Formula sheets, the key method steps for every topic and 6 practice problems, with full solutions at the back.
A pregnant woman takes an iron supplement. Which instruction improves its absorption?
A newborn in the first hours sneezes, has a high-pitched cry, tremors and loose stools. The mother took opioids throughout pregnancy. Which intervention is most appropriate first?
A patient weighs 60 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.
An infusion contains 25000 units of a drug in 1000 mL. The prescription is 1250 units per hour. At what rate R do you set the pump, in mL/h?
1000 mL was ordered over 8 hours. After 4 hours you find that 580 mL is still in the bag, and the order must still finish on time. To what rate R in mL/h must the pump be reset?
A drip runs at 42 gtt/min through a set of 60 gtt/mL. There are 750 mL left in the bag. How many hours t until it is empty? Round to one decimal place.
Answer: B · Take it with orange juice rather than with tea
Vitamin C increases iron absorption, while milk, calcium, antacids, tea and coffee reduce it. She should also expect dark stools and may need advice on preventing constipation.
Answer: C · A quiet, dim room, swaddling and small, frequent feeds
Neonatal abstinence (withdrawal) is managed first with non-drug care: low stimulation, swaddling, skin-to-skin, responsive feeding and rooming-in. Medication is added if scores stay high. Naloxone can precipitate seizures.
Answer: D = 600 mg
Dose calculation: the amount to give equals what is prescribed divided by what you have, times the quantity it comes in: amount = (desired dose/stock strength) × stock volume. Always keep the units the same (convert g to mg, mg to mcg first) and check that the answer is sensible.
Answer: R = 50 mL/h
Dose calculation: the amount to give equals what is prescribed divided by what you have, times the quantity it comes in: amount = (desired dose/stock strength) × stock volume. Always keep the units the same (convert g to mg, mg to mcg first) and check that the answer is sensible.
Answer: R = 145 mL/h
Infusion rates: a pump is set in mL/h = volume/time in hours. A gravity drip is counted in drops per minute: gtt/min = volume (mL) × drop factor (gtt/mL)/time (min). The drop factor is printed on the tubing package: macrodrip sets deliver 10, 15 or 20 gtt/mL (blood sets often 10 gtt/mL in the US, 15 in the UK) and microdrip sets 60 gtt/mL. Always use the drop factor the question or package gives.
Many hospitals allow such an adjustment up to 25% without a new order; check local policy.
Answer: t = 17.9 h
Infusion rates: a pump is set in mL/h = volume/time in hours. A gravity drip is counted in drops per minute: gtt/min = volume (mL) × drop factor (gtt/mL)/time (min). The drop factor is printed on the tubing package: macrodrip sets deliver 10, 15 or 20 gtt/mL (blood sets often 10 gtt/mL in the US, 15 in the UK) and microdrip sets 60 gtt/mL. Always use the drop factor the question or package gives.
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