Final answer:
To calculate the number of tablets for the dog, multiply the dog's weight by the dosage per kilogram and then divide by the tablet size. The calculation shows that the dog needs 0.5 tablets, which is not an available option in the answers provided.
Step-by-step explanation:
To determine the dosage of medication for a dog, we need to calculate the amount needed based on the dog's weight and the dosage requirement, which is then compared to the tablet size to figure out the number of tablets to administer.
In this case, the dog weighs 20 kg and requires 50 mg/kg of medication. First, we calculate the total amount of medication needed by multiplying the dog's weight by the dosage per kilogram:
20 kg × 50 mg/kg = 1000 mg
Now, we convert the size of the tablet from grams to milligrams to match the calculated dosage:
2 g × 1000 mg/g = 2000 mg
Finally, we divide the total medication needed by the tablet's potency to find out how many tablets the dog needs:
1000 mg ÷ 2000 mg/tablet = 0.5 tablets
Therefore, the dog requires 0.5 tablets of the medication. However, since this option is not available in the multiple-choice answers, we need to review the calculation or consult the veterinarian for the proper dosing as it's crucial to give the correct amount. Safety and accuracy in medication dosage are paramount.