Neonatology Calculators

Standardised assessment of newborn condition at 1 and 5 minutes after birth. Five parameters scored 0–2. Score ≥7 = good condition; 4–6 = moderate concern; ≤3 = requires immediate resuscitation. Does NOT predict long-term neurological outcome.

Plots total serum bilirubin (TSB) against postnatal age in hours to categorise risk of severe neonatal hyperbilirubinaemia in infants ≥35 weeks. Based on Bhutani nomogram. Used to guide phototherapy and exchange transfusion decisions.

21-item scoring system assessing severity of neonatal abstinence syndrome (NAS) in neonates born to mothers using opioids or other substances. Scored every 3–4 hours. Total score guides pharmacological treatment initiation and weaning.

5-component bedside scoring system for assessing severity of respiratory distress in neonates. Each item scored 0–2. Total score 0 = no distress; 10 = severe distress. Used to guide oxygen supplementation and ventilatory support decisions.

Neuromuscular and physical maturity scoring system to estimate gestational age in neonates when dates are uncertain. Consists of 6 neuromuscular + 6 physical maturity criteria. Total score correlates to gestational age in weeks.

Predicts risk of significant rebound hyperbilirubinaemia after discontinuation of phototherapy in neonates ≥35 weeks. Low-risk infants may not need post-phototherapy bilirubin checks. Identifies infants safe for early discharge after phototherapy.

Calculates volume of blood to exchange with normal saline to reduce haematocrit in neonatal polycythaemia. Polycythaemia defined as venous Hct ≥65% (Hb ≥220 g/L). Treatment indicated if symptomatic or Hct ≥70%.

10-point intraoperative risk score predicting postoperative major complications and death. Based on estimated blood loss, lowest mean arterial pressure, and lowest heart rate during surgery. Score 0–10; lower score = higher risk. Applicable across surgical specialties.

Assesses risk zone of neonatal bilirubin level based on age in hours. Guides phototherapy and exchange transfusion decisions per NICE/AAP.

Identifies neonates requiring CPAP or respiratory support based on clinical and gestational criteria. Used in NICU and delivery suite.

Estimates risk of early-onset neonatal sepsis (EOS) using maternal and clinical factors. Based on Kaiser Permanente model.

Assesses respiratory distress severity in neonates using five clinical signs of chest retraction. Score 0 = no distress; 10 = maximal distress.

Identifies neonates with hypoxic ischaemic encephalopathy (HIE) eligible for therapeutic hypothermia (cooling therapy). TOBY/NICE criteria.

Standardised assessment of newborn condition at 1 and 5 minutes after birth. Guides immediate resuscitation decisions.

Identifies neonates at high risk for hypoglycaemia requiring glucose monitoring. Based on BAPM/NICE guidelines.

Modified Bell's classification (Walsh & Kliegman 1986) of necrotising enterocolitis severity in neonates. Stages IA/IB (suspected) → IIA/IIB (definite, mild/moderate) → IIIA/IIIB (advanced, ill/perforated).