Four-Month Well Baby Check: Essential Components
The 4-month well baby check should include a comprehensive assessment of growth, development, feeding patterns, elimination, physical examination, and anticipatory guidance to ensure optimal health outcomes and early detection of potential issues.
History Components
Growth and Development
- Verify weight, length, and head circumference measurements and plot on growth chart
- Assess developmental milestones appropriate for 4 months:
- Gross motor: rolls from front to back, supports weight on forearms
- Fine motor: reaches for and grasps objects, brings objects to mouth
- Language: coos, babbles, laughs
- Social: smiles spontaneously, enjoys social play
Feeding Assessment
- Breastfeeding pattern: frequency (8-12 times/day), duration, latch issues
- Formula feeding: type, amount, frequency, preparation technique
- Introduction of solid foods: assess if parents are planning early introduction (recommend waiting until 6 months) 1
- Elimination patterns: number of wet diapers (at least 6/day) and bowel movements 2
Medical History
- Review birth history if not previously documented
- Update on any acute illnesses since last visit
- Review results of newborn screening tests
- Document any medications or supplements
- Review any specialist visits or emergency department visits
Social History
- Identify individuals living in the home
- Screen for housing conditions (water damage, mold, unsafe conditions)
- Document exposures to tobacco, toxic substances, or drugs
- Assess maternal mental health (screen for postpartum depression) 2, 1
- Assess for domestic violence risk factors
- Evaluate childcare arrangements
Physical Examination
General Assessment
- Vital signs: temperature, heart rate, respiratory rate
- General appearance and interaction with examiner and caregiver
Systems Examination
- Head: fontanelles, shape, size
- Eyes: red reflex, tracking, alignment
- Ears: position, external canal patency
- Mouth: palate integrity, presence of teeth
- Cardiovascular: heart sounds, murmurs, femoral pulses
- Respiratory: breath sounds, respiratory effort
- Abdomen: organomegaly, masses, umbilical hernia
- Genitourinary: normal anatomy, testes descended in males
- Musculoskeletal: hip examination for developmental dysplasia, spine, extremities
- Neurological: tone, strength, symmetry of movement
- Skin: color, rashes, birthmarks
Anticipatory Guidance
Safety
- Car seat use (rear-facing until at least 2 years) 1
- Safe sleep practices (back to sleep, firm mattress, no soft bedding)
- Fall prevention
- Choking hazards and prevention
- Water safety
Nutrition
- Exclusive breastfeeding or formula feeding until 6 months
- Avoid juice and sugar-sweetened beverages before 1 year 1
- Discuss plans for introduction of solid foods at 6 months
Development
- Promote language development through reading and talking
- Encourage tummy time when awake
- Discuss appropriate toys for developmental stimulation
- Screen time limitations (avoid screen time under 18 months) 1
Dental Health
- Discuss oral hygiene practices
- Fluoride supplementation if needed based on water supply 1
Screening and Immunizations
Screenings
- Developmental surveillance using standardized tool
- Maternal depression screening 1
- Vision and hearing screening as appropriate
Immunizations
- Review and update immunization status per current schedule
- Document any adverse reactions to previous immunizations
- Provide anticipatory guidance about potential side effects
Documentation Template for Copy/Paste
4-MONTH WELL CHILD CHECK
HISTORY:
Growth/Development: [Document milestones achieved]
Feeding: [BF/FF, frequency, amount, any issues]
Elimination: [# wet diapers/day, stool pattern]
Sleep: [Hours/night, naps, sleep position]
Illness/Medications: [Any since last visit]
Social: [Home environment, childcare, maternal mental health]
PHYSICAL EXAM:
Weight: ___ kg (___ percentile)
Length: ___ cm (___ percentile)
HC: ___ cm (___ percentile)
Vital signs: T ___ HR ___ RR ___
General: [Alert, interactive, etc.]
HEENT: [Fontanelles, red reflex, etc.]
Chest/Lungs: [Clear, symmetric]
CV: [RRR, no murmurs, femoral pulses]
Abdomen: [Soft, non-tender, no masses]
GU: [Normal external genitalia]
Musculoskeletal: [No hip clicks, full ROM]
Skin: [No rashes, lesions]
Neuro: [Normal tone, symmetric movements]
ASSESSMENT:
1. Healthy 4-month-old [male/female]
2. Growth: [appropriate/concerns]
3. Development: [appropriate/concerns]
PLAN:
1. Continue [breastfeeding/formula] until 6 months
2. Maintain safe sleep practices
3. Reviewed safety measures and developmental activities
4. Immunizations given: [list]
5. Return at 6 months for next well visitCommon Pitfalls to Avoid
- Failing to screen for maternal postpartum depression, which can impact infant development
- Missing developmental red flags that require early intervention
- Inadequate assessment of feeding patterns that could affect growth
- Overlooking social risk factors that may impact the child's well-being
- Incomplete documentation of physical examination findings
By following this comprehensive approach to the 4-month well baby check, clinicians can ensure optimal health outcomes through early detection of potential issues and appropriate anticipatory guidance.