Neonatology Flashcards
All preterm babies should be heated while being stabilised before transfer to the NICU. How should a baby aged > 28 weeks be heated?
Dried and wrapped in a warm towel
All preterm babies should be heated while being stabilised before transfer to the NICU. How should a baby aged < 28 weeks be heated?
Don’t dry, and place trunk and limbs in a plastic bag loosely tied around the neck
What respiratory support is required for a preterm baby with a good heart rate and respiratory effort before being transferred to the NICU?
Facial O2 or CPAP
What respiratory support is required for a preterm baby with poor respiratory effort or signs of respiratory distress before being transferred to the NICU? What medication should also be administered to these babies?
Intubation for mechanical ventilation, also give surfactant
Describe what is meant by a low, very low and extremely low birthweight baby?
Low = < 2500g, very low = < 1500g, extremely low = < 1000g
What gestational age would be classified as a late preterm baby?
34-37 weeks
What gestational age would be classified as a moderately preterm baby?
32-34 weeks
What gestational age would be classified as a very preterm baby?
28-32 weeks
What gestational age would be classified as an extremely preterm baby?
< 28 weeks
Name 3 reasons why premature babies are at increased risk of hypothermia?
Thin skin, large surface area, low subcutaneous fat stores
How can hypothermia be prevented in a preterm neonate?
Use of an incubator and a hat to prevent heat loss
Preterm babies have a very fragile gut, which makes them more susceptible to which serious condition affecting the bowel?
Necrotising enterocolitis
At what age (in weeks) does the suck and swallow reflex develop?
34 weeks
How are preterm babies aged < 34 weeks usually fed?
IV nutrition while gradually introducing milk via an NG tube
Many preterm neonates require multiple courses of antibiotics. This can therefore increase the risk of which other type of infection?
Fungal
Babies who were born preterm receive follow-up for how long to monitor their growth and development?
For the first year of life
What is the cause of neonatal respiratory distress syndrome?
Lack of surfactant
What happens to lung compliance in neonatal respiratory distress syndrome?
Decreased
If a preterm neonate presents with respiratory distress at delivery or within 4 hours of birth, what diagnosis should you suspect?
Respiratory distress syndrome
What are the 4 main signs of respiratory distress that may be seen in a neonate?
Tachypnoea, grunting, cyanosis and recession
Neonatal respiratory distress syndrome is mainly a clinical diagnosis which can be confirmed with which investigation? What will this show?
CXR - will show a ‘ground-glass appearance’
How can neonatal respiratory distress syndrome be prevented pre-delivery?
By giving maternal steroids when there is a risk of preterm delivery
What medication is used to manage neonatal respiratory distress syndrome?
Surfactant
What ventilatory management is required for neonates with severe symptoms of respiratory distress syndrome?
Oxygen via mechanical ventilation
What ventilatory management is required for neonates with mild symptoms of respiratory distress syndrome?
Oxygen via nasal cannula or CPAP
What are the three main complications of mechanical ventilation in a neonate?
Pneumothorax, pulmonary haemorrhage and chronic lung disease
Chronic lung disease (bronchopulmonary dysplasia) is caused by lung tissue inflammation secondary to what things?
RDS, mechanical ventilation and oxygen toxicity
Chronic lung disease (bronchopulmonary dysplasia) can be diagnosed when there is a need for supplemental oxygen to maintain saturations > 95% after what gestational age?
36 weeks
If not prevented, how is chronic lung disease (bronchopulmonary dysplasia) managed?
Supplemental oxygen (usually via a nasal cannula)
Babies who develop chronic lung disease (bronchopulmonary dysplasia) are at increased risk of developing what other respiratory condition in the first year of life?
Bronchiolitis
All premature babies of what gestation will have apnoea?
< 28 weeks
What is the most common cause of apnoea of prematurity?
Immature respiratory drive
What management is required for preterm babies who have apnoeic episodes occurring frequently in succession?
Mechanical ventilation
What medication is given to all preterm babies daily in order to stimulate their respiratory centre to initiate breaths?
Caffeine
Periventricular leukomalacia is a complication of prematurity which follows what event?
Ischaemic brain injury
Preterm babies are at increased risk of developing intraventricular haemorrhage. This is a bleed into the ventricles which originates from where?
Germinal matrix
Both periventricular leukomalacia and intraventricular haemorrhage are usually asymptomatic. How would these usually be detected?
Cranial ultrasound
A sudden deterioration in the clinical state of a neonate with prolonged apnoea, bradycardia or a rapid drop in haemoglobin should make you consider what diagnosis?
Intraventricular haemorrhage
How should intraventricular haemorrhage in a neonate be managed?
Weekly cranial ultrasound scans throughout the hospital stay
What is the most significant complication of an intraventricular haemorrhage in a neonate?
Hydrocephalus