Drug calculation Test



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| |Please use this column to show working out |ANSWER |

|Question 1 | | |

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|Convert to milligrams: | | |

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|1.02g | |1020 mg |

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|Question 2 | | |

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|Convert to Litres: | | |

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|95mL | |0.095 litres |

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|Question 3 | | |

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|Convert to nanograms: | | |

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|3.5 micrograms | |3500 |

| | |nanograms |

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|Question 4 | | |

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|Convert to grams: | | |

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|0.1 kg | | |

| | |100g |

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|Question 5 | | |

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|A mother is to receive an infusion of 1200mL over 8 hours. | | |

| | |150 mL/hr |

|Calculate the rate. | | |

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|Question 6 | | |

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|A woman is prescribed 1.5L of IV fluids over 12 hours. What rate of | | |

|mL/hr would ensure the infusion completed at the correct time? | |125 mL/hr |

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|Question 7 | | |

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|A mother has an intravenous infusion of 750mL of Hartmanns solution | | |

|commenced at 10am. If the rate is 150mL/hr, what percentage would have | |80% |

|been infused at 2pm? | | |

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|Question 8 | | |

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|A mother is commenced on an infusion where 5g of Magnesium Sulphate has | | |

|been added to a 500mL bad of solution. If she is to have 500mg/hr, at | |50 mL/hr |

|what rate should the infusion run? | | |

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|Question 9 | | |

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|Joanne’s fluid balance chart for 24 hours shows: | | |

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|INTAKE OUTPUT | | |

|IV Fluids 750 mL Urine 980mL | |1152mL |

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|Oral Fluids 310 mL Drain | | |

|22mL | | |

|Vomit 150mL | | |

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|Calculate the total output | | |

|Question 10 | | |

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|Saoirse’s fluid balance chart for 24 hours shows: | | |

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|INTAKE OUTPUT | | |

|IV Fluids 1050 mL Total = 1486mL | |1109mL |

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|Oral Fluids 225 mL Drain | | |

|92mL | | |

|Vomit 285mL | | |

|Urine ? | | |

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|How much urine has Saoirse passed in the past 24 hours? | | |

|Question 11 | | |

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|Karen’s fluid balance chart for 24 hours shows: | | |

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|INTAKE: 1652mL | | |

|OUTPUT: 1405mL | |1379mL |

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|If 273mL of intake was oral, how much IV fluids did Karen receive over | | |

|the 24 hour period? | | |

|Question 12 | | |

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|Sarah’s fluid balance chart for 24 hours shows: | | |

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|INTAKE OUTPUT | | |

|IV Fluids 944 mL Urine 679mL | |583mL |

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|Oral Fluids 460 mL Drain | | |

|142mL | | |

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|How much greater is her input to her output? | | |

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|Question 13 | | |

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|A woman is prescribed 250mg of pethidine. The stock dose is 50mg/2mL | | |

|ampule. | |There is no question!|

| | |Answers will probably|

| | |be 5 ampoules or 10 |

| | |ml, depending on what|

| | |they want. |

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|Question 14 | | |

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|A patient is prescribed 100 micrograms of levothyroxine. The tablet | | |

|dose is 50 micrograms. How many tablets will she require? | |2 tablets |

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|Question 15 | | |

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|A mother is prescribed 8000iu of enoxaparin sodium. The stock dose is | | |

|10,000iu in 5mL. What volume is required? | |4 mL |

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|Question 16 | | |

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|A woman is prescribed 300mg of ampicillin every 12 hours. If the ward | | |

|stock is 100mg per tablet, how many tablets will she need for a 24 hour | | |

|period? | |6 tablets |

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|Question 17 | | |

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|A mother is prescribed 40iu of syntocinon in 500mL of 0.9% saline. The | | |

|ward stock has 2mL vials of 10iu/2mL. What volume of syntocinon will | |8 mL |

|you need to add to the infusion? | | |

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|Question 18 | | |

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|A pediatric suspension of amoxil contains 50mg/2mL. How many milligrams | | |

|would you administer in 1mL? | |25 mg |

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|Question 19 | | |

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|A woman is prescribed 20mL of lactulose. If the dosage is 2.4g per 5mL,| | |

|what dose is the woman receiving? | | |

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| | |9.6g |

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|Question 20 | | |

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|40mg of paracetamol elixir is required for a baby. The ward stock is | | |

|100gm/5mL. What volume is required? | |2 mL |

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