Mannitol ICP Management Dosing Calculator

Calculates mannitol dosing for elevated intracranial pressure (ICP). Dose: 0.25–1 g/kg IV over 20 minutes; repeat every 4–6 hours as needed. Hold if serum osmolality >320 mOsm/kg or serum sodium >155 mEq/L (risk of renal failure and rebound ICP). Use 20% or 25% mannitol solution. Foley catheter required. Monitor serum electrolytes and osmolality every 4–6 hours.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
Advertisement

How to Use

Enter the values for the scenario you are assessing. Calculates mannitol dosing for elevated intracranial pressure (ICP). Dose: 0.25–1 g/kg IV over 20 minutes; repeat every 4–6 hours as needed. Hold if serum osmolality >320 mOsm/kg or serum sodium >155 mEq/L (risk of renal failure and rebound ICP). Use 20% or 25% mannitol solution. Foley catheter required. Monitor serum electrolytes and osmolality every 4–6 hours. Use the mannitol icp result to inform your calculation.

Related Calculators

Dexamethasone Cerebral Edema

Medical

Frequently Asked Questions