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thread: Dr Test Accuracy?

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  1. #1
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Question Dr Test Accuracy?

    I'm sooooo confused.

    I got a BFP last night - tested at about 1900 hrs. It was clear and no doubt that it was positive.

    Tonight I went to the Dr's and I did a urine test - came back NEGATIVE . He explained I still could be positive etc, and that it is possible to get false positives and false negatives etc - I felt soooo embarrassed!

    So like any other lady would do, I bought another HPT on my way home and you guessed it - BFP again. Once again, the test clearly indicated it was positive.

    Although I'm going off for a BT tomorrow morning, I was just wondering what the accuracy rating is of those Dr tests. It looked like a white rectangular cartridge - no brands / colours on it.

    Don't know if the beef curry and pepsi max that I ate minutes to going to the Dr had anything to do with it?

    ARGH - I'm confused!!

  2. #2
    Registered User

    Oct 2009
    Bonbeach, Melbourne
    7,177

    Babe, docs tests are notorious for being not as sensitive as store bought tests They detect much higher amounts of hcg than store boughts and internet cheapies. Have your beta, (make sure it's quantitive, not qualitive to avoid more confusion lol) but I think you can safely assume you're utd

  3. #3
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    I just looked at the Clinpath forms and the Dr just typed :

    ?Pregnant

    then on the bottom part of the perforated form it said:

    HCG.

    Doesn't sound too descriptive to me - but I'm no expert!

  4. #4
    Registered User

    Oct 2009
    Bonbeach, Melbourne
    7,177

    basically, if they do a qualitive test (this is very common) it will be a pass/fail. This varies on the lab it's done in. For some, the cut off number for pregnancy will be a hcg level of say, 25, others may be 30, others may be 15. So you could be utd and they say you are not, simply because it is too early. A quantitive they will tell you what that number is, and usually do another one to confirm it is rising. But I would say with 2 pos hpt's, you are definately utd!

  5. #5
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Thank you PZ...You're a wealth of info (as per usual :-)

    I hope its not a pass / fail test they give me - I feel nervous like I'm about to sit an exam lol!

  6. #6
    Registered User

    Oct 2009
    Bonbeach, Melbourne
    7,177

    Bahahaha! You will not fail, trust me If they say, hmmm well it says 'not pregnant' just say, psssht, I've done x amount of hpt's (and look on the box to see the level of miu or mui or whatever it's called, the amount of hormone basically that the test will measure) that detect x amount of miu, how much do your tests detect? And can I have a quantitive. And you smell I am 100% certain you're utd...

    Out of interest, what will your august fitness goal be now

  7. #7
    Registered User

    Nov 2007
    Southwest Syd
    1,858

    Dr Test Accuracy?

    Leesa I too think u are def pg as the others have said the drs tests are not as sensitive. Yay for the pathology helping out with the form

  8. #8
    Registered User

    Jul 2007
    Rural NSW
    491

    I did about 12 HPT when I got my positive then I waited a week to go to the DR and the Dr's test was negative. He sent me for bloods and I was infact pregnant.

    When I went back for my checkup at 8 weeks he said that the tests they had were faulty as several other women that week were pregnant and not tested positive.

    Maybe thats what it was...but I remember waiting for those test results

  9. #9
    BellyBelly Life Subscriber

    Jun 2009
    Sydney, NSW
    2,140

    Dr Test Accuracy?

    Leesa, I've been following your thread. the results came back positive.
    I'm I can join the April BellyBuddy group with you for a little Aries baby.
    All the best for a happy and healthy pregnancy.

  10. #10
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Join me CBG!!!! Praying for ya hun!!!! Sending vibes your way :-)

    I'm stoked about this extra two weeks - it means there is a slight chance bubs could be born on my Mums birthday! What are the chances eh? Even if its near the date I'm stoked :-D

  11. #11
    BellyBelly Life Subscriber

    Jun 2009
    Sydney, NSW
    2,140

    Dr Test Accuracy?

    What a wonderful birthday present for your Mum. I wonder if she has had a part in bringing you your little miracle?

    I've thought about the due date too Leesa, IF I'm fortunate enough baby would be born between DP and mine birthday. After 14 cycles you'd think it'd happen already.

  12. #12
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    When are you going to test CBG ;-)

  13. #13
    BellyBelly Life Subscriber

    Jun 2009
    Sydney, NSW
    2,140

    Dr Test Accuracy?

    Given up testing now, I just wait for the temp to drop and AF to arrive. CD 23 today.
    IF AF arrives I've got to book in for a HyCoSy thingo.

  14. #14
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Sending pg vibes your way :-)

  15. #15
    BellyBelly Life Subscriber

    Jun 2009
    Sydney, NSW
    2,140

    Dr Test Accuracy?

    Thanks

  16. #16
    Registered User

    Nov 2009
    Scottish expat living in Geelong
    5,572

    Number of weeks pregnant is counted from the last period you had, and that is usually 2 weeks before ovulation. So at ovulation, if you conceive, you are immediately 2 weeks pregnant. 2 - 3 weeks from then would be the earliest the pregnancy could be detected, making you 4 - 5 weeks pregnant

  17. #17
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Yeeeeeeeehaaaaaaaaaa :-D

    Awesome news Traveller - thank you soooo much!

  18. #18
    Registered User

    May 2006
    Igglepiggle Land
    2,742

    Just posting that after the repeat blood HCG test it's come back that I have levels equipvelent to about 4-5 wks. Last week it was between 2-3 weeks :-)

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