Turn Down the Heat: Consequences of Hyperthermia
Baby Heat Science: Physiology of Thermoregulation
Feeling Frosty:
Cold Stress Consequences
No Sweat, No Freeze: Prevention Strategies
Goldilocks Zone:
Neutral Thermal Environment
100

Elevated body temperature increases this metabolic demand in newborns.

What is increased oxygen consumption?

100

Cold stress increases oxygen consumption leading to this respiratory complication.

What is respiratory distress?

100

Drying the newborn immediately after delivery helps prevent this type of heat loss.

What is evaporation?

100

Definition: environmental temperature where oxygen consumption and metabolic rate are minimized.

What is neutral thermal environment (NTE)?

200

Hyperthermia can lead to this fluid imbalance due to increased insensible water loss.

What is dehydration?

200

This early clinical sign may indicate a newborn is becoming cold stressed.

What is tachypnea?

200

Which metabolic complication can result from increased glucose utilization during cold stress?

What is hypoglycemia?

200

These are recommended for preterm infants less than 32 weeks' gestation or 2,000 grams upon delivery to reduce heat loss.

What are polyethylene wraps or a raincoat?

200

The two main factors that determine an infant’s neutral thermal environment.

What are gestational age and weight?

300

This cardiovascular sign may appear as the body attempts to compensate for increased metabolic demand during hyperthermia.

What is tachycardia?

300

Premature infants lose heat rapidly because of a large ratio of this to body mass.

What is body surface area?

300

Peripheral vasoconstriction during cold stress can worsen this acid-base condition.

What is metabolic acidosis?

300

Recommended delivery room temperature for very preterm infants.

What is 23.8°C-26.1°C (75°F-79°F)?

300

Premature infants have increased heat loss partly due to this skin characteristic.

What is thin, immature skin with increased transepidermal water loss?

400

This respiratory change may occur as the infant attempts to dissipate heat and meet metabolic needs.

What is tachypnea?

400

This physiologic response occurs when infants attempt to conserve heat by reducing blood flow to the skin.

What is peripheral vasoconstriction?

400

Cold stress increases oxygen demand and may worsen this pulmonary condition in preterm infants.

What is respiratory distress syndrome (RDS)?

400

Skin temperature goal used in servo-controlled incubators for most preterm infants.

What is 36.5–37.0°C?

400

On an incubator or radiant warmer what control setting (mode) automatically adjusts heat based on the infant’s skin probe temperature.

What is a servo-controlled (mode) incubator?

500

Excessive heat can increase metabolic rate leading to increased glucose utilization and this metabolic problem.

What is hypoglycemia?

500

This metabolic process occurs when oxygen levels fall during cold stress and leads to acidosis. 

What is anaerobic metabolism?

500

FIND SOMETHING NEW This dangerous cascade is often referred to as the cold stress cycle.

What is cold stress → hypoxia → anaerobic metabolism → metabolic acidosis?

500

This practice improves thermoregulation, glucose stability, and bonding.

What is skin-to-skin (kangaroo care)?

500

The normal Neonatal Temperature range.

 36.5°C-37.5°C

M
e
n
u