Pediatric Emergency Red Flags & Immediate Hospital Triage

1. Fever in Infants Under 3 Months (≥38.0°C / 100.4°F)

A rectal temperature of 38.0°C (100.4°F) or higher in an infant under 90 days of age is a medical emergency:

• Newborn immune systems are immature, and bacterial infections (meningitis, bacteremia, pyelonephritis) can progress rapidly with subtle early signs.
• All infants under 3 months with fever require urgent hospital blood, urine, and cerebrospinal fluid evaluation by a pediatrician.
• Do NOT give antipyretics before being evaluated by a doctor, as it masks vital clinical signs.

2. Respiratory Distress Signs

Infant breathing is naturally fast, but the following are signs that an infant is working dangerously hard to breathe:

• Subcostal & Intercostal Retractions: The skin between or below the ribs sucks inward deeply with every breath.
• Nasal Flaring: Nostrils widen noticeably with each inhalation.
• Grunting: A rhythmic grunting noise on exhalation (the body attempting to maintain end-expiratory pressure in collapsing alveoli).
• Cyanosis: Blue or gray discoloration around the lips, tongue, or central face. For choking events, see first aid for choking.

3. Projectile or Green Bile Vomiting

• Occasional gentle spit-ups are normal. However, dark green (spinach-green) bile vomiting indicates a surgical emergency (intestinal malrotation with volvulus).
• Forceful projectile vomiting of curdled milk across a room after every feed in a 3–6 week old infant suggests pyloric stenosis. If poisoning or swallowed objects are suspected, check button battery and toxicology prevention.

4. The "Tumbler Glass Test" for Meningococcal Rash