Formula sheets, the key method steps for every topic and 6 practice problems, with full solutions at the back.
A 12-year-old with type 1 diabetes will play a long football match. What should the nurse advise?
The nurse has taught the parents of a child with epilepsy. Which statement shows a need for further teaching?
Practice exercise (made-up values, not clinical guidance). A practice protocol calls for a heparin bolus of 70 units/kg for a patient who weighs 101 kg. The vial contains 1 000 units/mL. What volume V do you draw up? Round to one decimal place.
Practice exercise (made-up values, not clinical guidance). A bag contains dobutamine 500 mg in 250 mL. The order is 5 mcg/kg/min for a patient who weighs 99 kg. At what rate R do you set the pump, in mL/h? Round to one decimal place.
Practice exercise (made-up values, not clinical guidance). The record shows a patient's intake and output for one 12-hour shift. The IV infusion ran at the rate shown for the whole shift. Find the total intake I in mL.
Practice exercise (made-up values, not clinical guidance). A 1000 mL bag runs by pump at 80 mL/h. At 14:00, 300 mL have already been infused. How many hours t until the bag is empty? Round to one decimal place.
Answer: C · Check glucose before playing and keep fast-acting carbohydrate at hand
Exercise increases glucose uptake by muscles, so hypoglycaemia can occur during or after sport, even overnight. Checking glucose, having extra carbohydrate and adjusting insulin as advised make sport safe and beneficial.
Answer: A · "I'll put a spoon in his mouth so he doesn't bite or swallow his tongue."
Putting objects in the mouth can break teeth, injure the mouth or block the airway; the tongue cannot be swallowed. Timing the seizure, protecting from injury and placing the child on the side afterwards are correct.
Answer: V = 7.1 mL
Heparin and insulin infusions: concentration = units in the bag/bag volume (units/mL). Pump rate (mL/h) = units per hour/concentration, and units per hour = mL/h × concentration. For a weight-based order, units/h = units/kg/h × weight first. A bolus volume = units needed/vial strength. The numbers are for practice only; at the bedside always follow local protocols and have high-risk doses double-checked.
Answer: R = 14.9 mL/h
Titrated drips: first find the concentration in mcg/mL (mg × 1000/mL). For a weight-based order, mcg/min = mcg/kg/min × weight. Then mL/h = mcg/min × 60/concentration. Working backwards, mcg/kg/min = mL/h × concentration/(60 × weight). The numbers are for practice only; at the bedside always follow local protocols and have high-risk doses double-checked.
Answer: I = 2300 mL
Intake and output: intake counts everything that goes in (oral fluids, IV infusions, IV medications and flushes, tube feeds); ice chips count as half their volume. Output counts urine, drains, vomit and other losses. Balance = total intake − total output; a negative balance is a net loss. The numbers are for practice only; at the bedside always follow local protocols and have high-risk doses double-checked.
Answer: t = 8.8 h
Infusion time: time (h) = volume to infuse (mL)/rate (mL/h); use the volume still left in the bag, not the bag size. Volume infused = rate × time. Convert decimal hours to hours and minutes with the fraction × 60 (0.5 h = 30 min, not 50 min). The numbers are for practice only; at the bedside always follow local protocols and have high-risk doses double-checked.
That is about 8 h 45 min, so the bag runs out at about 22:45.
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