Practical prescribing: management of anaemia: answers

To the nearest whole milligram, how many moles of elemental iron are there in each 200 mg ferrous sulfate tablet?

Given that the absorption of iron from ferrous sulfate is only around 5–15% (electronic Medicines Compendium (eMC), 2018a), how much elemental iron can be expected to be absorbed from a normal treatment dose per day?

If a patient is started on therapeutic iron when their Hb was 6 g/dL, how long would you expect it to take to reach a target concentration of 12 g/dL?

Given that 1 dL is 100 ml, convert the patient's current Hb level (6 g/dL) to g/L.

For the patient in question 3, how much CosmoFer would need to be added to a 500 ml bag of saline to give the total single dose infusion if they weighed 45 kg? The assumed iron stores for an adult are 500 mg; CosmoFer contains 50 mg/mL of elemental iron (eMC, 2018b).