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Help with Syringe and Needles
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<blockquote data-quote="Matthew1975" data-source="post: 240785" data-attributes="member: 16306"><p>Like Vince said, the key to drawing anything out of a vial is to add air equal to, or very slightly more, than what you want to draw out. Otherwise, you are essentially pulling against a vacuum. </p><p></p><p>If you want to pull 0.25 ml of solution, pull the plunger on the syringe back to 0.25 ml or just slightly more, inject that air into the vial. Do NOT overpressurize the vial, as solution may squirt out. Do not remove the needle.</p><p></p><p>Then, invert the vial so any air is at the top, the solution at the bottom. </p><p></p><p>Making sure the tip of the needle remains fully submerged in the solution, slowly pull back on the plunger. </p><p></p><p>To help drawing it up, if the testosterone is compounded, ask for grape seed oil as the carrier, as it has a lower viscosity. You can also warm the test solution in your hands so it flows better.</p><p></p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="Matthew1975, post: 240785, member: 16306"] Like Vince said, the key to drawing anything out of a vial is to add air equal to, or very slightly more, than what you want to draw out. Otherwise, you are essentially pulling against a vacuum. If you want to pull 0.25 ml of solution, pull the plunger on the syringe back to 0.25 ml or just slightly more, inject that air into the vial. Do NOT overpressurize the vial, as solution may squirt out. Do not remove the needle. Then, invert the vial so any air is at the top, the solution at the bottom. Making sure the tip of the needle remains fully submerged in the solution, slowly pull back on the plunger. To help drawing it up, if the testosterone is compounded, ask for grape seed oil as the carrier, as it has a lower viscosity. You can also warm the test solution in your hands so it flows better. Hope this helps. [/QUOTE]
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Help with Syringe and Needles
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