Question

1. You have to administer 750 mg of Carafate to your patient three times a day. This is what the pharmacy sends1g/10ml. How many teaspoons do you give for each dose? ____________
2. You are to give Digoxin elixir 0.25mg po Daily. Hold dose if the heart rate is less than 60. The Digoxin elixir is 50mcg /mL. How many mLs do you give? ______________

3. You are to give an 8000 units bolus dose IV. This is the medication the pharmacy sends 10,000 units/ml. How many mLs would you give? ________________

4. Now that you have given the heparin IV bolus the physician wants you to start a Heparin drip at 1000 units/hr. This is the medication in the medication dispense machine Heparin Sodium 25,000 usp Units per 250ml (100usp units/ml). How many mL/hr would you program in the IV pump?
5. The patient’s PTT came back low. You notify the physician. You receive a new order to increase the heparin drip to 1500u/hr. How many mLs do you set the pump for? ________________

Answer 1

1. Givn data

Dose to administer = 750 mg

  Availabe concentration in pharmacy = 1g/10ml = 1000mg/ 10 mL (1gram = 1000mg)

mL to adminster = (dose to administer/available dose) x availabe volume

= (750 mg/1000 mg) x 10 mL

= 7.5 mL

7.5 mL of drug need to adminster to get 750mg od drug

1 reaspoon is 5 mL

How many teaspoons to get 7.5 mL = (7.5 mL x 1) / 5 mL) = 1.5 mL

The answer is:  1.5 teaspoon need to adminster in each dose to get 750mg of drug

2. Given data

Dose Digoxin elixir to give = 0.25mg = 250 mcg (1 mg = 1000 mcg)

Available strength of Digoxin elixir = 50mcg /mL

mL to administer =  (dose to administer/available dose) x availabe volume

= (250 mcg/50 mL) x 1 mL

= 5 mL

The answer is mLs of Digoxin elixir to give = 5 mL

3. Given data

Dose to give = 8000 units

Available strength = 10,000 units/ml

mL to administer =  (dose to administer/available dose) x availabe volume

= (8000 units/10,000 units) x 1

= 0.8 mL

The answer is mLs to adminster = 0.8 mL

4. Given data

Ordered dose = 1000 units/hr

Concentration available = 100units/hr

mL/hr = required dose/concentration of the drug

= 1000units/hr / 100usp units/ml

= 10 mL/hr

The asnwer is mL/hr to program in IV pump = 10 mL/hr

1. The patient’s PTT came back low. You notify the physician. You receive a new order to increase the heparin drip to 1500u/hr. How many mLs do you set the pump for? ________________

5. Given data

Ordered dose (increased dose) = 1500 units/hr

   Concentration available = 100units/hr (same as previous)

mL/hr = required dose/concentration of the drug

= 1500units/hr / 100usp units/ml

= 15 mL/hr

The answer is mLs do you set the pump = 15 mL/hr