1
Lorazepam injection is prescribed for a 72kg patient at a dose of 25μg/kg by slow IV injection. What dose should be prescribed?
2
The concentration of lorazepam injection is 4mg/mL. What volume should be administered to the above patient?
3
Paracetamol suspension 120mg/5mL is prescribed for a 5 year old child at a dose of 15mg/kg. The child weighs 18kg. What volume should be administered?
4
Gentamicin is prescribed as a once daily dose at 5mg/kg. It is available as a 40mg/mL injection. What volume should be administered for a 55kg patient?
5
A patient is prescribed NovoMix 30® - 15 units mane, 10 units in the evening. Each millilitre contains 100 units of insulin. How many days will a 3mL cartridge last for?
6
Seretide 250 Accuhaler® - 1 blister BD is prescribed for a patient. Each disk contains 60 blisters. How many days will this inhaler last for?
7
A patient is prescribed latanoprost eye drops, 1 drop into both eyes at night. Each millilitre contains 50μg. What is the percentage w/v of latanoprost?
8
A patient is prescribed Ferrous sulphate 200mg TDS, but post-CVA is unable to swallow them. The doctor wants to prescribe Sytron® Elixir. What dose of Sytron would provide an equivalent dose of elemental iron?
9
You receive a prescription for prednisolone 30mg OD for 5 days, then reduce by 5mg every day until stopped. How many 5mg tablets would you supply?
10
You receive a prescription for hydroxycarbamide 1.5g/1g on alternating days. The doctor requests a 30 day supply. How many hydroxycarbamide 500mg capsules would you supply?
11
The instructions for the reconstitution of Flucloxacillin 250mg/5mL oral solution BP to make up 100mL state: “Add 58mL of potable water and shake until all contents are dissolved”. What is the displacement volume of each 250mg dose?
12
A patient is prescribed enoxaparin 1.5mg/kg for DVT. He says he weighs 10 stone. What dose should be prescribed?
13
You receive a prescription for 2% menthol in aqueous cream. How much menthol is required to make 500g?
14
The BNF states: “For established hypophosphataemia, monobasic potassium phosphate may be infused at a maximum rate of 9mmol every 12 hours.” What volume of a “Phosphates Polyfusor® ” should be administered over 12 hours? (Contains approximately 50mmol PO4 3- in each 500mL polyfusor).
15
Capecitabine is prescribed at a dose of 1250mg/m2 BD for 14 days for a patient. If they weigh 70kg and are 170cm tall. Calculate the dose of capecitabine to be given. BSA=√(weight×height÷3600).
16
A patient is prescribed 1L sodium chloride 0.9% with 40mmol potassium chloride to be infused over 30 minutes. What rate in mL/hour should the pump be set to?
17
In the above infusion, how many grams of potassium chloride are dissolved in each litre of sodium chloride 0.9%? Atomic weight of potassium: 39 Atomic weight of chlorine: 35.5
18
A doctor wishes to give a patient 20mmol of Mg2+ but the ampoule states it contains 5g in each 10mL ampoule. What volume of Magnesium sulphate 50% would contain 20mmol of magnesium ions? Atomic weight of magnesium: 24 Atomic weight of sulphur: 32 Atomic weight of oxygen: 16
19
The formula for Peppermint Spirit BPC is given below:
20
Unfortunately you only stock 97% alcohol in your pharmacy. What volume of water will need to be added to dilute it from 97% to 90%?