iHuman Case Study — Layla Stevens (18‑Month‑Old Female) Reason for Encounter: Vomiting and Diarrhea Complete “A+” Comprehensive Study Guide | 2026 Edition

iHuman Case Study — Layla Stevens (18‑Month‑Old
Female) Reason for Encounter: Vomiting and Diarrhea
Complete “A+” Comprehensive Study Guide | 2026
Edition

,
,TABLE OF CONTENTS
SECTION 1: Case Overview & Patient Demographics ...... 1

SECTION 2: Chief Complaint & History of Presenting Illness (HPI) ...... 3

SECTION 3: Past Medical History (PMH) ...... 6

SECTION 4: Family History ...... 7

, SECTION 5: Social History & Developmental Milestones ...... 8

SECTION 6: Review of Systems (ROS) ...... 9

SECTION 7: Physical Examination Findings ...... 11

SECTION 8: Diagnostic Tests & Laboratory Interpretation ...... 14

SECTION 9: Differential Diagnosis (DDx) ...... 16

SECTION 10: Final Diagnosis & Clinical Reasoning ...... 19

SECTION 11: Management Plan & Treatment ...... 21

SECTION 12: Medications ...... 24

SECTION 13: SOAP Note Documentation ...... 25

SECTION 14: Parent/Caregiver Education ...... 27

SECTION 15: Return Precautions & Follow-Up ...... 29

SECTION 16: Pathophysiology of Acute Viral Gastroenteritis ...... 30

SECTION 17: Nursing Considerations & Interventions ...... 32

SECTION 18: Practice Questions for Exam Preparation ...... 34

References ...... 35




SECTION 1: Case Overview & Patient Demographics

Patient Information

Characteristic Detail

Name Layla Stevens

Age 18 months

Sex Female