Question

Drug Dosage Cakulations 1. A physician ordered 600,000 U penicillin PO qth. The available drug is 400,000 U per scored tablet. Use the Basic Formula method to determine how many tablets you will administer A physician orders methylprednisolone (Medrol) 4 mg PO qh for inflammation The pharmacy has 8 mg scored tablets in stock. Use the Basic Formula to determine the dosage the patient should receive. 2 A physician ordered 8 mg perphenazine (Trilafon) PO bid for severe nausea. The available dose is 2 mg/tablet. Use the Ratio and Proportion method to determine how many tablets to administer. 3 4. A physician orders methylprednisolone (Medrol) 4 mg PO qh for inflammation The pharmacy has 8 mg scored tablets in stock. How many tablets should the patient receive Use the Ratio and Proportion method. A physician ordered 1 mg desamethasone (Decadron), PO, bid for inflammation s The drug available is 0.5 mg'talet. Use the Fractional Equation method to determine how many tablets to administer 6 A physician prescribes digosin 0.25 mg PO qid. The drug available is 0.125 mg digosin per tablet. Use the Fractional Equation method to determine how many tablets to administer 10 30401A05438- Assignment Pack Oral Liquids All liquid medication is measured at level, using the 7. 8. A physician oeders 200 mg of ampicillin. The medication is available with a dosage strength of 125 mg/Sml. How many ml. should be administered 9. A physician orders 40 mEq of potassium to be administered in 4 oz. of orange juice. The pharmacy is stocked with potassium glaconate 20 mEq/15 ml. How many milliliters of potassium chloride do you need to add to the juice Parenteral Medications 0. True or False Parenteral medication can be taken orally A physician orders methylprednisolone (Medrol), 75 mg IM for inflammation. The vailable dosage is 125 mg/2 mL How much of the drug should be administered? 11. Insulin 12. What item is missing from this insulin prescription? Humulin R Regular U-100 14 U SQ stat ml(s) of inselin if an insulin syringe is not 13. Standard insulin syringes hold available, you can use a syringe 14. Normal adult dosage for heparin is between hr(s). It may be ordered in ml per Uand Uevery or ml per 750 units of U-100 insulin is equal to how many mL 5. A patient is prescribed insulin as follows: Humalin R Regular of U-100 insulin 34 U sQ 1/2 hour after breakfast. Calculate the amount to administer in mL. 16.

Answer 1

1.Given

Order :6,000,000 unit

Route: oral

Frequency :6 hourly

Available :4,000,000 unit /tablet

So to calculate the no.of tablet for 6,000,000 U is

Formula :Number of tablet=Strength ordered by physician ÷Dosage strength

=1.3 (6,000,000÷4,000,000)

1 tablet and a 3rd percent of a tablet it can be rounded of to 0.5 so 1 and a half tablet to be given

2.Strength ordered by physician :4mg

Dosage strength=8mg

Number of tablet =strength ordered by physician ÷Doasge strength

=4÷8

=0.5 (half tablet )

Ans:Half tablet to be administered

3.Order:8mg

Strength available :2mg/tablet

So strength ordered/dosage strength

=8÷2

=4

Ans:4 tablet to be given

4.Here the dose ordered is 4mg

Available is 8mg

To get in ratio

Strength ordered/Doasge of 1 tablet

=4/8

=1/2

Ans:1:2 is the ratio and 1/2 is the proportion of the tablet