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Flouride toxicity question
QUESTION 28.
Fluoride Toxicity:
A children patient that weighs 20 kg comes in. How much Duraphat can you give him before you get to the definite toxic dose?
A. 25-50 grams
B. 25-50 mg
C 2.5 -5gram
D. 11-23 gram
Answer given is 11-23 gram.
My scratch work:
Duraphat - is 22600 ppm which is 22.6 mg.
Definite toxic dose is 32-64mg per kg
32 mg /kg * 20 kg = 640 mg is the max dose
Or
64 mg/kg *20 kg = 1200 mg.
Max dose is
640mg / 22.6 mg per gram of duraphat so that’s about 33?
1200mg/ 22 =55.
QUESTION 28.
Fluoride Toxicity:
A children patient that weighs 20 kg comes in. How much Duraphat can you give him before you get to the definite toxic dose?
A. 25-50 grams
B. 25-50 mg
C 2.5 -5gram
D. 11-23 gram
Answer given is 11-23 gram.
My scratch work:
Duraphat - is 22600 ppm which is 22.6 mg.
Definite toxic dose is 32-64mg per kg
32 mg /kg * 20 kg = 640 mg is the max dose
Or
64 mg/kg *20 kg = 1200 mg.
Max dose is
640mg / 22.6 mg per gram of duraphat so that’s about 33?
1200mg/ 22 =55.
