The Diagnostic Reasoning Mastery Course

Mastery is a journey, not a destination.

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This course teaches you how to strengthen diagnostic reasoning in everyday practice, to make confident decisions with your patients.

Why does diagnostic reasoning matter? Because it’s the foundation of safe, confident clinical practice. If you’ve ever second-guessed a decision after a patient encounter, felt uncertain about a complex case, or worry about medical errors — this course was built for you.

Diagnostic reasoning isn’t an innate talent. It’s a trainable, repeatable skill. Like any skill, it improves with the right teaching, feedback, and practice.

This course teaches you how expert clinicians think, and how you can strengthen your own diagnostic reasoning in everyday practice, no matter where you are in your clinical journey.

Choose your path

Whether you want a preview or the full experience, you’ll get practical, case-based strategies to strengthen diagnostic reasoning.

Try the first 3 modules (Free)

A full taste of the course + hands-on practice.

Great for exploring first
  • First 3 modules with video content
  • Written content + curated resources
  • Interactive case practice
  • Downloadable certificate
  • Lifetime access
Start the free modules

Get the full course for $249.99

Everything you need to build confident clinical reasoning.

Best value
  • 10 modules, 38 lessons, ~5 hours to complete, ~2.5 hours of video content
  • Interactive case practice with key learning points
  • Written materials + Diagnostic Reasoning Pocket Book
  • Downloadable certificate of completion
  • Unlimited lifetime access
Enroll in the full course
Unused professional development funding?
This is a perfect course to use it on—practical, case-based, and built to strengthen your clinical reasoning in day-to-day practice.

NPAO members receive an exclusive 25% discount between February 17 - February 24.

Log into your account to access!

Course at a glance

The Diagnostic Reasoning Mastery Course

Learn how expert clinicians think and strengthen your own diagnostic reasoning in everyday practice. If you’ve ever second-guessed a decision, felt uncertain about a complex case, worried about medical errors, or simply want to strengthen your thinking habits, this course was built for you.

✓ 10 modules, 38 lessons, 2.5 hours of video content
✓ Interactive case practice with key learning points
✓ Written materials + diagnostic reasoning pocket book
✓ Downloadable certificate of completion (~5 hour course)
✓ Unlimited lifetime access

Cirriculum

    • Systems framework

    • Mechanisms framework

    • Anatomic Framework

    • Checklist/Mnemonic Framework

    • Illness scripts + problem representation

    • With loads of case examples!

    • The Power of Pre-Test Probability

    • Sensitivity and specificity made simple

    • Positive and negative predictive values made practical

    • The strength of likelihood ratios in the diagnostic process

    • Clinical decision rules: Pros and cons

    • With loads of case examples!

    • The most common cognitive biases in medicine

    • System 1 and 2 thinking

    • How to avoid cognitive biases

    • How to minimize medical errors

    • Being cautious with algorithms and guidelines

    • With loads of case examples!

    • Communicating the perfect case summary

    • SOAP documentation do’s & don’ts

    • Documentation tips for success (efficiency + accuracy!)

    • Apply all you’ve learned with tricky clinical cases

    • Test your knowledge with several interactive primary care cases

    • Practical strategies to build stronger reasoning into your practice

    • How to teach clinical reasoning

    • Develop cognitive habits to reduce medical errors

    • A few of my favourite resources

Who This Course Is For

✔ Nurse Practitioners, physicians, physician assistants, trainees, and any clinician wanting to strengthen their reasoning
✔ Clinicians who want to feel confident with any case that comes their way
✔ Anyone interested in reducing diagnostic errors and uncertainty

Testimonials

  • Testimonial from Allan Lai, Nurse Practitioner

    This course teaches real clinical thinking. You learn the rationale behind why or why you don't do something, not just the checklist, so your decisions are grounded, defensible, and truly evidence based!

    This program is a must for any NP student or clinician looking to level up. 

  • Testimonial from Ashley Brown, RN, NP Student

    I absolutely LOVED this course. The interactive case was engaging, and I really appreciated how complex topics were broken down in a clear, practical way that actually makes sense in real clinical practice.

    I would absolutely recommend this course to any clinician who wants to strengthen their clinical reasoning and feel more confident in how they think through patient cases.

  • Testimonial from Jonelle Ruby, Nurse Practitioner

    The Diagnostic Reasoning Mastery Course helps nurse practitioners refine how they think, not just what they know. It improves diagnostic accuracy, supports structured clinical reasoning, and ultimately leads to better patient outcomes.

  • Testimonial from Dr. Lisa Creelman, DNP, NP

    This course is a great primer to the concepts needed to develop and hone clinical reasoning skills for nurse practitioners and nurse practitioner students alike.

    We need more resources like this course that support practitioner critical thinking, not only in differential diagnosis development, but also in the intentional selection of diagnostic investigations and in treatment management decision-making to avoid over-investigating and over-treating.

    I am excited to see the full course when it becomes available!

  • Testimonial from Jillian Burfoot, RN, NP student

    This course really challenged my critical thinking when approaching diagnostic reasoning as an NP student. Learning was made approachable with the step by step process of the instructor led videos and interactive case studies.

  • Jessica Morrow, RN, TRU NP student

    This course was too valuable. I loved that you simplified concepts and applied to real world situations. The final example that we worked through diagnostic reasoning was fabulous! I hope to complete your full course in the future! Always enjoy your material.

  • Testimonial from Andrea, RN, NP Student

    I thoroughly enjoyed the introduction to Vicky's course! It was engaging, well-structured, and directly applicable to my studies as an NP student. I’m genuinely looking forward to diving into the full meal deal and experiencing all the content in greater depth.

    I particularly appreciated the interactive case as it made the learning feel practical and relevant, helping connect the dots between theory and practice. I also found the ‘Make It Stick’ tips highly valuable. These simple strategies are immediately applicable to reinforce and retain what I’m learning. Overall, this intro left me feeling motivated and excited for the full course.