MgSO₄ Seizure Prevention

IV magnesium sulfate infusion sim for eclamptic seizure prevention, tracking reflexes, respiration, and diuresis.

Current Stage

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Reflex status

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Resp. rate risk

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Toxicity risk

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Dose action

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Serum magnesium (mEq/L)4.0

Urine output (mL/hr)50

Subtherapeutic / therapeutic zone

Caution — reflex loss risk

Toxic — respiratory danger

Urine output / IV flow

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IV Loading Dose — Starting the Magnesium Sulfate Infusion

A bolus loading dose rapidly raises serum magnesium to a seizure-preventing level.

4–6 g: Typical loading dose (placeholder value)
15–20 min: Infusion time (placeholder value)
IV pump: Route (placeholder value)
Minutes: Onset (placeholder value)

Loading dose mechanics

Placeholder text describing the loading dose infusion process.

Placeholder highlight callout about loading dose safety.

Therapeutic Serum Magnesium — The Anticonvulsant Window

Serum levels of 4–7 mEq/L block seizure activity while staying safe.

4–7 mEq/L: Therapeutic range (placeholder value)
1–2 g/hr: Maintenance rate (placeholder value)
Every 4–6 hr: Check interval (placeholder value)
Seizure-free: Goal (placeholder value)

Maintaining the therapeutic window

Placeholder text describing therapeutic range maintenance.

Placeholder highlight callout about therapeutic monitoring.

Deep Tendon Reflex Monitoring — First Sign of Rising Toxicity

Loss of the patellar reflex is an early bedside toxicity warning.

~8–10 mEq/L: Reflex loss onset (placeholder value)
Hourly: Check frequency (placeholder value)
Patellar tap: Assessment (placeholder value)
Hold if absent: Action (placeholder value)

Reflex assessment protocol

Placeholder text describing deep tendon reflex checks.

Placeholder highlight callout about reflex loss response.

Respiratory Rate — The Critical Toxicity Warning Sign

Falling respiratory rate signals dangerous magnesium accumulation.

<12/min: Danger threshold (placeholder value)
~12 mEq/L: Onset level (placeholder value)
Calcium gluconate: Antidote (placeholder value)
Continuous: Monitoring (placeholder value)

Respiratory depression response

Placeholder text describing respiratory toxicity management.

Placeholder highlight callout about respiratory emergencies.

Urine Output and Dose Adjustment — Preventing Accumulation

Low urine output means magnesium is not clearing, so dose is lowered.

25 mL/hr: Minimum output (placeholder value)
Renal: Clearance route (placeholder value)
Reduce/hold: Oliguria action (placeholder value)
Serum level: Recheck (placeholder value)

Renal clearance and dose titration

Placeholder text describing urine output based dose adjustment.

Placeholder highlight callout about renal monitoring.