Growth Charts Flashcards
Out of 100 people, how many people are within 1 standard deviation of the 50th centile?
68
Out of 100 people, how many people are within 2 standard deviations of the 50th centile?
95
Centile lines are placed how many standard deviations apart?
0.67
Children under two should be weighed without any clothes/nappy. True/false?
True
Head circumference should be measured at the narrowest point. True/false?
False - widest point
Up to what age is the length of a child measured?
2 years
A point is described as being ‘on the centile’ if it is on the centile or within how much of a space?
0.25
Describe the onset of puberty in terms of the endocrinology
GnRH secretion increases LH secretion to result in sufficient sex steroid production
When does puberty occur on average in girls and boys?
Girls - 11
Boys - 11.5
When does true central precocious puberty occur in girls and boys?
Girls - before 8
Boys - before 9
At what age are children in pubertal delay?
Girls - 13 and older
Boys - 14 and older
What can be used to stage puberty?
Thelarche
Menarche
Adrenarche
Male genital size
Menarche occurs approximately how long after thelarche?
2 years