Neonatal hypothermia

🔹 INTRODUCTION

• Neonatal hypothermia is a common and serious condition where a newborn is unable to maintain normal body temperature.

• Newborns lose heat rapidly due to large surface area & thin skin

• Poor temperature regulation → especially in preterm babies

• Can lead to metabolic complications & death if untreated

  
  

🔹 DEFINITION

• According to World Health Organization (WHO):

Normal temperature: 36.5°C – 37.5°C

Hypothermia: < 36.5°C

CLASSIFICATION:

• Mild: 36.0 – 36.4°C (Cold stress)

• Moderate: 32.0 – 35.9°C

• Severe: < 32°C

  
  

🔹 CAUSES

1. Environmental Causes

• Cold delivery room

• Exposure after birth

• Inadequate clothing

• Delayed drying

2. Physiological Causes

• Prematurity

• Low birth weight

• Poor brown fat stores

3. Heat Loss Mechanisms

• Evaporation (wet skin)

• Conduction (cold surface)

• Convection (cold air)

• Radiation (cold surroundings)

🔹 RISK FACTORS

Maternal Factors

• Prolonged labor

• Maternal illness

• Cold environment at delivery

Neonatal Factors

• Preterm baby

• Low birth weight (LBW)

• Birth asphyxia

• Sepsis

• Hypoglycemia

• Poor feeding

  
  

🔹 CLINICAL MANIFESTATIONS

Early Signs

• Cool skin

• Peripheral cyanosis

• Poor feeding

• Lethargy

Moderate Signs

• Hypotonia

• Weak cry

• Slow heart rate

• Respiratory distress

Severe Signs

• Apnea

• Bradycardia

• Metabolic acidosis

• Coma

🔹 DIAGNOSIS

• Axillary temperature measurement

• Continuous temperature monitoring

• Assess associated conditions (hypoglycemia, sepsis)

  
  

🔹 TREATMENT

1. Immediate Management

• Dry the baby immediately

• Remove wet clothes

• Wrap in warm blanket

2. Rewarming Methods

🔸 Mild Hypothermia

• Skin-to-skin contact (Kangaroo Mother Care)

• Cover head & body

• Warm room

🔸 Moderate Hypothermia

• Radiant warmer

• Warm clothing & blankets

🔸 Severe Hypothermia

• Incubator care

• Gradual rewarming (avoid rapid warming)

3. Supportive Care

• Monitor temperature regularly

• Check blood glucose

• Provide oxygen if needed

• Treat underlying cause (sepsis, hypoglycemia)

🔹 PREVENTION

• Warm delivery room (≥ 25°C)

• Immediate drying after birth

• Early breastfeeding

• Skin-to-skin contact

• Delay first bath

• Proper clothing (cap, socks)

• Warm transport

  
  

🔹 COMPLICATIONS

• Hypoglycemia

• Metabolic acidosis

• Respiratory distress

• Sepsis

• Death

  
  

🔹 NURSING MANAGEMENT

• Monitor temperature frequently

• Maintain neutral thermal environment

• Promote breastfeeding

• Educate mother on warmth care

• Observe for complications

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🚀Here’s a short “exam trick” version for Neonatal Hypothermia — super quick points you can remember :

🔹 Introduction

• Inability of newborn to maintain normal body temperature.

🔹 Definition

• Body temperature < 36.5°C is hypothermia.

🔹 Causes

• Cold environment causes heat loss.

• Prematurity reduces heat production.

• Low birth weight decreases insulation.

• Wet skin increases evaporation heat loss.

• Poor clothing leads to heat loss.

🔹 Risk Factors

• Preterm babies have poor temperature control.

• LBW babies lose heat quickly.

• Birth asphyxia reduces metabolism.

• Sepsis increases heat loss.

Delayed feeding reduces energy.

🔹 Clinical Manifestations

• Cold skin indicates heat loss.

• Poor feeding shows low energy.

• Lethargy indicates reduced activity.

• Hypotonia shows muscle weakness.

• Slow heart rate indicates severity.

• Apnea occurs in severe cases.

• Coma occurs in extreme hypothermia.

🔹 Diagnosis

• Axillary temperature measurement confirms hypothermia.

• Continuous monitoring detects severity early.

🔹 Treatment

• Drying prevents heat loss.

• Warm clothing maintains temperature.

• Skin-to-skin contact provides warmth.

• Radiant warmer increases body temperature.

• Incubator used in severe cases.

• Treat underlying causes.

🔹 Prevention

• Warm room prevents heat loss.

• Immediate drying reduces evaporation.

• Early breastfeeding provides energy.

• Skin-to-skin contact maintains warmth.

• Delayed bathing prevents cooling.

• Proper clothing conserves heat.

🔹 Complications

• Hypoglycemia due to increased energy use.

• Acidosis due to poor metabolism.

• Respiratory distress due to cold stress.

• Death in severe untreated cases.

🔹 Nursing Management

• Monitor temperature regularly.

• Maintain warm environment.

• Encourage breastfeeding.

• Educate mother on newborn warmth care.

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🚀Here’s a set of 07 MCQs on Neonatal Hypothermia for practice :

1. Neonatal hypothermia is defined as temperature:

A. >37.5°C

B. <36.5°C ✅

C. >36°C

D. <38°C

2. Normal body temperature in newborn is:

A. 35–36°C

B. 36.5–37.5°C ✅

C. 37–38°C

D. 34–35°C

3. Most common cause of hypothermia:

A. Infection

B. Cold environment exposure ✅

C. Drug reaction

D. Dehydration

4. Which baby is at highest risk?

A. Term baby

B. Preterm baby ✅

C. Healthy newborn

D. Post-term baby

5. Early sign of hypothermia:

A. Seizure

B. Coma

C. Cold skin ✅

D. Bleeding

6. Best initial management:

A. Antibiotics

B. Oxygen

C. Dry and wrap baby ✅

D. Surgery

7. Best prevention method:

A. Early bathing

B. Cold room

C. Skin-to-skin contact (KMC) ✅

D. Delayed feeding