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ITP versus Pseudothrombocytopenia

  • alexander_anastasia@yahoo.com
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11 years 1 month ago #47486 by alexander_anastasia@yahoo.com
ITP versus Pseudothrombocytopenia was created by alexander_anastasia@yahoo.com
So my last two blood tests at my PCP my platelets have come back low 86 and then 76. Now I have to go have my blood drawn at hospital where they said they can keep it warm so it doesn't clump and they can get an accurate count. Does this sound like pseudothrombocytopenia?

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11 years 1 month ago #47487 by tamar
Replied by tamar on topic ITP versus Pseudothrombocytopenia
Honestly, it sounds like a PCP that doesn't trust his/her own lab. Either way, that count is typically very safe even if it is lower than "normal". Do you have any symptoms, or was this just found during routine bloodwork?

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  • Sandi
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  • Sandi Forum Moderator Diagnosed in 1998, currently in remission. Diagnosed with Lupus in 2006. Last Count - 344k - 6-9-18
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11 years 1 month ago #47497 by Sandi
Replied by Sandi on topic ITP versus Pseudothrombocytopenia
Did they say it was clumping in the sample? Sometimes they can still get a count even with clumping, but it will obviously come out lower than it actually is.

We've had a few here with pseudothrombocytopenia, but it's been rare.

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11 years 1 month ago #47500 by Aoi
Replied by Aoi on topic ITP versus Pseudothrombocytopenia
I went through a round like that. PCP office tests came back a bit low (80s), then a repeated draw there gave a TNP (test not performed), which in turn led to a different lab with a different phlebotomist, who used a vial with a different anticoagulant and a different colored cap (I think).

I've seen many problems with lab error over the years. Getting another round of testing at a different facility strikes me as a useful if costly and time-consuming way to mitigate against such errors.

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  • alexander_anastasia@yahoo.com
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11 years 1 month ago #47501 by alexander_anastasia@yahoo.com
Replied by alexander_anastasia@yahoo.com on topic ITP versus Pseudothrombocytopenia
Thanks for all the input! Besides some petechiae under my chin a couple weeks ago that resolved on it's own I've had no symptoms. My PCP said the second blood draw there's was clumping so it was hard to get an accurate count.

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  • Sandi
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  • Sandi Forum Moderator Diagnosed in 1998, currently in remission. Diagnosed with Lupus in 2006. Last Count - 344k - 6-9-18
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11 years 1 month ago #47503 by Sandi
Replied by Sandi on topic ITP versus Pseudothrombocytopenia
I've had that happen. I had to go to instant counts instead of the ones that are sent out to a lab. I didn't have any problems after that.

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