Paeds Flashcards
How can Hb on capillary blood gas look in neonate ?
Hb is high in neonate and then becomes lower over time when their own bone marrow starts to kick in - physiological anaemia of newborn
What’s a newborn sepsis screen ?
Urine culture, blood culture, LP
First line sepsis Abx
Neonatal: Gentamicin and Benzyl Pen
Paeds: Cefotaxime and amoxicillin
What gives Listeria coverage?
Amoxicillin
Why would you give aciclovir in neonatal sepsis?
Herpes simplex virus -HSV1/2
Why give Vit K in neonatal sepsis ?
Baby may be bleeding somewhere
Do you treat (amount of abx) on working weight or current weight?
Working weight
(It is the birth weight until the current weight exceeds it.)
When is LP not done?
Increased or suspected increased ICP
- haemodynamically unstable
- seizures
- non- blanching rash (meningococcal sepsis)
Why is hypokalemic hypochloraemic metabolic alkalosis due to pyloric stenosis a medical emergency
Hypokalaemia- risk of arrhythmia !! Add potassium to IV fluids
How to treat pyloric stenosis ?
Pyloromyotomy
What is a low, very low, extremely low birthweight?
Low- <2.5kg
Very low-<1.5kg
Extremely-<1kg
What is a term baby ?
37-42 weeks
Post date/post term baby?
Post term- >42 weeks
Why do preterm babies get hypothermia?
High SA to volume ratio- lots of heat loss
What is surfactant made by?
Type 2 pneumocytes
What is surfactant? How does it work.
It’s a mixture of phospholipids and proteins that reduces surface tension between the gas- liquid interface
What vascular damage causes IVH?
Venous damage
What causes retinopathy of prematurity?
Abnormal blood vessel growth in the retina
How to diagnose Bronchopulmonary dysplasia ? Criteria?
Is caused by mechanical ventilation and oxygen
- required oxygen for 28 days
- if still require oxygen at 36 weeks corrected
When is magnesium sulphate given and why?
Preterm Labour <32 weeks for Neuroprotection - 30% decrease in cerebral palsy ( has to be given 24 hours before giving birth)
What can cause IVH?
- respiratory distress syndrome
- changes in blood pressure
What is a macule, papule, vesicle, petechiae, purpura, ecchymoses? What causes them?
What bacterial, viruses can cause macular rashes?
What bacterial, viruses can cause vesicular, bullous, pustular rashes?
What bacterial, viruses can cause petechiae
rashes?
Is scarlet fever a notifiable illness ?
Yes
What symptoms and signs may there be in scarlet fever?
- pharyngitis first
Fever lasts 24-48 hours - Sandpaper like, maculopapular confluent rash which starts on torso
- strawberry tongue
- pastia’s lines
- desquamination of fingers and toes
What can cause hydrops fetalis?
Immune
- haemolytic disease of newborn- ABO/rhesus D incompatibility
Non immune
- hereditary spherocytosis
- thallasaemia
Infective
- parvovirus B19
Parvovirus B19 complications
Aplastic anaemia
Encephalitis or meningitis
Pregnancy complications including fetal death
Rarely hepatitis, myocarditis or nephritis
Treatment of transient aplastic crisis in Slapped cheek
Supportive mostly
What is Kawasaki disease ?
Systemic medium sized vessel vasculitis
What is the criteria for Kawasaki?
- Unexplained fever for >5 days
- 4/5 of the following for classical Kawasaki
‘crash burn’ mneumonic
Features of Kawasaki
widespread erythematous maculopapular rash
desquamation (skin peeling) on the palms and soles
Strawberry tongue (red tongue with large papillae)
Cracked lips
Cervical lymphadenopathy
Bilateral conjunctivitis
Why is Kawasaki so bad? What’s the main complication
It is a vasculitis! Can cause thrombosis and aneurysms
Main comp: coronary artery aneurysm