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owjiahao owjiahao
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6 years ago
If a child weighs 18 kg, and the adult dose is 75 mg, how many milligrams should the child receive?
 
 16.5
  17.3
  19.8
  22.4


Which of the following types of spatulas should be used in measuring corrosive ingredients?
 
 Steel
  Plastic
  Wood
  Rubber
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#1
6 years ago
19.8

Rationale: By using Clark's rule, first convert kilograms to pounds: 1 kg = 2.2 lbs. Use this formula: 1 kg / 2.2 lbs = 18 kg / X lbs. X = 39.6 lbs. Substitute into the equation: 39.6 / 150 x 75 mg = 19.8 mg.

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Rubber

Rationale: A rubber spatula should be used in measuring corrosive ingredients. This is because a steel or plastic spatula may react with the ingredients. Wood has its own corrosive properties and should not be used.
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