DRUG DOSE CALCULATION HOMEWORK 1

Dr . Maha khalid

EMS 353

The prescribed dose is 1g magnesium sulphate.Magnesium sulphate 50% injection is

available.

50% = 50g in 100ml.

How many mls contains 1g magnesium sulphate?

Thiopentone2.5% infusion is prescribed. What volume is required to administer a dose of 100mg?

300mg aminophylline injection is prescribed. 250mg in 10ml ampoules are available.The volume of injection required is ?

1000ml sodium chloride 0.9% infusion over 8 hours using a solution set is prescribed. 8hr = 8 x 60min.The drip rate needs to be set at ? Drip set = 20 drops / ml

100ml glucose 5% infusion over 6 hours using a burette set is prescribed. 6hr = 6 x 60min.

The rate per minute should be set at ?Drip set = 20 drops / ml

Diamorphine 30mg in 60ml 0.9% sodium chloride over 24 hours using a syringe pump is prescribed.

To be given at 1.25mg per hour. How many ml per hour should be given?

Insulin 50 international units in 50ml 0.9% sodium chloride is prescribed for administration from a syringe

pump, starting at 4 international units per hour.

How many ml per hour should be given?

FRUSEMIDE 70MG IVI IS CHARTED. STOCK DOSE IS 20MG/ML. HOW MANY ML

WOULD YOU GIVE?

A 1L bag is to be infused over 6 hours. Calculate how many mls per hour the patient will receive

How many ml/hr would a patient receive if they were to have 500ml of fluid infused over 6 hours?

Your patient is prescribed a 1000ml infusion of Sodium Chloride 0.9% to be given over 6 hours.

Using 60 gtt / ml giving set, calculate the drops per minutes he will receive.

Your patient weighs 200 lb and the order is to infuse 250 mg dobutamine in 500 ml NS at 10 mcg/kg/min. How many milligrams of dobutamine will infuse per hour?

Your patient weighs 200 lb and the order is to infuse dobutamine at 10 mcg/kg/min. How many milligrams of dobutamine will infuse per hour?

Your client is ordered 1 mg/hr morphine through the volumetric pump. You have made up an intravenous bag containing 50 mg morphine in 500 mL normal saline. How many mL/hr will you dial up on the volumetric pump?

Dopamine

Information

Drug order – 7 mcg/kg/min

Concentration on hand - 800 mg (it may come in a premixed IV bag or in 200 mg vials)

We know this has to be converted to mcg because that’s the drug order,

right?

Drip Set - 60 gtts/ml

Time - We already know it’s per minute

Patient’s Weight - 220 lbs.

IV Bag - 500 ml Normal Saline

Lidocaine

Drug ordered: 2 mg/min IVPB

Drug on hand: 2 Grams Lidocaine 20% in 5 ml (the 5 ml is irrelevant in our calculations)

IV Solution: 500 ml of Normal Saline

Drug Concentration in the IV Solution: 4 mg/ml (this is achieved by dividing the amount of IV solution into the drug. But first you must convert grams to milligrams to properly calculate the problem

IV Drip Set: 60 drops per milliliter

Want to Know: Gtts/min to be administered to the patient

A patient with impaired renal function is to receive 2 mcg/kg/min. You have 800 mg of Dopamine and a 500 mL IV bag of Normal Saline, along with a 60 gtt IV tubing set. Your patient weighs 250 Lbs. How many gtts/ minute will you give?

Answer 8.475 gtt /min = 9 gtt /min

A patient with bradycardia is to receive 5

mcg/kg/min. Your premixed Dopamine is

1600 mcg/mL and you have a 60 gtt IV

tubing set. Your patient weighs 175 Lbs.

How many gtts/ minute will you give?

answer 16 gtts/ minute

A hypotensive patient is to receive 10

mcg/kg/min. You have 400 mg of

Dopamine and 250 mL Normal Saline,

along with a 60 gtt set. Your patient

weighs 220 Lbs. How many gtts/ minute

will you give?

Answer 40 gtts/ minute

A patient with multiple PVC’s is to receive

2 mg/ minute of Lidocaine. You have 1g

and a 250 mL bag of Normal Saline,along

with a 60 gtt set. How many gtts/ minute

will you give?

answer 30 gtts/ minute

After successful resuscitation of a patient

in V Tach, you are ordered to start a

Lidocaine drip at 3 mg/ min. Your

premixed Lidocaine is packaged 2g/500

mL. You also have a 60 gtt set. How many

gtts/ min will you give?

Answer 45 gtts/ minute

A patient is to receive 4 mg/ minute of

Lidocaine. You have Lidocaine 4g/ 1000 mL, and a 60 gtt IV tubing. How many gtts/min will you give?

Answer 60 gtts/ minute

Lidocaine is ordered 1 mg/kg to a patient that weighs 150 Lbs. It is supplied 100 mg/5 mL. How many mL will you need to give?

answer = 3.4 mL

Amiodarone is ordered 150 mg IVP over 10 minutes. It is supplied 200 mg/ 10 mL. How many mL will you need to give?

Answer 7.5 mL