Drug Calculation Test – Excel Care Services

Name: Date:

Occupational Health, Safety and Rehabilitation Policies and Procedures

100% Pass is necessary for safe medication administration.

Formula for Drug Calculations :

Strength Required (SR) Volume

——————————- X ———– = Volume Given

Strength in Stock (SS) 1

Formula for Flow Rate Calculations :

To calculate infusion rate when using an IMED pump:

Total Volume

———————— = mls per hour

Number of Hours

To calculate Drip rates:

Amount (mls) X Drops per ml

————————————— = Drops per minute

Number of hours 60 (min)

1) A patient is to be given 5mg Diazepam IMI. You are given an ampoule containing Diazepam 10mg

in 2mls. How many mls do you draw up?

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2) A patient is to be given 150mcg of Digoxin IVI. The ampoule contains 500mcg of Digoxin in 2mls.

How many mls do you draw up?

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3) A patient is to be given 125mg Lignocaine slowly IVI. The ampoule containing the Lignocaine is

100mg in 10mls. How many mls do you draw up and administer.

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4) A patient is be given 120mg of Frusemide IVI. The ampoule contains 80mg Frusemide in 5 mls. How

many mls do you give the patient?

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5) A patient is to be given 325mcg of Atropine IVI. The ampoule containing the Atropine is 600mcg in

1 ml. How many mls do you draw up?

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6) A patient is to be given Dilantin 20mg BD by IVI route. Strength in stock 100mg/2ml. How many mls

do you draw up and how often can you administer?

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Occupational Health, Safety and Rehabilitation Policies and Procedures

7) A patient is to be given Maxalon 5mg 8/24 PRN. Route IM. Strength in stock 10mg/2mls. How many

mls do you draw up? And how often may you administer the drug?

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8) What do the abbreviations below stand for?

TDS S4

IMI

NOCTE

3/24h

9) A patient is to be given Valium 16mg Nocte. Route PO. Strength in stock 2mg tablets. How many

tablets do you administer?

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10) Convert Penicillin tabs 0.45 grams to milligrams

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11) Convert Zantac tab 200 milligrams to grams

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12) Convert Lasix tab 50000 micrograms to milligrams

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13) Amoxicillin is available in 250mg/5mls syrup. How many mls of syrup would you administer when

a patient is ordered 125mg?

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14) A patient is ordered Capoten 6.25mg PO. Stock on hand contains 25mg tablets. How many tablets

will you give the patient?

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15) Calculate the rate of the infusion in drops/min and ml/hr (giving set 20 drops per ml) for an infusion

of 500 ml normal saline over 8 hours.

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16) A patient is ordered 500ml of Gelofusion over 30 minutes. Calculate the infusion rate in drops/min

and ml/hr (giving set 20 drops/ml).

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17) Indicate how many drops/ml in the following giving sets.

Normal/Blood Infusion Set: ______________________________________________________

Burette Set: ___________________________________________________________________

18) List 3 situations in which you need to use a burette?

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