CD-57

[Christianmom]

I know that the CD-57 test is just a number and that lyme is a clinical diagnosis, but I am trying to figure out why my son's CD-57 was 100 (tested before starting lyme treatment). If it was lower (below 60), I would definitely suspect lyme. But yet it isn't as high as it should be either (>200 = healthy). My son has been on lyme treatment for almost 3 months. Should I have him tested again?

[MichaelTampa]

That's a pretty borderline score. I have had mine tested about 8 times over the last year and a half. As treatments have stopped and restarted here and there, things gotten better and worse, I have found it useful in helping understand what is going on and what is the right next step. So I guess I am recommending periodic testing.

[philamom]

I know that the CD-57 test is just a number and that lyme is a clinical diagnosis, but I am trying to figure out why my son's CD-57 was 100 (tested before starting lyme treatment). If it was lower (below 60), I would definitely suspect lyme. But yet it isn't as high as it should be either (>200 = healthy). My son has been on lyme treatment for almost 3 months. Should I have him tested again?

I didn't think the CD-57 was a reliable test for children.

[mama2alex]

That was my impression too. The only LLMD I've ever heard of who uses it with children is the doctor who created the test.

[Christianmom]

That was my impression too. The only LLMD I've ever heard of who uses it with children is the doctor who created the test.

Would you consider 16 old enough to consider the results meaningful?

[MichaelTampa]

What I have read is that some docs don't consider it meaningful for children as they don't start making the natural killer cells being measured until the age 13-15 range. I would consider it pretty worthwhile to look at for a 16yo.