Question

Please help answer these questions:

1. Directions for reconstitution of ampicillin sodium for injection: "For IM use add 3.5 mL sterile water for injection. Resulting solution contains 250 mg ampicillin sodium per mL. The vial contains ampicillin sodium equivalent to 1 gram. Usual adult dosage of ampicillin is 250 mg–500 mg IM every 6 hours." How much diluent is added to the vial to prepare the medication for IM use?

2. Directions for reconstitution of ampicillin sodium for injection: "For IM use add 3.5 mL sterile water for injection. Resulting solution contains 250 mg ampicillin sodium per mL. The vial contains ampicillin sodium equivalent to 1 gram. Usual adult dosage of ampicillin is 250 mg–500 mg IM every 6 hours." How much diluent is added to the vial to prepare the medication for IM use?

3. A child weighs 18 kg and has an order for Zithromax 10 mg/kg po stat. The recommended dosage range on day one is 10 mg/kg. The oral suspension is dispensed as 200 mg in 5 mL. How many milliliters will you administer in one dose?

4. Directions for reconstitution of oxacillin sodium for injection: "For IM use add 5.7 mL sterile water for injection. Resulting solution contains 250 mg oxacillin sodium per 1.5 mL. The vial contains oxacillin sodium equivalent to 1 gram. Usual adult dosage of oxacillin sodium is 250 mg–500 mg IM every 4 to 6 hours." The client is to receive 400 mg IM every 6 hours. How many milliliters would the nurse administer to the client?

5. Order states administer 1000 ml D5NS IV from 4 am to 4 pm using a macro drip (10 gtts.ml). How many gtts/min?

6. Order states diltiazem (Cardizem) 10 mg/hour IV. Supplied: diltiazem (Cardizem) 125 mg in 100 mL D5W and will infuse per infusion pump. How many mls/hour?

7. Order states Tobramycin 50 mg IV every 8 hours. Reconstitute with 4.5 mls sterile water to yield 80 mg in 2 ml. Add to 100 mL D5W and infuse over 60 minutes. Use macrodrip tubing at 15 gtts/ml. What is the rate?

Answer 1

No 1. Directions for the reconstitution of ampicillin sodium for injection For IM use add 3.5 mL sterile water for injection.

The vial contains ampicillin sodium equivalent to 1 gram.

After adding 3.5ml the solution contains 250 mg ampicillin sodium per ml.

The usual adult dosage of ampicillin is 250 mg–500 mg IM every 6 hours.

Then you have to administer 1 to 2 ml of the drug.

3.5 ml of diluent is added to the vial to prepare the medication for IM use.

No 2. Order Dose 10mg/kg

the child weighs 18 kg

So, the total dose will be 180mg ()

10mg x 18kg = 180mg

The oral suspension is dispensed as 200 mg in 5 mL

I.e 1 ml contains 40mg ()

200mg + 5ml = 40mg

We have to administer 4.5ml of oral suspension. ()

180mg = 40mg/ml = 4.5ml

Answer - 4.5ml

No 3. Directions for reconstitution of oxacillin sodium for injection For IM use add 5.7 mL sterile water for injection.

After adding sterile water the solution contains 250 mg oxacillin sodium per 1.5 mL.

The client is to receive 400 mg IM every 6 hours.

, I.e 1 ml of solution contains 166mg of oxacillin sodium.

250mg + 1.5ml = 166mg

Then 0.1ml contains 16.6mg of oxacillin sodium.

So, we need to administer 2.4ml to the client.

No 4. Order states administer 1000 ml D5NS IV from 4 am to 4 pm using a macro drip (10 gtt/ml)

1000ml in 12 hours.

Drip factor formula is

Volume x Dripfactor - TimeIn Minutes

1000ml x 10gtt/ml = 720min = 13drops/min

You have to administer 13gtt/min