Question

1. Order: Heparin 7500 units subcutaneously twice a day. Supply: Heparin 20,000 units/mL.

Question: How many milliliters of heparin should be given with each dose? (Round to the nearest hundredth.)

2. Order: Give 500 mL of dextran 40 over 24 hours.

Question: How many milliliters per hour should the IV infusion device be set for? (Round to the nearest whole number.)

3.The physician orders enoxaparin (Lovenox) 30 mg subcutaneously twice daily for 7 to 10 days for prevention of DVT after hip replacement surgery.

Available are prefilled syringes of 150 mg/1 mL concentration. How many milliliters will the nurse expect to administer to this patient with each dose?

4. Order: Synthroid 125 mcg by mouth (PO) daily.

Supply: Synthroid 0.25 mg per tablet.

Question: How many tablets of Synthroid should be given?

5. Order: Solu-Medrol 60 mg IV push-stat.

Supply: Solu-Medrol 125 mg/mL.

Question: How many milliliters of Solu-Medrol should be given? (Round to the nearest tenth.)

Answer 1

1.

Order:

Heparin 7500units subcutaneously twice a day.

Supply:

Heparin 20,000units/mL

20,000units:1mL = 7500units :x ​​mL

20000 7500

----------- = ---------

1 x

7500

x = --------------

  20000

x =0.375mL

After rounding off to nearest hundredth x = 0.38mL

Therefore 0.38 ml of Heparin should be given with each dose.

2.

Order:Give 500mL of dextran 40 over 24 hours

Volume of IV fluids

Flow Rate= --------------------------

   Time

500

= --------------

24

= 20.83

= 21 (after rounding off to nearest whole number)

IV infusion device should be set for 21mL/Hr

3.

Order:Enoxaparin(Lovenox)30mg subcutaneously twice daily for 7 to 10 days

Available is prefilled syringes of 150mg/1mL

150mg : 1mL = 30mg : x mL

150 30

-------------- = --------

1 X

​​​​​​150 x = 30

30

X = -------​​​​

150

x = 0.2 mL

While administering each dose the nurse has to take 0.2 mL of Enoxaparin.

4.Order:

Synthroid 125 mcg by mouth daily.

Supply:0.25mg tablets of Synthroid.

converting mg into mcg:

1mg =1000mcg

So

0.25 mg = 250 mcg

Hence to administer Synthroid 125mcg ,we need to give 1/2 (Half) tablet of 0.25mg tablet of Synthroid.

5.​​​​​Order:Solumedrol 60mg IV push stat.

Supply:Solu -medrol 125mg/mL

  

125mg : 1mL = 60 mg : x mL

125 60

-------- = ------------------

1   x

125 x =  ​​​​​​60

60

x =----------

125

x = 0.48

After rounding off to nearest tenth

x =0.5

Therefore 0.5milliliters of Solu-Medrol should be given.