Development Flashcards
In normal development, a baby born at term should be able to sit unassisted at:
6-7 months
A 5-year-old girl is brought to the office by her mother because she has started growing pubic hair. Medical history includes no chronic disease conditions, and she takes no medications. Temperature is 37.0°C (98.6°F), pulse rate is 105/min, respirations are 25/min, and systolic blood pressure is 100/65 mmHg. Oxygen saturation is 98% on room air. Laboratory studies show that sex hormone and gonadotropin-releasing hormone levels are consistent with prepuberty. X-ray studies show no abnormalities. Which of the following is the most likely diagnosis?
A. Benign premature adrenarche
B. Benign premature menarche
C. Benign premature thelarche
D. Idiopathic precious puberty
E. McCune-Albright syndrome
Benign premature adrenarche
The most likely diagnosis for the 5-year-old girl described is premature adrenarche. This condition involves the early onset of adrenal androgen production leading to the development of pubic hair, axillary hair, or adult body odor in young children. Importantly, it does not involve the development of other secondary sexual characteristics such as breast development or menstruation, which would indicate true central precocious puberty. The key factor in premature adrenarche is that it occurs in the absence of elevated gonadotropin levels or other signs of gonadal activation, which matches the description of the girl’s lab results being consistent with prepuberty.
At what age can an infant start drinking water?
6 months
At what age should parents start toilet training?
18-24 months
At what age does a child transition to a forward-facing car seat?
2 years
What is the greatest associated risk factor with Trisomy 21?
Advanced maternal age
What vaccine is associated with a greater risk of intersuseption?
Rotavirus
At what age do infants develop stranger anxiety?
6 months
