Hypothyroidism Differential Diagnosis & Care Plan (2026 Edition)
,PATIENT BIODATA
Patient Name Avery Brook
Age 10 years old
Sex Female
Ethnicity Caucasian
Grade 4th-5th Grade
Height 54 inches (140 cm)
Weight 98 lbs (44.5 kg)
BMI ~85th percentile
Setting Outpatient Pediatric Clinic
Source of Information Patient and Mother
Chief Complaint (CC)
"My grades are slipping and I have trouble paying attention in school."
History of Present Illness (HPI) - OLD CARTS
Component Details
Onset Gradual onset beginning approximately 6-12 months ago; started in 3rd grade, worsening into 4th
grade
Location Cognitive/behavioral — manifests in structured academic settings and at home
Duration Persistent, daily throughout school week and weekends
Character Daytime fatigue, "brain fog," difficulty concentrating, inattention, forgetfulness,
disorganization
Aggravating Early morning wake times, long periods of sedentary classroom instruction, homework
requiring sustained mental effort
Relieving Breaks, physical activity, one-on-one attention, highly preferred activities
Timing Most severe mid-morning and early afternoon; worsened over past 6 months
, Severity Moderate — significantly impacting academic performance (A/B to C/D)
Pertinent Positives
Loud snoring (new development over past year)
Witnessed gasping episodes during sleep
Daytime somnolence and fatigue
Morning headaches upon awakening
Chronic mouth breathing
Recent weight gain (~6 pounds over few months)
Cold intolerance; often wears sweater when others comfortable
Reports general "heaviness" in limbs
Difficulty concentrating and "brain fog"
Pertinent Negatives
No hyperactivity or disruptive behavior
No history of seizure-like activity or staring spells