Formula sheets, the key method steps for every topic and 6 practice problems, with full solutions at the back.
Which statement reflects current guidance about introducing allergenic foods, such as egg and peanut, to infants?
The parents of a child who is being resuscitated ask to stay in the room. What is the best response?
Practice exercise (made-up values, not clinical guidance). An infusion of 100 units of regular insulin in 250 mL runs at 7.5 mL/h. How many units per hour D does the patient receive?
Practice exercise (made-up values, not clinical guidance). A patient who weighs 69 kg has an order for nitroglycerin at 20 mcg/min. The bag contains 25 mg in 250 mL. Find the pump rate R 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 500 mL bag was started at 14:00 and runs by pump at 50 mL/h. How many mL V are left in the bag at 19:30?
Answer: C · They can be introduced from around 6 months as part of solids, and delaying them does not prevent allergy
Delaying common allergens does not prevent allergy, and early introduction may reduce the risk of peanut allergy. Peanut is given as smooth butter or powder, never whole nuts; infants with severe eczema or known food allergy may need specialist advice first.
Answer: C · Allow them to stay if they wish, with a staff member to support and explain
Many families want to be present, and guidelines support offering this with a dedicated staff member to explain and support them. Family presence can help with grief and does not generally interfere with resuscitation.
Answer: D = 3 units/h
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 = 12 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.
The order is per minute for the whole patient, so the weight is not needed.
Answer: I = 1610 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: V = 225 mL
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.
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