,
,Patient Information
Name: Mia Johnson (per iHuman case documentation)
Age: 18 months
Gender: Female
Weight: 24 lb (10.9 kg, ~50th percentile for age)
Height: 31 inches (78.7 cm, ~50th percentile for age)
Reason for Encounter: Vomiting and diarrhea for 2 days,
presenting to a pediatric outpatient clinic with laboratory and
imaging capabilities in 2024 for evaluation.
History of Present Illness
Mia Johnson, an 18-month-old female, is brought to the pediatric
outpatient clinic by her mother, who reports a 2-day history of frequent
vomiting and diarrhea. The mother describes 5–6 episodes of vomiting
per day, characterized as non-bloody, non-bilious, and containing
partially digested formula or food. The diarrhea consists of 6–8 watery,
yellowish, foul-smelling stools daily, without blood or mucus. The
mother notes a significant decrease in urine output, with only 2–3 wet
diapers per day compared to Mia’s usual 6–8, raising concern for
dehydration. Mia has been increasingly irritable, less playful, and
lethargic, with a marked reduction in appetite, refusing solid foods but
, accepting small amounts of formula (4–6 oz every 4–6 hours, down
from 8 oz). The mother reports no fever, chills, cough, nasal congestion,
rash, or recent trauma. She also notes that Mia cries without tears,
further suggesting dehydration. The symptoms began abruptly 2 days
ago, with no identifiable trigger such as new foods, medications, or
environmental changes. Mia attends daycare 5 days a week, where
several other children have recently had similar symptoms, strongly
suggesting a contagious infectious etiology, likely viral. The mother
denies recent travel, exposure to contaminated food or water, or
access to toxins (e.g., cleaning products, medications). No over-the-
counter remedies (e.g., antiemetics, antidiarrheals) have been
administered. The mother is particularly worried about Mia’s lethargy
and reduced urine output, noting that her clothes appear looser,
though no recent weight measurement is available. Mia’s last well-child
visit at 15 months was unremarkable, with no prior episodes of
significant vomiting or diarrhea. Medical History
Past Medical History:
Born at 39 weeks via spontaneous vaginal delivery,
uncomplicated, with a birth weight of 7 lb 2 oz (3.2 kg). No
neonatal intensive care unit (NICU) stay.
,Patient Information
Name: Mia Johnson (per iHuman case documentation)
Age: 18 months
Gender: Female
Weight: 24 lb (10.9 kg, ~50th percentile for age)
Height: 31 inches (78.7 cm, ~50th percentile for age)
Reason for Encounter: Vomiting and diarrhea for 2 days,
presenting to a pediatric outpatient clinic with laboratory and
imaging capabilities in 2024 for evaluation.
History of Present Illness
Mia Johnson, an 18-month-old female, is brought to the pediatric
outpatient clinic by her mother, who reports a 2-day history of frequent
vomiting and diarrhea. The mother describes 5–6 episodes of vomiting
per day, characterized as non-bloody, non-bilious, and containing
partially digested formula or food. The diarrhea consists of 6–8 watery,
yellowish, foul-smelling stools daily, without blood or mucus. The
mother notes a significant decrease in urine output, with only 2–3 wet
diapers per day compared to Mia’s usual 6–8, raising concern for
dehydration. Mia has been increasingly irritable, less playful, and
lethargic, with a marked reduction in appetite, refusing solid foods but
, accepting small amounts of formula (4–6 oz every 4–6 hours, down
from 8 oz). The mother reports no fever, chills, cough, nasal congestion,
rash, or recent trauma. She also notes that Mia cries without tears,
further suggesting dehydration. The symptoms began abruptly 2 days
ago, with no identifiable trigger such as new foods, medications, or
environmental changes. Mia attends daycare 5 days a week, where
several other children have recently had similar symptoms, strongly
suggesting a contagious infectious etiology, likely viral. The mother
denies recent travel, exposure to contaminated food or water, or
access to toxins (e.g., cleaning products, medications). No over-the-
counter remedies (e.g., antiemetics, antidiarrheals) have been
administered. The mother is particularly worried about Mia’s lethargy
and reduced urine output, noting that her clothes appear looser,
though no recent weight measurement is available. Mia’s last well-child
visit at 15 months was unremarkable, with no prior episodes of
significant vomiting or diarrhea. Medical History
Past Medical History:
Born at 39 weeks via spontaneous vaginal delivery,
uncomplicated, with a birth weight of 7 lb 2 oz (3.2 kg). No
neonatal intensive care unit (NICU) stay.
