Clinical Reasoning

Think like an expert clinician.

In medicine, every decision matters.
Clinical Reasoning is the thinking skill that drives accurate diagnoses, rational treatment choices, and safer patient care.
This book is your guide to mastering those skills.

Through a series of carefully crafted case studies, readers will explore how expert clinicians think: how they weigh probabilities, interpret clinical data, and navigate uncertainty. Each case is accompanied by detailed, evidence-based explanations that uncover the reasoning behind the decisions.

What You'll Learn

• Why a disease is never 'ruled-in' or 'ruled-out'
• The true role and limitations of diagnostic tests
• Strategies to reduce diagnostic errors
• How to choose a treatment

Designed for learners at all levels, this book progresses from straightforward cases to more nuanced scenarios, without relying on complex math. Key concepts are brought to life through clear diagrams and practical insights.

Whether you're a medical student, resident, faculty member, or a healthcare professional in nursing, pharmacy, or allied fields, this book is an essential resource for developing and refining your clinical reasoning skills.



CONTENTS

Part 1. Concepts in Clinical Reasoning
Combinations
Clues
Probability
Clinical Diagnosis
Differential Diagnosis
Clinical Calculators
Pretest Probability
Posttest Probability
Overlap
Accuracy of Tests
A Two-step Approach
Conditional Thinking
Diligence
Anomaly
Logic Errors
Medical Errors
Defensive Medicine
Diminishing Returns
Pathophysiology
Effect Size
Medical Decision Making
Titration
Follow-up
Prevention
Patient-Centered Care

Part 2. Diagnosing disease
Back Pain
Leg Swelling
Chest Pain
Diarrhea
Cough
Fever
Foot Pain
Headache
Shortness of Breath
Fatty Liver

Part 3. Communicating risk
Risk of Diabetes
Risk of Cardiac Events
Osteoporosis
Hepatic Failure
Breast Cancer Screening
Lung Cancer Risk
Resuscitation
Anesthesia Risk

Part 4. Choosing treatment
Obesity
Influenza
Heart Failure
Clots
Stents
Diabetes
End-of-Life


Appendices
Evidence Space
Clinical Outcomes
Effect Size Scale
Visual Risk Scale
Artificial Intelligence
Teaching Clinical Reasoning




Dr. M. Jawad Hashim is a professor of medicine and an attending physician. Board certified in Family Medicine (2002) after residency training at the University of Rochester, he provided clinic, inpatient and ICU care near Seattle, Washington before transitioning to academic medicine. A prolific author of over 300 articles, abstracts, and textbooks, he ranks among the top 2% of most-cited scientists worldwide.
In Clinical Reasoning, Prof. Hashim distills decades of clinical practice (managing thousands of patients) and scholarly insight into a case-based guide that uncovers the expert thought processes driving safe, effective patient care.