NCLEX-RN · Client-needs page 6 · 3 min read

NCLEX-RN client-needs category for 13 to 19% of items, the second largest: rights of medication administration, dosage calculations, IV and central lines, blood products, high-risk drugs, controlled substances, pain medication and parenteral nutrition. What it covers, how it is tested, two worked calculations and the usual traps.

What this category covers

This is the medication category, and at 13 to 19% of scored items it is the second largest in the 2026 test plan.

The activity list covers, in short:

• Before giving: checking that an order is appropriate and accurate; reviewing contraindications, lab results, allergies and interactions; medication reconciliation.
• Giving: the rights of medication administration, calculations, titrating to ordered parameters, pain medication, high-risk medications, controlled substances.
• IV therapy: monitoring infusions and sites, central venous access devices, blood products, parenteral nutrition.
• After giving: evaluating the client's response, teaching the client about their medications.
• Handling: safe storage, handling and disposal.

How it is usually tested

Expect calculation items with a box for the number (the item tells you whether to round to a whole number or to one or two decimal places, and you round only at the end), single-answer items on what to check before giving a drug, select-all-that-apply items on adverse effects or teaching, and matrix grids pairing drugs with the finding that should make you hold them. Drugs are named by their generic names. An on-screen calculator is available on the real exam.

Worked example 1 (our own): an infusion rate

Heparin 1,000 units/h IV is prescribed. The bag contains heparin 25,000 units in 250 mL. At what rate in mL/h should the pump be set?

• Concentration: 25,000 units / 250 mL = 100 units/mL.
• Rate: 1,000 units/h / 100 units per mL = 10 mL/h.

Heparin is a high-alert drug: a second nurse checks the order, the bag and the pump, and the dose is adjusted by the facility's protocol using the aPTT or anti-factor Xa result.

Worked example 2 (our own): a weight-based dose

Acetaminophen 15 mg/kg PO is prescribed for a child who weighs 20 kg. The suspension is 160 mg per 5 mL. How many mL should the nurse give? Round to one decimal place.

• Dose: 15 mg x 20 kg = 300 mg (the dose basis is the prescribed 15 mg/kg).
• Volume: 300 mg / 160 mg x 5 mL = 9.375 mL, rounded at the end to 9.4 mL.

Check the answer makes sense: 300 mg is a little under twice 160 mg, so a little under 10 mL is right.

Common pitfalls

• Rounding too early. Carry full numbers through and round once, at the end.
• Mixing units. Convert first: 1 g = 1,000 mg; 1 mg = 1,000 mcg; 1 kg = 2.2 lb.
• Giving without the check. Typical holds: a heart rate below the ordered limit before a beta-blocker or digoxin, a low potassium before a loop diuretic, a low blood pressure before an antihypertensive. The item usually gives the number in the chart: find it.
• Blood products. Two-person identity check, 0.9% sodium chloride only in the line, stay with the client for the first 15 minutes, and stop the transfusion at once for a suspected reaction.
• Potassium. IV potassium is never given as a push; it is diluted and given by pump.
• Teaching without evaluating. Ask the client to tell you how and when they will take the drug and what to watch for.

Category names and percentage ranges: NCSBN, 2026 NCLEX-RN Test Plan (effective April 1, 2026 to March 31, 2029). Portions copyrighted by the National Council of State Boards of Nursing, Inc. All rights reserved. Calculation rules: NCLEX FAQs (nclex.com). Explanations and examples are our own.