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Thread: Wasting test in syringe

  1. #1
    Machdiesel's Avatar
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    Wasting test in syringe

    Ok so I saw a video where it said pull back on the plunger slightly before you inject to make sure you get all the test injected. When I did this more test came into the syringe. So much my dosage went from .3 ml to .4 ml. My question is should I just draw to .3 then inject and just take the extra test lost as a waste, should I draw less then .3 then pull back? What do you guys do?

    Does the syringe take In account what is In the needle so once I draw .3 and take out the needle there's .3 ml I'm the needle? If this is the case I should pull back untill all the test is In the syringe then inject so I get the full.3. My first time I didn't pull back and had lost of test stil In the syringe
    Last edited by Machdiesel; 11-01-2013 at 07:21 AM.

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    Bro after you draw the desired amount you then pull the pin out of the vial...then after you push on the plunger to get a drop of test to lube the pin then pull back a bit and let a bit of air back into the needle then inject...
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  3. #3
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    Easy enough thanks, I'm new to injecting so prob over thinking it

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    Just watched the video from the lowT sponsor. That says to draw out the exact amount you want, then before switching needles draw back all the test in the needle. I guess It doesn't really matter as lomg as I'm consistent because I'm going by bloodwork, just checking if the ml on the syringe accounts for the extra test in the needle

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    no one in the medical profession will tell you to put air bubble in your syringe before you inject, the standard practice is to make sure there is no air bubble, but most of us as GBd noted we do it on our own, very small bubble to get all the test out of the needle. if you go SQ then there is no need for this.

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    Well here's what I mean. For me I take 60mgs e3d. My syringe is a 1ml so I draw back to .3. I remove the needle from the vial. I pull back on the plunger so the test in the needle and hub is in the syringe and there's alil air. I switch needles and push on the plunger until I slight drip of test comes out to libricate the needle. I inject slowly and wait 5 seconds after all the test is in and remove. My only quesrion was will this method give me more then my .3 . As stated I'm going by bloodwork so as lomg as I use the same method every time I'll adjust dose to fit my sweet spot. Also i have a script for more then I use so running out isn't a problem

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    one drop won't make a difference either way. BTW, you should pull back on the plunger before you remove your needle, this way you don't waste what's in the needle that you are going to throw away. I know where you're coming from, you're new to this and want to fully understand how it works, I went though it too. like mentioned above don't over think it, its really simple. are you doing SQ or IM?

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    jay adams is offline Associate Member
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    Do like Bass said and pull it all in the syringe. Put the new tip on. Then push the test to where the plunger will stop after you inject. Now you have nothing in the tip, its all still in the syringe up to where the plunger is gonna stop. Flip it over and flick all that air up to the plunger filling up the needles cavity with test. Now all the air up by the plunger will push every bit into your muscle and that air will be left in the cavity where the plunger stopped.

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    ^ that's the video that I watched and it said there's roughly .1 ml In the hub and needle so it confused me thinking I was injecting .4ml. Anyway im am using That method and after i get bloods
    Will adjust dose. As mentioned as long as I'm consitsnt and get bloods I'll get to the right dosage

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    I can't really understand this whole air bubble thing. The only way i see it working is if you got the air bubble between the oil and plunger.

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    jay adams is offline Associate Member
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    Quote Originally Posted by 3day View Post
    I can't really understand this whole air bubble thing. The only way i see it working is if you got the air bubble between the oil and plunger.
    Thats how it works "in-between the oil and plunger". Practice with water and you'll get to where the oil comes out perfect and the air is in the needle and needle cavity.
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    Quote Originally Posted by Machdiesel
    ^ that's the video that I watched and it said there's roughly .1 ml In the hub and needle so it confused me thinking I was injecting .4ml. Anyway im am using That method and after i get bloods Will adjust dose. As mentioned as long as I'm consitsnt and get bloods I'll get to the right dosage
    Since you are putting air in syringe to get dead space out, you are indeed getting .4ml when pulling to the .3 mark, so adjustments may be needed after blood work.

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    Thanks a lot, I'll draw 2.5 from now on

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    Quote Originally Posted by Machdiesel
    Thanks a lot, I'll draw 2.5 from now on
    May want to adjust after blood work since the .4ml may be ideal...

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    Quote Originally Posted by FRDave View Post
    Since you are putting air in syringe to get dead space out, you are indeed getting .4ml when pulling to the .3 mark, so adjustments may be needed after blood work.
    I'm not sure that's correct FRDave, I believe there is always waste in the needle. By using an air bubble you will get the full intended dosage. I've always used the bubble method when doing IM but I went to subQ a year ago and have never looked back..... the thought of wasting even a tiny amount of T is disturbing to me...
    Last edited by JD250; 11-02-2013 at 11:25 PM.

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    My thoughts, when you pull .3ml of test into the syringe. That is the measurement that is in there. That is including what is in the needle, tip and anywhere else inside the syringe under the rubber stopper. Backing it off after you fill it is just getting some air behind it to push 100% out. This does nothing else. You don't need to fill the syringe with less because the needle takes up .035 (rough guess) of the amount of test. Maybe that isn't completely true but it's just a unit of measurement that has to stay consistant.

    Do not change any of the original measurement. Just put air between the test and rubber stopper and inject 100% of test. This will give you an accurate injection. If you change protocol, do it the exact same way. I do same with HCG also.

    This topic gets way over thought. Waste not, want not. If I am throwing away even .001 of test that I could be using, I am going to try and save it. But, has nothing to do with the way I measure.
    Last edited by Brett N; 11-03-2013 at 09:56 AM.

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    crazy mike is offline Banned for repping Dangerous Substances
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    Either way everyone said is correct and a little air will not hurt. I myself don't do that. I myself do not worry about the miniscule amount left or injected. If a little less or a little more it is insignificant to me. Your body will never notice the difference, We are talking about an IM injection and it make no difference however if the compound was a life threatening drug and portent enough to kill you, and injected IV it would maybe mean something crucial.

    Simple Simon for me. When I change needles after my draw I can see my measurement accurately. Make the switch , push the air out and go with it. IMHOP . ...crazy mike
    Op this is a common Q's for the newbies, but you are way over thinking this!

  19. #19
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    Ok here's my crazy over analysis. First I'll say I don't care about waste, just proper dosage. Let's say I draw .3 ml exactly , then switch the needle. I lose what's in the needle but who cares I have exactly the dosage I need. Ok so now I put the other needle on and inject. When I pull out I still have some test In the hub and needle becuSe the plunger stops at the syringe. So I'm actually getting alil less . By pulling the plunger back before switching needles yes I'm getting more test, but after I inject I have some left over in the hub and needle also so they cancel each other out. So by pulling the test from the hub and needle in wouldn't you be getting a more accurate dodge ?

    Edit: at this point I decided to make this my method and whatever my bloodwork says I'll adjust. Since I use the same method every time the dosage will be accurate as far as consistency goes. Just curious how people injecting possible fatal drugs do it, seems like a huge flaw when percussion is needed
    Last edited by Machdiesel; 11-03-2013 at 12:13 PM.

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    Quote Originally Posted by JD250
    I'm not sure that's correct FRDave, I believe there is always waste in the needle. By using an air bubble you will get the full intended dosage. I've always used the bubble method when doing IM but I went to subQ a year ago and have never looked back..... the thought of wasting even a tiny amount of T is disturbing to me...
    The dead space account for ~.1ml.

    So if one were to pull to .3ml with no air bubble, they will inject .3ml, wasting .1ml which will sit in the dead space.

    If one were to pull to .3ml and inject with an air bubble, they will inject .4ml total since they cleared out the dead space.

  21. #21
    FRDave's Avatar
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    Quote Originally Posted by Brett N
    My thoughts, when you pull .3ml of test into the syringe. That is the measurement that is in there. That is including what is in the needle, tip and anywhere else inside the syringe under the rubber stopper. Backing it off after you fill it is just getting some air behind it to push 100% out. This does nothing else. You don't need to fill the syringe with less because the needle takes up .035 (rough guess) of the amount of test. Maybe that isn't completely true but it's just a unit of measurement that has to stay consistant. Do not change any of the original measurement. Just put air between the test and rubber stopper and inject 100% of test. This will give you an accurate injection. If you change protocol, do it the exact same way. I do same with HCG also. This topic gets way over thought. Waste not, want not. If I am throwing away even .001 of test that I could be using, I am going to try and save it. But, has nothing to do with the way I measure.
    When using a syringe with dead space, the amount in the dead space is not accounted for as the average patience will not draw air into the syringe to get the dead space out. So if your dosage is .5ml and you clear dead space using air bubble, you will get approx. .6ml depending on syringe used.

    You can test this theory using water and two syringes, one with dead space and one labeled as no dead space such as an insulin syringe.

  22. #22
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    Quote Originally Posted by FRDave View Post
    The dead space account for ~.1ml.

    So if one were to pull to .3ml with no air bubble, they will inject .3ml, wasting .1ml which will sit in the dead space.

    If one were to pull to .3ml and inject with an air bubble, they will inject .4ml total since they cleared out the dead space.
    I agree this is correct when not changing the needle. My point is when u change the needle your removing the extra .1ml. Then when you inject and pull the needle out there's test in the dead area so you lost some. Is it safe to say don't pull back when not changing the needle , but for most of us switching it's more accurate to pull that extra test in before switchingn

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    Quote Originally Posted by Machdiesel
    I agree this is correct when not changing the needle. My point is when u change the needle your removing the extra .1ml. Then when you inject and pull the needle out there's test in the dead area so you lost some. Is it safe to say don't pull back when not changing the needle , but for most of us switching it's more accurate to pull that extra test in before switchingn
    If switching needles, yes, you are correct. I personally inject with the same syringe/needle I draw with and can't feel a thing. Then again, I inject sub-Q so there could be a benefit to switching needles if injecting IM.

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    @ FRDave - So, since I draw .25 ml and then use an air bubble to push it out you are saying that I am actually injecting a little more? Not that it really matters as long as I do the same way every time but I'm just curious.

  25. #25
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    If you don't switch needles then yes

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