Question

7. The physician ordered: Digoxin 250 mcg po qid. The label reads 1 tablet equals 0.25 mg. How many tablets will you administer to your patient? 8. The nonsteroidal medication naproxen (Naprosyn) has been prescribed for a patient, 1375 mg/day in divided doses. Each tablet contains 0.275 g. How many tablets equal this daily dose? 9. The label reads Heparin Sodium 10,000 USP Units/mL. The order is for Heparin 6,000 U q6h sc. How many milliliters will you administer to the patient? 10. The physician ordered 0.4 mL of potassium iodide (lostate) expectorant. The label reads 325 mg/tsp. How many milligrams are contained in this dose? 11. The order is to give 600 mg of Ampicillin IM q8h. The directions for dilution on the 2 gm vial reads: Reconstitute with 4.8 mL of sterile water to obtain a concentration of 400 mg per mL. How many mL will you adminster per dose?

Answer 1

7. Recommended dosage = 250 mcg po qid.

PO stands for the Latin abbreviation per os, which means orally administered.

QID is the Latin abbreviation for quarter in die, which means 4 times a day.

Therefore the physician's recommendation for administering Digoxin is 250 mcg per dosage, 4 times a day.

Given, each tablet = 0.25 mg Digoxin

= 0.25 x 1000 mcg Digoxin

= 250 mcg Digoxin.

So, each tablet contains recommended dose of 250 mcg Digoxin.

So, 1 tablet of Digoxin should be administered orally to the patient, 4 times a day.

8. Prescribed dose of naproxen = 1375 mg/day

Dose present in each tablet = 0.275 g

= 0.275 x 1000 mg

= 275 mg

Now, each tablet contains 275 mg of naproxen, and a total dose of 1375 mg is required each day.

Therefore, no. of tablets of naproxen required each day = 1375/275 = 5

Thus, 5 tablets of naproxen equals this daily dose.

9. Prescribed dosage of Heparin Sodium = 6000 U q6h sc

Here, U stands for unit, q6h is the Latin abbreviation for quaque sexta hora, which means every six hours, and sc meands subcutaneous administration.

Therefore, according to the order, 6000 units of Heparin Sodium must be administered subcutaneously every 6 hours.

Given stock of Heparin Sodium = 10000 USP units/ml

[USP stands for United States Pharmacopeia. In most cases, 1 USP unit = 1 international unit.]

Now, according to the label, present solution contains 10000 units of Heparin Sodium per ml of solution.

Since, only 6000 units is to be administered, the required volume of medication = 6000 units/10000 units/ml

= 0.6 ml.

Therefore, 0.6 ml of Heparin Sodium must be administered to the patient every six hours.

10. Here, prescribed dosage of potassium iodide = 0.4 ml

According to the label, the concentration of the drug = 325 mg/tsp

Now, according to the US measurements , 1 teaspoon(tsp) = 4.929 mL (nearly 5 mL).

Therefore, considering 1 tsp = 5 mL, we get,

In 5 mL of the medication, 325 mg of potassium iodide is present.

Therefore, in 1 mL medication, 325 mg/5 = 65 mg of potassium iodide is present.

Thus, in 0.4 mL of medication, 65 x 0.4 mg = 26 mg of potassium iodide is present.

Hence, in the prescribed dosage of 0.4 mL, 26 mg of potassium iodide is present.

11. Ordered dosage = 600 mg IM q8h

IM stands for intramuscular, which is the recommended route of administration of the medication. q8h is the Latin abbreviation of Quaque Octa Hora, which means every 8 hours.

Therefore, according to the physician's order, 600 mg of Ampicillin must be injected intramuscularly, every 8 hours.

According to the label, after reconstituting with 4.8 mL of sterile water, the medication would have the dosage = 400 mg/mL.

Now, according to the order, 600 mg Ampicillin must be administered every dose.

Therefore, required volume of medication per dose = 600 mg/ 400 mg/mL.

= 1.5 mL.

Hence, to 1.5 mL of the medication must be administered per dose intramuscularly, and this should be repeated every 8 hours.

Answer 2

1 tablet per dosage