Im not sure if I am on the right board, but here is my problem... My 3 year old went in for her 3 year physical about a month ago. The only issue we were having was her being whinny and irritable, but thats just her. Her doctor said it was time for her to have a lead test done so we went ahead and had her blood drawn. The lead test was fine but the CBC came back with a few highs and lows. The doctor said it was nothing but he wanted to retest in a month. Now she has had her second CBC that also has the highs and lows. I called and left a message with the doctor, but a nurse called back and left me a message that said the CBC was normal. Here are both of the CBC's, should I worry, or should I just drop it.:confused:
------- APRIL- MAY - RANGE
WBC's - 6.4 / 6.5 / 6.0-17.5
RBC --- 4.36 / 3.88 L / 3.9-5.3
HGB --- 13.2 / 12.4 / 10.5-14.5
HCT --- 38.1 H / 34.2 / 33-38
MCV- --87.3 H / 88.2 H / 70-86
MCH- --30.3 / 32.1 H / 23-31
MCHC -- 34.7 / 36.4 H/ 30-36
RDWblood-11.8/ 13.4 / 11.5-14.5%
Platelets- 637 H / 418 H / 130-400
MPV ---- 6.4 L / 7.1 L 7.4-10.4

I don't think there is any cause for concern by the amounts, but I would definitely ask to set up a call with the doctor for 5 minutes to go over the specifics of your concerns.
I think the RBC count could be low because your child didn't have enough iron that day or something, which can then affect the platelets.
I'm not a doctor though so just ask your doctor the specifics. I would if I were in your shoes.