My 4 yo daughter was diagnosed with Hyperthyroid last week. I had to request the test due to concerns about her energy level and insomnia. She is VERY energetic! Her attention is great, but she has trouble staying still. She goes to bed at night with no problems at 8:30pm, however she rarely falls asleep before 11pm, then wakes up with no problems in the morning. She also itches incessantly (she will go through four different outfits in the morning trying to find something that does not itch). She is tall and skinny, 42.5 inches, and 52 lbs. She eats ALOT! she will have 4 packets of oatmeal and a glass of milk in the am. Another possible symptom is nocturnal enuresis. She is on DDAVP at night .05 mg X approx. 4 months. If I remember to wake her up around 2am she may be dry, before the DDAVP she was going through 2 goodnights diapers a night... if I didn't change it midway she and the bed would be completely soaked.
Anyway, her Thyroid was hyperactive, and she is allergic to Milk and Eggs (she did have hives when we were at the Dr). The lab tests ordered were: Basic Metabolic w/EGFR, CBC w/ Diff/PLT, Immunocap, T-4Free, TSH w/reflex to FT4.
The abnormal lab results are:
T-4 Free: 3.0 (normal = 0.9 - 1.6),
TSH w/reflex to FT4: 0.01 (normal = 0.50 - 4.30),
Creatinine: 0.34 (normal = 0.50 - 1.20),
BUN/Creatinine Ratio: 32 (normal 6-22),
Platelet Count: 458 (normal = 140-400),
Milk IgE: 0.51 & Egg White (F1) IgE: 0.37 (normal <0.35)
The other piece of her history that may or may not be relevant is that when she was 9 mos old they discovered that her thymus was enlarged. She was followed by a pediatric Hematologist-Oncologist for 4 months due to abnormal lab values, primarily elevated T-cells (CD4 & CD8) and the fact that they were finding 'immature' T-cells in her bloodstream.
They did a thyroid US and a nodule was found measuring 0.4cm. The US was done on friday, as well as a Thyroid panel.