Kirsten - did a quick Google search for you.

White blood cells or leukocytes are cells of the immune system which defend the body against both infectious disease and foreign materials. In conditions such as leukemia the number of leukocytes is higher than normal, and in leukopenia this number is much lower.

Leukopenia (or leukocytopenia, or leucopenia or leukopaenia) is a decrease in the number of circulating white blood cells (leukocytes) in the blood...a decrease in the number of these cells can place patients at increased risk for infection.

Lymphocytes - have 3 types of cells, and are part of the immune system.

Eosinophils make up about 1-5% of white blood cells(in humans). They are also involved in fighting infection when it is present.

Platelets or thrombocytes are the cell fragments circulating in the blood that are involved in the cellular mechanisms of primary hemostasis leading to the formation of blood clots. This means the clotting ability is a bit low, that's all.

Kirsten - many years ago, I was 14, and had had one of many throat infections that plagued me during my teen and young adult years.

Afterwards, there was a raised lymph node on my neck, and my mom was worried. Dad checked with the doctor at his workplace - first thing he asked is if I had had an infection lately. Yes - and I had been on antibiotics. He said that was totally normal.

The lymph system cleans out the 'war dead' - the bad infection bits that are killed when the meds are given and as the body fights the infection.

Her iron and red cell count is normal; the white cells are out of whack from the recent infection and treatment (and stress can affect that too - the immune response/white cells).

If she was up to it - a blood test would show the levels would be much different in a couple of weeks' time.

HUGS