The lethal dose of fluoride for 70 kg adult is:: (A) 32-64 mg of fluoride/kg body weight, (B) 50-60 mg of fluoride/kg body weight, (C) 30-70 mg of fluoride/kg body weight, (D) 60-80 mg of fluoride/kg body weight
Answer is A. CERTAINLY LETHAL DOSE (CLD) : 32 - 64 mg of fluoride/kg body wt.
SAFELY TOLERATED DOSE (STD) : 8 - 16 mg of fluoride/kg body wt.
Ref: Soben peter 5th edition pg no:280