Patient With Epilepsy Receiving Phenobarbital Discussion

Step 1/2

To calculate the number of tablets to administer for each dose of phenobarbital 90mg, we need to know the strength (mg) of each tablet. Let’s assume that each tablet of phenobarbital is 30mg. To administer 90mg for each dose, we need to divide 90mg by the strength of each tablet (30mg): 90mg รท 30mg = 3 tablets Therefore, for each dose of phenobarbital 90mg, you will administer three tablets. For ONE DAY, where the patient needs 90 mg, THREE TIMES day, 3 tablets is multiplied by 3: 3 tablets x 3 = 9 tablets per day

Explanation:

In solving drug calculation questions, it is very important to take note of the values provided in the question. The question states the desired dose of the phenobarbital which is 90 mg, and given 3 times per day, but it is not stated the dose on hand – the amount (mg) of each tablet. Therefore, in the answer, a value was assumed in order to solve the problem.

Step 2/2

The question states that the patient is to receive phenobarbital 90 mg po three times a day. However, it DOES NOT state the dose on hand of the phenobarbital tablets. In the answer above, it is assumed that the dose is 30 mg, therefore in order to comply with the 90 mg per dose, 3 tablets per dose is administered, and therefore 9 tablets per day, since the phenobarbital is given 3 times a day.

Explanation:

For example, if the question states that the dose on hand of each phenobarbital tablet is 90 mg, then only 1 tablet is given per dose, hence, 3 tablets per day.

Final answer

In the answer above, it is assumed that the dose is 30 mg, therefore in order to comply with the 90 mg per dose, 3 tablets per dose is administered, and therefore 9 tablets per day, since the phenobarbital is given 3 times a day. Patient With Epilepsy Receiving Phenobarbital Discussion