How Do I Measure BAT?

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    How Do I Measure BAT?


    I would like to fine tune my TRT for a Bio-Avail Testosterone level of about 575.
    I have heard this test at Quest is preferred:
    Testosterone, Free, Bio/Total (LC/MS/MS) Code: 14966X

    My doc uses Labcorp. Do they have a suitable substitute test?
    If not, is there any other way to measure or calculate BAT?

    Thanks,
    Rob

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    Quote Originally Posted by longrob View Post
    I would like to fine tune my TRT for a Bio-Avail Testosterone level of about 575.
    I have heard this test at Quest is preferred:
    Testosterone, Free, Bio/Total (LC/MS/MS) Code: 14966X

    My doc uses Labcorp. Do they have a suitable substitute test?
    If not, is there any other way to measure or calculate BAT?

    Thanks,
    Rob
    Use lab corp it gives you a better break down.
    I just use shbg and total testosterone to get best indicator then look at the total testosterone to e2 ratio.
    I am not a medical Dr, please keep in mind that this answer is for information purposes only, and is not intended to diagnose, treat or replace sound medical advice from your physician or health care provider.
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    Quote Originally Posted by longrob View Post
    I would like to fine tune my TRT for a Bio-Avail Testosterone level of about 575.
    I have heard this test at Quest is preferred:
    Testosterone, Free, Bio/Total (LC/MS/MS) Code: 14966X

    My doc uses Labcorp. Do they have a suitable substitute test?
    If not, is there any other way to measure or calculate BAT?

    Thanks,
    Rob
    That is a good goal
    BAT~575

    I have refined this goal.

    Step #1 SHBG(15-25)

    At this point SHBG is more important than BAT.

    Step #2 BAT~575
    ----------------------------------------------

    When someone presently have
    SHBG>25

    goal for BAT~650

    additional testosterone should put a pressure on SHBG and get it lowered

    goal E2 slightly higher

    definitely do not use
    Danazol
    or
    Stanozolol (Winny)
    -----------------------------------------------
    When someone presently have
    SHBG<15

    goal for BAT~350
    goal for E2 slightly lower
    ------------------------------------------------

    Always, but specially when SHBG is out of good range it is important to have close control over
    glucose/insulin
    metabolism
    digestion

    adrenals
    and
    Thyroid

    when everything is adjusted close to desirable

    SHBG is sensitive to thyroid: TT3, FT3 & RT3

    it should fall in right place (going up or down) when thyroid hormones are being manipulated.

    ============================== ==============
    ============================== ==============
    When discussing BAT
    one must strongly focus on the fact that it is BAT from this test at Quest Diagnostics.
    Testosterone, Free, Bio/Total (LC/MS/MS) Code: 14966X

    One also must be aware that there is more and more of imposters.

    (deception under an assumed name or identity)

    It is not enough to be a pain in the neck and making sure that doctor writes complete name on the script,
    you have to make sure that you got what you should have got, read your test report.
    Laboratories are switching.
    Well, I know for sure that Quest Diagnostics switched on me and few others.
    -----
    Unfortunately, good thing we had with Quest Diagnostics hit a glitch.

    Their testosterone tests discussed here is still very good, so are thier other tests.

    Unfortunately when we run TRT we must monitor E2-Estradiol.

    Quest dropped the ball with their E2 testing.
    It is unacceptable.
    Practically it returns random numbers.

    My next testing I will do at LabCorp.

    Their tests are just as good,
    their estradiol test seems to work.
    I am talking only about this tests:

    Estradiol, sensitive 140244 (3-70)

    What is left is our BAT.

    When at LabCorp do not use thier BioAvailableTestosterone.
    Look up imposters (above).

    BAT can be approximated by testing at LabCorp (or anywhere else)

    TotalT
    SHBG
    Albumin

    and using dr Vermulen's chart to find out FreeT
    this chart:

    http://www.andropause.org.uk/nomo_tas.pdf

    On that chart

    BAT~575 corresponds to FreeT(300-350)

    BAT~600 -------------->FreeT~400
    BAT~350---------------.FreeT~200

    ============================== ======================

    It would be ok to do all testing at Quest
    and
    do only Estradiol at LabCorp.

    pain
    .
    •   
       

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    BAT IS CRAP TEST // TESTOSTERONE TOTAL + SHBG

    WASTE OF GOOD INSURANCE MONEY

    BAT OF 575 seems to be a very high number.. I don't think many people are able to achieve this?
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    Quote Originally Posted by JanSz View Post
    That is a good goal
    BAT~575

    I have refined this goal.

    Step #1 SHBG(15-25)

    At this point SHBG is more important than BAT.

    Step #2 BAT~575
    ----------------------------------------------

    When someone presently have
    SHBG>25

    goal for BAT~650

    additional testosterone should put a pressure on SHBG and get it lowered

    goal E2 slightly higher

    definitely do not use
    Danazol
    or
    Stanozolol (Winny)
    -----------------------------------------------
    When someone presently have
    SHBG<15

    goal for BAT~350
    goal for E2 slightly lower
    ------------------------------------------------

    Always, but specially when SHBG is out of good range it is important to have close control over
    glucose/insulin
    metabolism
    digestion

    adrenals
    and
    Thyroid

    when everything is adjusted close to desirable

    SHBG is sensitive to thyroid: TT3, FT3 & RT3

    it should fall in right place (going up or down) when thyroid hormones are being manipulated.

    ============================== ==============
    ============================== ==============
    When discussing BAT
    one must strongly focus on the fact that it is BAT from this test at Quest Diagnostics.
    Testosterone, Free, Bio/Total (LC/MS/MS) Code: 14966X

    One also must be aware that there is more and more of imposters.

    (deception under an assumed name or identity)

    It is not enough to be a pain in the neck and making sure that doctor writes complete name on the script,
    you have to make sure that you got what you should have got, read your test report.
    Laboratories are switching.
    Well, I know for sure that Quest Diagnostics switched on me and few others.
    -----
    Unfortunately, good thing we had with Quest Diagnostics hit a glitch.

    Their testosterone tests discussed here is still very good, so are thier other tests.

    Unfortunately when we run TRT we must monitor E2-Estradiol.

    Quest dropped the ball with their E2 testing.
    It is unacceptable.
    Practically it returns random numbers.

    My next testing I will do at LabCorp.

    Their tests are just as good,
    their estradiol test seems to work.
    I am talking only about this tests:

    Estradiol, sensitive 140244 (3-70)

    What is left is our BAT.

    When at LabCorp do not use thier BioAvailableTestosterone.
    Look up imposters (above).

    BAT can be approximated by testing at LabCorp (or anywhere else)

    TotalT
    SHBG
    Albumin

    and using dr Vermulen's chart to find out FreeT
    this chart:



    On that chart

    BAT~575 corresponds to FreeT(300-350)

    BAT~600 -------------->FreeT~400
    BAT~350---------------.FreeT~200

    ============================== ======================

    It would be ok to do all testing at Quest
    and
    do only Estradiol at LabCorp.

    pain
    .

    JansZ, I think you are forgetting that the total testosterone range at Labcorp is different than at Quest. Quest goes up to about 1100 whereas Labcorp goes to about 800. Therefore, you don't need your BAT levels when using Labcorp to be as high as when using Quest. Maybe shooting for a free testosterone of around 225 pg/ml would be best. 300-350 pg/ml is too high a goal since you would need total T around 1100ng/dl. Trying to shoot for a total testosterone of 1100 when using Labcorp is roughly equivalent to shooting for around a 1500 when using Quest. This is probably not good for general health (especially cholesterol and BP).
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    Quote Originally Posted by weierstrass View Post
    JansZ, I think you are forgetting that the total testosterone range at Labcorp is different than at Quest. Quest goes up to about 1100 whereas Labcorp goes to about 800. Therefore, you don't need your BAT levels when using Labcorp to be as high as when using Quest. Maybe shooting for a free testosterone of around 225 pg/ml would be best. 300-350 pg/ml is too high a goal since you would need total T around 1100ng/dl. Trying to shoot for a total testosterone of 1100 when using Labcorp is roughly equivalent to shooting for around a 1500 when using Quest. This is probably not good for general health (especially cholesterol and BP).
    I think you are not correct.

    One should get same value, when measuring testosterone at Quest or LabCorp.

    Ranges that laboratories use (mostly) correspond to the population that they serve.
    Possibly it also depends on statistical manipulations that they may use.

    It seems that Quest and LabCorp have a similar old patients population but Quest must have more young bucks or old farts like me on 175mg/week test.

    LabCorp(241-827)
    Quest(250-1100)
    ....

    I am looking at my LabCorp 4/28/2006 report
    TotalTest=1039(241-827)

    Now from Quest 1/26/2010 report
    TotalTest=1061(250-1100)

    .

    .
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    Quote Originally Posted by JanSz View Post
    I think you are not correct.

    One should get same value, when measuring testosterone at Quest or LabCorp.

    Ranges that laboratories use (mostly) correspond to the population that they serve.
    Possibly it also depends on statistical manipulations that they may use.

    It seems that Quest and LabCorp have a similar old patients population but Quest must have more young bucks or old farts like me on 175mg/week test.

    LabCorp(241-827)
    Quest(250-1100)
    ....

    I am looking at my LabCorp 4/28/2006 report
    TotalTest=1039(241-827)

    Now from Quest 1/26/2010 report
    TotalTest=1061(250-1100)

    .

    .

    JansZ that is really interesting. The reason I stated otherwise is because of what Dr. John said in the sticky "Message Board Myths" (which you posted in) on the ATM forum. Are you saying that Crisler is incorrect here? He might be, but I would find it hard to believe that he doesn't know what's up. He seems very adamant that laboratories with different ranges will give different results.
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    Quote Originally Posted by weierstrass View Post
    JansZ that is really interesting. The reason I stated otherwise is because of what Dr. John said in the sticky "Message Board Myths" (which you posted in) on the ATM forum. Are you saying that Crisler is incorrect here? He might be, but I would find it hard to believe that he doesn't know what's up. He seems very adamant that laboratories with different ranges will give different results.
    One day, if possible within 1/2 hr
    go to LabCorp and Quest

    report back

    ----------------
    Or, if you are like me on EOD schedule,
    take two days,
    go on day of the shot right before shot
    day#1 to LabCorp
    day#3 to Quest

    report back

    ..............
  

  
 

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