What is the recommended IV dose of dantrolene to be given in a malignant hyperthermia (MH) crisis?

a. 1 mg/kg every minute until temperature is within normal limits
b. 2 to 3 mg/kg in an initial IV bolus and repeat every 5 to 10 minutes
c. 10 mg/kg initially and every 5 minutes until muscles relax
d. 10 to 20 mg/kg every 5 minutes until temperature stabilizes

ANS: B
The recommended dose is 2 to 3 mg/kg in an initial IV bolus and repeat every 5 to 10 minutes until the maximum dose of 10 mg/kg is given or the MH episode is controlled.

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