Clinical Flashcards
(114 cards)
How far apart are centile lines on a growth chart?
2/3 of a standard deviation
A child shows normal growth if what two conditions are met?
Measurements are in normal range for their age
Growth rate is in normal range
What has happened to growth charts over the last 30 years?
Right shift
Longer tail
Increase in severe obesity
Similar trend with height
How should babies be weighed?
Without clothes or nappy
How should children older than 2 be weighed?
In vest and pants But no: - Shoes - Socks - Dolls/Teddies
How and where do you measure head circumference?
With a narrow plastic/disposable paper tape
Measure at widest point
When would you measure a babies length before the age of 2?
If you were concerned
How do you measure a babies length before they are 2?
Length board/mat
Requires two measurements
What can affect the babies length?
Child’s mood
Style of measurer
How do you measure a child older than 2?
Rigid rule with T-piece
Ensure heels, bottom, back and head touch apparatus
Eyes and ears at 90 degrees
Measure on expiration
Where must a recording be on a growth chart for the child to be considered on the centile line?
Either on the line of within 1/4 of a space of it
What is a centile space?
Distance between two centile lines
What is the average age of puberty in girls and boys?
Girls - 11 years
Boys - 11.5 years
When does puberty start?
When GnRH is secreted by hypothalamus
What cells does LH binds to in boys and what does this cause?
Leydig cells -> Testosterone
What cells does FSH bind to in boys and what does this cause?
Sertoli cells -> Spermatogenesis
What is also produced by Sertoli cells and what does it do?
Inhibin B -> Reduces FSH secretion
What does LH do in girls?
Stimulates proliferation of follicular and theca cells
Triggers androgen release from theca cells
What does FSH do in girls?
Increases granulosa cell proliferation
Enhances aromatase activity:
- Prodcuing oestradiol
Increases progesterone production
What cells produce Inhibin B in girls?
Granulosa cells
What cells produce Inhibin A in girls?
Large antral follicles in corpus luteum
What do increased levels of sex steroids and insulin cause in both sexes?
GH and IGF-1 are enhanced
How is puberty staged and how many stages are there? Is this diagnostic of the patient’s actual age?
Tanner staging:
- 5 stages
No
What is thelarche?
Breast budding