Give me a clerking sheet that helps me present on neonatal jaundice case as a 3rd year medical student to a paediatrician
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Here is a structured clerking sheet designed specifically for presenting a neonatal jaundice case as a 3rd year medical student to a paediatrician:
Neonatal Jaundice - Clerking Sheet for Medical Student Presentation
PRESENTING COMPLAINT
"[Baby name], a [X]-day-old [male/female] neonate, born at [X] weeks gestation, presenting with yellowing of the skin/sclera noticed at [X] hours/days of life."
HISTORY OF PRESENTING COMPLAINT
Onset and timing (this is critical - determines physiologic vs pathologic)
- When was jaundice first noticed? (Appearance within 24 hours = always pathologic)
- By whom was it noticed - parents, midwife, ward staff?
- Cephalocaudal progression - face only? Face + chest? Below umbilicus? Palms/soles? (More caudal = more severe)
Associated symptoms to ask about:
- Feeding: breast or formula? Volume/frequency? Latching well?
- Urine: how many wet nappies/day? Colour? (Pale = cholestasis if conjugated)
- Stool: colour and consistency? (Pale/acholic stools = biliary obstruction)
- Activity: alert and active, or lethargic/floppy?
- Cry: normal or high-pitched?
- Fever or temperature instability?
BIRTH HISTORY
- Gestational age at delivery (term vs preterm - preterm neonates have more immature glucuronyl transferase)
- Mode of delivery: SVD / instrumental / caesarean section
- Birth weight and current weight (calculate % weight loss)
- APGAR scores at 1 and 5 minutes
- Any birth trauma? Cephalhaematoma? Bruising? (Breakdown of haematoma = increased bilirubin load)
- Delayed cord clamping? (Increases polycythaemia risk)
ANTENATAL HISTORY
- Blood group of mother: ABO and Rhesus status
- Any antenatal antibody screen results (e.g. anti-D, anti-c, anti-Kell)?
- TORCH infections screen during pregnancy?
- Maternal illness during pregnancy (e.g. diabetes, pre-eclampsia)?
- Any medications during pregnancy?
FEEDING HISTORY (particularly important)
- Breast or formula fed?
- If breastfeeding: frequency, duration, skin-to-skin? Evidence of adequate milk transfer?
- Weight trend: has baby regained birth weight? (Dehydration concentrates bilirubin)
- Note: Breast milk jaundice peaks 10-21 days, may persist 3-10 weeks; breastfeeding jaundice is due to poor intake/dehydration in first few days
FAMILY AND SOCIAL HISTORY
- Siblings with neonatal jaundice or blood transfusions?
- Family history of haemolytic anaemia, spherocytosis, G6PD deficiency, or sickle cell disease?
- Ethnicity (G6PD deficiency more common in Mediterranean, African, South-East Asian backgrounds)
- Any sibling requiring phototherapy or exchange transfusion?
SYSTEMS REVIEW (QUICK)
- Any fever, rash, petechiae? (Suggests sepsis or TORCH)
- Hepatosplenomegaly symptoms? (Suggests haemolysis or congenital infection)
- Any dysmorphic features noted at birth?
EXAMINATION FINDINGS TO REPORT
General:
- Alert vs lethargic; tone (normal/hypotonic/hypertonic)
- Cry: normal vs high-pitched
Vital signs:
- Temperature, HR, RR, SpO2, capillary refill time
Jaundice assessment:
- Kramer's zones (Zone 1: face; Zone 2: chest to umbilicus; Zone 3: umbilicus to knees; Zone 4: below knees; Zone 5: palms/soles)
- Scleral icterus
Head: Cephalhaematoma? Caput succedaneum?
Abdomen: Liver size (hepatomegaly?), spleen size (splenomegaly?)
Skin: Bruising, petechiae, rash, plethora (polycythaemia)
Neuro: Tone, Moro reflex, suck reflex - any signs of BIND (bilirubin-induced neurologic dysfunction)?
Red flags on exam: opisthotonus, retrocollis, seizures, extreme lethargy - these suggest acute bilirubin encephalopathy (ABE)
INVESTIGATIONS TO PRESENT
| Investigation | What you're looking for |
|---|---|
| Total serum bilirubin (TSB) | Fractionated - direct (conjugated) vs indirect (unconjugated) |
| Transcutaneous bilirubin (TcB) | Screening; confirm with TSB if elevated |
| Blood group (baby) | Compare with maternal group for ABO/Rh incompatibility |
| DAT (Direct Antiglobulin Test / Coombs) | Positive = isoimmune haemolysis |
| FBC / blood film | Haemoglobin, haematocrit (polycythaemia?), reticulocyte count, red cell morphology (spherocytes?) |
| Blood glucose | Rule out hypoglycaemia in unwell neonate |
| LFTs / split bilirubin | Direct bili >20% of total = conjugated jaundice = pathologic |
| TFTs | Hypothyroidism can cause prolonged jaundice |
| U&E | Hydration status |
| Septic screen | If any features of infection (FBC, CRP, blood culture, urine culture) |
| G6PD screen | If relevant ethnicity or family history |
Key rule: Conjugated (direct) hyperbilirubinaemia in a neonate is ALWAYS pathologic - must investigate for biliary atresia, sepsis, metabolic disease, TORCH infections.
IMPRESSION / DIAGNOSIS FRAMING
Structure your presentation like this:
"This is [Baby X], a [gestational age], [postnatal age]-day-old, who presents with unconjugated hyperbilirubinaemia. The jaundice appeared on day [X], which is [consistent with / not consistent with] physiologic timing. The TSB is [X] mg/dL, which on the Bhutani nomogram for age in hours places this baby in the [low/intermediate/high] risk zone. The most likely diagnosis is [physiologic jaundice / breast milk jaundice / ABO incompatibility / haemolytic disease of the newborn / sepsis], because..."
DIFFERENTIALS TO DISCUSS
Unconjugated (indirect) - most common
| Cause | Key clues |
|---|---|
| Physiologic jaundice | Day 2-3 onset, peaks day 4-5, bilirubin rarely >20 mg/dL |
| Breast milk jaundice | Peaks day 10-21, otherwise well, persists 3-10 weeks |
| Breastfeeding jaundice | First week, poor intake, weight loss, infrequent stools |
| ABO incompatibility | Mother O, baby A or B; positive DAT |
| Rh incompatibility | Rh-negative mother, Rh-positive baby; often severe |
| G6PD deficiency | Relevant ethnicity, haemolysis, responds poorly to phototherapy |
| Cephalhaematoma | Birth trauma, palpable scalp swelling |
| Sepsis | Unwell, temperature instability, raised CRP |
| Polycythaemia | Plethora, high haematocrit |
| Hypothyroidism | Prolonged jaundice, other features of hypothyroidism |
Conjugated (direct) - less common, always pathologic
| Cause | Key clues |
|---|---|
| Biliary atresia | Acholic stools, dark urine, hepatomegaly - urgent referral |
| Neonatal hepatitis | TORCH infections, sepsis |
| Metabolic (galactosaemia) | Vomiting, cataracts, E. coli sepsis |
| Alpha-1-antitrypsin deficiency | Family history, liver disease |
| TPN-associated cholestasis | Premature/sick neonate on parenteral nutrition |
MANAGEMENT TO PRESENT
1. Supportive - all babies:
- Ensure adequate feeding (breast or formula top-up if needed)
- Monitor hydration and weight
- Repeat TSB as clinically indicated
2. Phototherapy:
- Indicated when TSB crosses age-specific threshold on the Bhutani hour-specific nomogram
- Blue light (wavelength 430-490 nm) converts bilirubin to water-soluble photoisomers that can be excreted without hepatic conjugation
- Cover eyes; maximise skin exposure; continue feeding
- Monitor TSB 4-6 hourly while on phototherapy
3. Exchange transfusion:
- Reserved for TSB approaching toxic levels (generally >20-25 mg/dL depending on gestation and age) or failure of phototherapy
- Removes sensitised red cells and bilirubin
- Double-volume exchange transfusion (DVEX)
4. Treat the underlying cause:
- Sepsis: IV antibiotics
- Haemolytic disease: IVIG ± phototherapy
- Biliary atresia: Kasai portoenterostomy (urgent - best outcomes if < 60 days of age)
- Metabolic disease: dietary modification (e.g. lactose-free formula for galactosaemia)
COMPLICATIONS TO MENTION
| Complication | Detail |
|---|---|
| BIND (Bilirubin-Induced Neurologic Dysfunction) | Spectrum from subtle neurodevelopmental issues to kernicterus |
| Kernicterus | Permanent brain damage - athetoid cerebral palsy, sensorineural hearing loss, gaze palsy, intellectual disability |
| Acute bilirubin encephalopathy (ABE) | Early/reversible: lethargy, poor feeding, high-pitched cry, hypertonia → progresses to seizures, death |
Threshold for neurotoxicity is generally >20 mg/dL, but lower in preterm infants or those with haemolysis/acidosis/sepsis
FOLLOW-UP PLAN TO MENTION
- Recheck TSB at 6-24 hours after discharge or phototherapy
- Audiology follow-up if significant hyperbilirubinemia
- Developmental follow-up
- Parent education: what to watch for at home (excessive sleepiness, poor feeding, deepening jaundice)
QUICK PRESENTATION STRUCTURE (1-MINUTE SUMMARY)
"I'd like to present Baby [X], a [X]-day-old term/preterm neonate born by [delivery mode] at [gestation]. He/She presented with jaundice first noted at [X] hours of life. Key positives are [feeding issues / birth trauma / maternal blood group O / etc.]. On examination, Kramer zone [X], baby is [alert/lethargic], tone [normal/abnormal], [hepatosplenomegaly/no organomegaly]. TSB is [X] mg/dL, which is [above/below] the phototherapy threshold for age. The conjugated fraction is [normal/elevated]. My working diagnosis is [X], and I would like to [start phototherapy / investigate for haemolysis / refer for further workup]."
Key sources: Rosen's Emergency Medicine (Clinical Practice); Quick Compendium of Clinical Pathology, 5th ed.; Robbins & Kumar Basic Pathology
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