/magnesium) every 4–6 h, serial CK/myoglobin/renal function, blood gas, ECG; hypocalcemia generally not corrected (unless symptomatic or severe hyperkalemia), hyperphosphatemia treated with phosphate binders
| CK level | Mildly elevated (< 1000, may still rise) |
|---|---|
| Hyperkalemia | Absent |
| Refractory hyperkalemia / severe AKI / volume overload | Absent |
→DispositionAggressive fluids + monitoring
- Fluids (cornerstone)：Mildly elevated CK may still rise (peaks at 24–120 h): give fluids and serially monitor CK and renal function, adjust by volume and urine output; do not use mannitol/loop diuretics before fluid repletion (can worsen renal perfusion), diuresis only after adequate volume repletion for volume overload
- Hyperkalemia：Closely monitor potassium (every 4–6 h), watch for lethal hyperkalemic arrhythmias
- Monitoring：Electrolytes (potassium/calcium/phosphate/magnesium) every 4–6 h, serial CK/myoglobin/renal function, blood gas, ECG; hypocalcemia generally not corrected (unless symptomatic or severe hyperkalemia), hyperphosphatemia treated with phosphate binders
Frequently asked questions
- What is Rhabdomyolysis Management?
- This tool frames rhabdomyolysis management by CK level, hyperkalemia, and renal function, directing aggressive fluids, monitoring, and dialysis indications.
- How is Rhabdomyolysis Management calculated? What is the core formula?
- CK > 1000 → aggressive 0.9% saline, urine output ≥ 200–300 mL/h until CK < 1000/myoglobinuria clears. Hyperkalemia → treat aggressively. Refractory hyperkalemia/severe AKI/volume overload → dialysis. Alkalinization/mannitol not routine.
- When is Rhabdomyolysis Management used?
- Use to anchor early aggressive fluid resuscitation, identify hyperkalemia as the most urgent threat, and decide when dialysis is needed.
- What are the key clinical points for Rhabdomyolysis Management?
- Mannitol and loop diuretics are never used before volume repletion because they can worsen renal perfusion. (original synthesis · not guideline verbatim) Hyperkalemia is the most pressing threat and drives continuous cardiac monitoring. Hypocalcemia is generally left uncorrected unless symptomatic or accompanying severe hyperkalemia.
- What are the limits and cautions when using Rhabdomyolysis Management?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Rhabdomyolysis Management calculated in practice? Can you show a worked example?
- Inputs: CK level CK > 1000 U/L or > 5× ULN, Hyperkalemia Present, Refractory hyperkalemia / severe AKI / volume overload Present → Result: Disposition Aggressive fluids + manage hyperkalemia（Fluids (cornerstone): Immediate aggressive IV fluids (0.9% normal saline), target urine output ≥ 200–300 mL/h (~3 mL/kg/h), continued until CK falls < 1000 U/L or myoglobinuria clears; do not use mannitol/loop diuretics before fluid repletion (can worsen renal perfusion), diuresis only after adequate volume repletion for volume overload, Hyperkalemia: Hyperkalemia is the most pressing threat: manage as hyperkalemia (calcium to stabilize the myocardium, glucose + insulin and bicarbonate to shift, potassium binders/dialysis to remove), with continuous cardiac monitoring, Monitoring: Electrolytes (potassium/calcium/phosphate/magnesium) every 4–6 h, serial CK/myoglobin/renal function, blood gas, ECG; hypocalcemia generally not corrected (unless symptomatic or severe hyperkalemia), hyperphosphatemia treated with phosphate binders） Inputs: CK level Mildly elevated (< 1000, may still rise), Hyperkalemia Absent, Refractory hyperkalemia / severe AKI / volume overload Absent → Result: Disposition Aggressive fluids + monitoring（Fluids (cornerstone): Mildly elevated CK may still rise (peaks at 24–120 h): give fluids and serially monitor CK and renal function, adjust by volume and urine output; do not use mannitol/loop diuretics before fluid repletion (can worsen renal perfusion), diuresis only after adequate volume repletion for volume overload, Hyperkalemia: Closely monitor potassium (every 4–6 h), watch for lethal hyperkalemic arrhythmias, Monitoring: Electrolytes (potassium/calcium/phosphate/magnesium) every 4–6 h, serial CK/myoglobin/renal function, blood gas, ECG; hypocalcemia generally not corrected (unless symptomatic or severe hyperkalemia), hyperphosphatemia treated with phosphate binders）