Question

Suliaco MCPHS University Pharmacy DATE TODAY NAME Richard Simmons LOCATION _214-2 D.O.B. 7-16-40 ALLERGY NKA Problem 2 1. How many mL of medication (magnesium sulfate) need to be injected into the 250 mL of NS for this order? 2. How many IV preparations ations need to be made for the patient to receive their treatment for the next 24 hours? 3. What is the final concentration (mg/mL) of the IV bag (Do not include the volume of the additive)? (round to a whole number) DOCTOR'S ORDER: MAGNESIUM SULFATE 4G IN 250 ML NS IV OVER 30 MINUTES 24H R. Jons, M.D. NDC 0517-2610-25 och Mam MAGNESIUM SULFATE Sh o 500 mg. W INJECTION, USP er for the How with Stud 50% (0.5 g/ml) ondor Som Hode 5 grams/10 mL 6 mume C e more (4.06 mEq/ml Magnesium) 2.500 ml dunian. WARNING: USE ONLY IF 10 mL SINGLE DOSE VIAL SOLUTION SCIAR FOR IM USE DISCARD UNUSED PORTION FOR IV USE AFTER DILUTION Sh27-25C77 Rx Only Temperture AMERICAN Direction for the REGENT, INC Podig heeft SHIRLEY, NY 11967 11/05

Answer 1

1. Ordered dose of Magnesium sulfate - 4gm in 250ml NS IV over 30min q4h.

Available Magnesium sulfate - 5gm in 10ml

Means 10ml of available medicine has 5gm of Magnesium sulfate .

Using unitary method :-

5gm of magnesium sulfate is available in 10ml of solution

1gm of magnesium sulfate is available in 10/5ml

Then 4gm of magnesium sulfate will be available in 10/5× 4

= 8ml

8ml of magnesium sulfate should be injected into the 250ml of NS .

2. Ordered dose of magnesium sulfate is 4gm in 250NS 4hourly in 24hours

So, 4 IV preparations need to be made for the patient to receive their treatment for the next 24hours.