100% IHUMAN CASE STUDY. 42-YEAR
OLD, DAN JONES. REASON FOR
ENCOUNTER: DIARRHEA.
,CASE OVERVIEW
Category Details
Patient Name Dan Jones
Age/Sex 42-year-old Male
Setting Outpatient Primary Care Clinic
Reason for Encounter Diarrhea
Duration 3 days
Case Type i-Human Virtual Patient Simulation
Grading A+ (2026/2027)
Dan Jones is a 42-year-old male who presents to an outpatient primary care clinic
with a 3-day history of acute-onset watery diarrhea. The case focuses on evaluating
infectious versus non-infectious causes, identifying red-flag symptoms,
appropriate diagnostic testing, and evidence-based management while preventing
complications such as dehydration and electrolyte imbalance.
CHIEF COMPLAINT (CC)
"I've had nonstop diarrhea for the last three days."
HISTORY OF PRESENTING ILLNESS (HPI)
,Dan Jones reports a 3-day history of frequent loose stools, occurring
approximately 6–8 times per day. The stools are described as:
• Watery in consistency
• Brown in color
• Non-bloody (no hematochezia or melena)
• No mucus present
Associated Symptoms:
• Lower abdominal cramping (crampy, diffuse, rated 4/10)
• Bloating and urgency to defecate
• Pain relieved temporarily after bowel movements
• Nausea (denies vomiting)
• Reduced appetite
• Mild dizziness when standing (orthostatic symptoms)
Denies:
• Fever or chills
• Hematochezia (blood in stool)
• Melena (black, tarry stools)
• Mucus in stool
Exposure History:
• Recently attended a family gathering where several people later
developed similar symptoms
• Denies recent international travel
• Denies recent antibiotic use or hospitalization
• Denies recent camping or freshwater ingestion
• Has eaten from street vendors occasionally
Hydration Status:
, • Symptoms have persisted despite oral hydration at home
• Reports decreased urine output over the last 24 hours
PAST MEDICAL HISTORY (PMH)
Condition Status
Hypertension Well controlled
Inflammatory Bowel Disease (IBD) None
Irritable Bowel Syndrome (IBS) None
Chronic renal disease None
Heart failure None
Immunocompromising conditions None
PAST SURGICAL HISTORY (PSH)
• Appendectomy at age 19
MEDICATIONS & ALLERGIES
OLD, DAN JONES. REASON FOR
ENCOUNTER: DIARRHEA.
,CASE OVERVIEW
Category Details
Patient Name Dan Jones
Age/Sex 42-year-old Male
Setting Outpatient Primary Care Clinic
Reason for Encounter Diarrhea
Duration 3 days
Case Type i-Human Virtual Patient Simulation
Grading A+ (2026/2027)
Dan Jones is a 42-year-old male who presents to an outpatient primary care clinic
with a 3-day history of acute-onset watery diarrhea. The case focuses on evaluating
infectious versus non-infectious causes, identifying red-flag symptoms,
appropriate diagnostic testing, and evidence-based management while preventing
complications such as dehydration and electrolyte imbalance.
CHIEF COMPLAINT (CC)
"I've had nonstop diarrhea for the last three days."
HISTORY OF PRESENTING ILLNESS (HPI)
,Dan Jones reports a 3-day history of frequent loose stools, occurring
approximately 6–8 times per day. The stools are described as:
• Watery in consistency
• Brown in color
• Non-bloody (no hematochezia or melena)
• No mucus present
Associated Symptoms:
• Lower abdominal cramping (crampy, diffuse, rated 4/10)
• Bloating and urgency to defecate
• Pain relieved temporarily after bowel movements
• Nausea (denies vomiting)
• Reduced appetite
• Mild dizziness when standing (orthostatic symptoms)
Denies:
• Fever or chills
• Hematochezia (blood in stool)
• Melena (black, tarry stools)
• Mucus in stool
Exposure History:
• Recently attended a family gathering where several people later
developed similar symptoms
• Denies recent international travel
• Denies recent antibiotic use or hospitalization
• Denies recent camping or freshwater ingestion
• Has eaten from street vendors occasionally
Hydration Status:
, • Symptoms have persisted despite oral hydration at home
• Reports decreased urine output over the last 24 hours
PAST MEDICAL HISTORY (PMH)
Condition Status
Hypertension Well controlled
Inflammatory Bowel Disease (IBD) None
Irritable Bowel Syndrome (IBS) None
Chronic renal disease None
Heart failure None
Immunocompromising conditions None
PAST SURGICAL HISTORY (PSH)
• Appendectomy at age 19
MEDICATIONS & ALLERGIES
