Growth & Development Flashcards
What is the main factor influencing factor in the infantile phase of growth?
Nutrition
A weight plotted on what centile corresponds to a child being obese?
98th
What are the main factors influencing the size of a baby at birth, and growth in the first month thereafter?
Maternal nutrition and intra-uterine environment
An infant usually doubles its birthweight by when?
5-6 months
What happens to a baby’s weight in the first week of life?
Loss of 5-10% of birthweight
What is the definition of growth faltering (failure to thrive)?
A sustained drop down two centiles on a growth chart
What is the first sign of puberty to occur in boys?
Testicular volume > 4mls (G2 Tanner stage)
A weight plotted on what centile corresponds to a child being overweight?
91st
Persistence of the tonic neck reflex is a frequent finding in infants with what condition?
Cerebral palsy
What pattern on a growth chart is suggestive of normal growth?
Approximately following a centile line
What hormone also plays a role in the infantile phase of growth?
Thyroid hormones
Short stature is defined as a height value below what centile?
2.5th
At what age range is the pubertal growth spurt most likely to occur in boys?
13-15 years
Between the ages of 1 and 5 years, how much weight does a child gain in a year?
2kg
What are the main influencing factors in the pubertal phase of growth?
Sex hormones and growth hormone