The Ultimate iHuman Clinical Simulation & Study
Guide: Dan Jones (42 y/o) – A Step-by-Step Approach to
Diarrhea Evaluation, Differentiating Infectious vs. Non-
Infectious Etiologies, and Implementing Evidence-Based
Management | Graded A+ | 2026/2027
,
, TABLE OF CONTENTS
PART I: CASE FOUNDATIONS
1. Case Overview and Patient Demographics
2. Chief Complaint and History of Presenting Illness
3. Review of Systems and Past Medical History
4. Physical Examination Findings
PART II: DIFFERENTIAL DIAGNOSIS CONSTRUCTION
5. The Clinical Reasoning Framework for Acute Diarrhea
6. Infectious Etiologies – Viral Causes
7. Infectious Etiologies – Bacterial Causes
8. Infectious Etiologies – Parasitic Causes
9. Non-Infectious Etiologies – Medication-Induced
10. Non-Infectious Etiologies – Inflammatory Bowel Disease
11. Non-Infectious Etiologies – Celiac Disease and Malabsorption
12. Non-Infectious Etiologies – Irritable Bowel Syndrome
13. Must-Not-Miss Diagnoses – C. difficile Infection
14. Must-Not-Miss Diagnoses – Severe Dehydration and Sepsis
15. Differential Diagnosis Summary and Prioritization
PART III: DIAGNOSTIC WORKUP STRATEGY
16. When to Perform Stool Testing – Evidence-Based Indications
17. Laboratory Studies – Serum and Inflammatory Markers
18. Advanced Diagnostic Modalities
19. Diagnostic Algorithm for Acute Diarrhea
PART IV: EVIDENCE-BASED MANAGEMENT
, 20. Rehydration Therapy – The Cornerstone of Treatment
21. Dietary Management and Nutritional Support
22. Symptomatic Management – Loperamide and Beyond
23. Antimicrobial Therapy – Indications and Selection
24. Pathogen-Specific Treatment Regimens
25. Management of Traveler's Diarrhea
26. Special Populations and Considerations
PART V: CLINICAL REASONING APPLIED TO DAN JONES
27. Step-by-Step Case Analysis
28. Complete SOAP Note Documentation
29. Patient Education and Discharge Instructions
30. Follow-Up and Safety-Netting Plan
PART VI: 2026/2027 UPDATES AND REFERENCES
31. Key 2026/2027 Clinical Practice Updates
32. Antibiotic Stewardship in Acute Diarrhea
33. References and Additional Resources
PART I: CASE FOUNDATIONS
1. Case Overview and Patient Demographics
Patient Profile
Attribute Detail
Name Dan Jones
Age 42 years
Sex Male
Height 5'10" (178 cm)
Guide: Dan Jones (42 y/o) – A Step-by-Step Approach to
Diarrhea Evaluation, Differentiating Infectious vs. Non-
Infectious Etiologies, and Implementing Evidence-Based
Management | Graded A+ | 2026/2027
,
, TABLE OF CONTENTS
PART I: CASE FOUNDATIONS
1. Case Overview and Patient Demographics
2. Chief Complaint and History of Presenting Illness
3. Review of Systems and Past Medical History
4. Physical Examination Findings
PART II: DIFFERENTIAL DIAGNOSIS CONSTRUCTION
5. The Clinical Reasoning Framework for Acute Diarrhea
6. Infectious Etiologies – Viral Causes
7. Infectious Etiologies – Bacterial Causes
8. Infectious Etiologies – Parasitic Causes
9. Non-Infectious Etiologies – Medication-Induced
10. Non-Infectious Etiologies – Inflammatory Bowel Disease
11. Non-Infectious Etiologies – Celiac Disease and Malabsorption
12. Non-Infectious Etiologies – Irritable Bowel Syndrome
13. Must-Not-Miss Diagnoses – C. difficile Infection
14. Must-Not-Miss Diagnoses – Severe Dehydration and Sepsis
15. Differential Diagnosis Summary and Prioritization
PART III: DIAGNOSTIC WORKUP STRATEGY
16. When to Perform Stool Testing – Evidence-Based Indications
17. Laboratory Studies – Serum and Inflammatory Markers
18. Advanced Diagnostic Modalities
19. Diagnostic Algorithm for Acute Diarrhea
PART IV: EVIDENCE-BASED MANAGEMENT
, 20. Rehydration Therapy – The Cornerstone of Treatment
21. Dietary Management and Nutritional Support
22. Symptomatic Management – Loperamide and Beyond
23. Antimicrobial Therapy – Indications and Selection
24. Pathogen-Specific Treatment Regimens
25. Management of Traveler's Diarrhea
26. Special Populations and Considerations
PART V: CLINICAL REASONING APPLIED TO DAN JONES
27. Step-by-Step Case Analysis
28. Complete SOAP Note Documentation
29. Patient Education and Discharge Instructions
30. Follow-Up and Safety-Netting Plan
PART VI: 2026/2027 UPDATES AND REFERENCES
31. Key 2026/2027 Clinical Practice Updates
32. Antibiotic Stewardship in Acute Diarrhea
33. References and Additional Resources
PART I: CASE FOUNDATIONS
1. Case Overview and Patient Demographics
Patient Profile
Attribute Detail
Name Dan Jones
Age 42 years
Sex Male
Height 5'10" (178 cm)
