Most tested topics on the NCLEX-RN: what the official percentages show
Written and reviewed by Rachel Goldberg, MSN, RN, CEN · 3 min read · Updated November 2026
Short answer
The most tested area on the NCLEX-RN is Management of Care, at 15 to 21 percent of items under the 2026 test plan, followed by Pharmacological and Parenteral Therapies at 13 to 19 percent and Physiological Adaptation at 11 to 17 percent. NCSBN publishes no ranking of individual diseases or drugs, so any list of single high-yield topics is an estimate.
The eight categories, ranked by NCSBN's percentages
The 2026 NCLEX-RN Test Plan, in effect from April 1, 2026 through March 31, 2029, gives each Client Needs category a range. Ranked by the top of each range: Management of Care 15 to 21 percent, Pharmacological and Parenteral Therapies 13 to 19, Physiological Adaptation 11 to 17, Safety and Infection Prevention and Control 10 to 16, and Reduction of Risk Potential 9 to 15.
The last three share one range of 6 to 12 percent: Health Promotion and Maintenance, Psychosocial Integrity, and Basic Care and Comfort. Together that is 18 to 36 percent of the content items, so least tested does not mean safe to skip. Leaving them out leaves up to about a third of the content items to chance.
How much pharmacology is on the NCLEX-RN?
Pharmacological and Parenteral Therapies is 13 to 19 percent. The test plan says a minimum-length exam of 85 items contains 52 items from the eight content areas, 18 clinical judgment case study items and 15 unscored pretest items. Applying the range to those 52 gives roughly 7 to 10 pharmacology items on the shortest exam, and more on a longer one.
That count understates what you will see. The three case studies span any content area and are counted separately, so a heart failure or sepsis case can ask about a medication without that item counting toward the pharmacology share. The category itself covers dosage calculations, IV and central line care, blood products, titration, high-risk medications and medication teaching.
Why most-tested topic lists are not official
NCSBN publishes the category percentages and, inside each category, activity statements drawn from its 2024 RN Practice Analysis. It does not publish how often a single disease, drug class or lab value appears. A claim that one condition is the most tested on the exam cannot be checked against anything NCSBN releases.
The activity statements are the closest official thing to a topic list. Management of Care, for example, lists delegating and supervising care, prioritizing by acuity, handoff report, advocacy, verifying consent, advance directives, confidentiality and mandatory reporting. Reduction of Risk Potential lists vital sign trends, diagnostic results, and preoperative and postoperative care. Study from those lines, in the order of the percentages above.
Where clinical judgment fits
Clinical judgment is measured on top of the categories: 18 case study items in three item sets, plus about 10 percent stand-alone items. Each case study has six items that follow the NCSBN Clinical Judgment Measurement Model: recognize cues, analyze cues, prioritize hypotheses, generate solutions, take action and evaluate outcomes.
This changes what high yield should mean. A fact you know cold still has to be applied to a client whose condition unfolds across six items. Memorizing lists from the top categories prepares you for part of the exam; it does not prepare you for the case study sets, which make up 18 of the first 85 items.
Sources
NCSBN: 2026 NCLEX-RN Test Plan. Category percentages, 52/18/15 split of the 85-item minimum exam, case study items and stand-alone clinical judgment items, activity statements.
NCSBN: NCLEX Test Plans. 2026 RN test plan effective April 1, 2026 through March 31, 2029.
Common questions
What topics are most tested on the NCLEX-RN?
By official weight: Management of Care (15 to 21 percent), Pharmacological and Parenteral Therapies (13 to 19 percent) and Physiological Adaptation (11 to 17 percent). NCSBN does not rank individual diseases or drugs.
Is there a lot of pharmacology on the NCLEX?
It is the second-largest category at 13 to 19 percent, about 7 to 10 of the 52 content items on a minimum-length exam. Medications can also appear inside case studies, which are counted separately.
Did the most tested topics change with the 2026 test plan?
The 2026 plan runs from April 1, 2026 to March 31, 2029 and is based on the 2024 RN Practice Analysis. Our guide to the 2026 test plan changes compares it with the previous plan.