Exam Guide

ATI Med-Surg Proctored Exam: What It Covers & How to Pass

The ATI Adult Medical-Surgical proctored exam (usually just "ATI Med-Surg") is the largest and broadest of the ATI content mastery exams. It covers every adult body system, and it asks you to recognise complications early, prioritise between deteriorating clients, and choose the right nursing intervention — often with a lab value or a set of vital signs as the only clue.

Because it is so wide, the way you organise your study matters more here than on any other ATI exam. This page explains what the exam covers, how it is scored, and how to study by system without drowning. For the general rules of ATI proctored testing, start with our main ATI proctored exams guide.

What does the ATI Med-Surg proctored exam cover?

The blueprint groups content by body system and by nursing concern. The heavily weighted areas are:

Cardiovascular and hematologic — heart failure, acute coronary syndrome, dysrhythmias, hypertension, peripheral vascular disease, shock, anemia, anticoagulation and transfusion reactions.
Respiratory — asthma, COPD, pneumonia, tuberculosis, pulmonary embolism, pneumothorax and chest tubes, oxygen therapy, tracheostomy care, ABG interpretation.
Endocrine — diabetes (DKA vs HHS, hypoglycaemia, insulin management), thyroid and adrenal disorders, SIADH and diabetes insipidus.
Renal and fluid/electrolyte — acute kidney injury and chronic kidney disease, dialysis, urinary tract disorders, sodium, potassium, calcium and magnesium imbalances, acid–base.
Neurological — stroke, increased intracranial pressure, seizures, spinal cord injury, Parkinson's, multiple sclerosis, Guillain-Barré, myasthenia gravis.
Gastrointestinal and hepatic — GI bleeding, peptic ulcer disease, bowel obstruction, inflammatory bowel disease, cirrhosis and hepatic encephalopathy, pancreatitis, ostomy care.
Musculoskeletal and integumentary — fractures and compartment syndrome, hip and knee arthroplasty, osteoporosis, burns, pressure injuries, wound care.
Oncology, immune and infection — chemotherapy side effects and neutropenic precautions, HIV, sepsis, isolation precautions.
Perioperative care — preoperative teaching and consent, immediate postoperative priorities, complications (atelectasis, DVT, wound dehiscence, ileus).
Emergency and disaster — triage, anaphylaxis, hypovolaemic and septic shock, basic emergency priorities.

Almost every question is an application or analysis item. Expect select-all-that-apply, exhibit items with lab reports, and priority ("which client should the nurse assess first?") questions.

Format, length and scoring

ATI Med-Surg is longer than the other content mastery exams: typically around 90 scored items with about 90 minutes. Program settings and exam versions vary, so confirm the details with your instructor. Ninety minutes of dense clinical scenarios is a stamina test in its own right — plan for it.

ATI reports a percentage and a proficiency level with cut scores specific to this exam. Most programs require a Level 2 or better, and many use the Med-Surg result as a heavier component of the course grade because of its breadth. Read your syllabus for the exact policy.

Why students struggle with ATI Med-Surg

Trying to memorise every disease. There are too many. The exam actually tests a smaller set of patterns: recognising deterioration, knowing the priority intervention, and knowing what to teach. Study the patterns and the diseases come with them.
Not knowing lab values cold. A potassium of 6.1, a troponin rise, a pH of 7.28 with a CO₂ of 55 — if you have to think about whether these are abnormal you have already lost the time you need to answer the question.
Prioritisation. "Which client should the nurse see first?" items are the hardest on the exam. Airway, breathing and circulation come first; then acute versus chronic; then unstable versus stable; then unexpected versus expected findings.
Fatigue. Scores frequently drop in the final third of the exam. If you have never done 90 questions in one sitting, do so before test day.

How to study for the ATI Med-Surg proctored exam

1. Diagnose first

Take 50–60 mixed ATI-style Med-Surg questions before you open a book. Log the body system and the reason for each miss. This tells you where the four weeks go.

2. Study by system, one per day or two

For each system, focus on the same five things: the top conditions on the blueprint, the early and late signs of each, the priority nursing interventions, the key medications and their monitoring, and the client teaching. A single page per system is enough if you have chosen the right content.

3. Learn the "early sign" list

Restlessness and tachycardia in hypovolaemic shock; change in level of consciousness in increased ICP, hypoxia and hepatic encephalopathy; new confusion in an older adult with infection; pain unrelieved by opioids in compartment syndrome; sudden dyspnoea and chest pain after immobility in pulmonary embolism. The exam rewards catching problems early.

4. Master labs and ABGs

Write out normal ranges for sodium, potassium, calcium, magnesium, glucose, BUN, creatinine, haemoglobin, platelets, WBC, INR, aPTT, troponin, BNP and the ABG values, and practise interpreting them until it is automatic. Use ROME (Respiratory Opposite, Metabolic Equal) for ABGs.

5. Practise prioritisation deliberately

Do sets of priority questions and write down the rule you used for each. Over time you will notice the same handful of rules deciding almost every item.

6. Sit two full-length timed exams

Ninety questions, ninety minutes, no breaks, then a full rationale review. Do this in the final week. Our complete ATI study method shows how to fit the whole plan into four weeks or two.

Sample ATI Med-Surg question

A nurse is assessing a client who is 2 hours postoperative following a total hip arthroplasty. Which of the following findings should the nurse report to the provider first?

Pain of 6 on a 0–10 scale at the surgical site
Serosanguineous drainage on the dressing
Urine output of 40 mL/hr
Shortened, externally rotated affected leg

Answer: D. A shortened, externally rotated leg after hip arthroplasty is a classic sign of prosthetic dislocation and requires immediate intervention. Moderate incisional pain (A), serosanguineous drainage (B) and a urine output above 30 mL/hr (C) are all expected findings in the early postoperative period. The question tests whether you can separate the one unexpected finding from three expected ones — the core skill of the Med-Surg exam.

ATI Medical-Surgical practice questions

Reading about med-surg is not the same as answering med-surg questions under time pressure. Work through the funnel in this order:

Free questions first. Try our free ATI-style Medical-Surgical practice questions — 96 original items, one at a time, with the rationale revealed after every answer. No account needed.
Structured review. The ATI RN Medical-Surgical Study Guide is a printable PDF that walks the blueprint in order with a full question bank and rationales.
Full-length practice. When your error log is thinning out, sit a timed set of 90 questions in one go to check pacing and stamina, then review every rationale — right and wrong.
Everything, all subjects. The Full Virtual Support Suite bundles every RN topic's complete question bank with structured lessons and full-length exams, if you are preparing for several proctored exams this term.

ATI Med-Surg proctored exam FAQ

How many questions are on the ATI Med-Surg proctored exam?

Typically around 90 scored items with about 90 minutes — longer than the other ATI content mastery exams. Your program will confirm the version and timing.

What score do I need to pass ATI Med-Surg?

Your school sets the requirement, usually a Level 2 or higher. The percentage needed for each level is specific to the Med-Surg exam.

Is ATI Med-Surg the hardest ATI exam?

It is the one students most often name, mainly because of its breadth and length. Focused, system-by-system study with plenty of practice questions makes it very passable. See our comparison of the ATI exams.

Is there a separate PN Med-Surg exam?

Yes — the PN Adult Medical-Surgical exam has its own blueprint and scope. PN students should use the PN Medical-Surgical study guide and PN quiz topics.

Which topics should I prioritise if I am short on time?

Cardiovascular, respiratory, endocrine (especially diabetes), fluid and electrolytes, and perioperative care. Then labs and ABGs. Then practice questions with rationales.