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,i-Human Case Study: Layla Stevens, 18 Months Old
Reason for Encounter: Vomiting and Diarrhea
Exam Study Guide (Latest 2026/2027 Update)
1. CASE OVERVIEW
Patient: Layla Stevens, 18-month-old female
• Race: Caucasian
• Weight: 10.8–11.8 kg (23.8–26.0 lb)
• Height: 76–81 cm (2 ft 6 in)
• Location: Outpatient clinic with laboratory
capabilities
Chief Complaint: Vomiting and diarrhea
Informant: Mother (reliable historian)
2. HISTORY OF PRESENT ILLNESS (HPI) —
OLDCARTS
, Component Findings
Symptoms began approximately 24 hours
Onset
ago
Location Gastrointestinal tract
Vomiting started yesterday morning,
Duration
followed by diarrhea several hours later
Multiple episodes of non-bloody, non-
Characteristics bilious vomiting; frequent loose, watery
stools
Aggravating Eating solid foods; drinking large amounts
Factors of fluid quickly
Relieving Small sips of oral electrolyte solution
Factors tolerated better than large volumes
,i-Human Case Study: Layla Stevens, 18 Months Old
Reason for Encounter: Vomiting and Diarrhea
Exam Study Guide (Latest 2026/2027 Update)
1. CASE OVERVIEW
Patient: Layla Stevens, 18-month-old female
• Race: Caucasian
• Weight: 10.8–11.8 kg (23.8–26.0 lb)
• Height: 76–81 cm (2 ft 6 in)
• Location: Outpatient clinic with laboratory
capabilities
Chief Complaint: Vomiting and diarrhea
Informant: Mother (reliable historian)
2. HISTORY OF PRESENT ILLNESS (HPI) —
OLDCARTS
, Component Findings
Symptoms began approximately 24 hours
Onset
ago
Location Gastrointestinal tract
Vomiting started yesterday morning,
Duration
followed by diarrhea several hours later
Multiple episodes of non-bloody, non-
Characteristics bilious vomiting; frequent loose, watery
stools
Aggravating Eating solid foods; drinking large amounts
Factors of fluid quickly
Relieving Small sips of oral electrolyte solution
Factors tolerated better than large volumes