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needle gauge
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  1. Photogenic
    Hello everyone! I've read that 18-21 gauge is the norm for drawing blood, but I have a 23 gauge 1inch. Has anyone ever tried a gauge that small? I've heard a needle too small might mess up results, but I don't know if that's true. I also have a 20gauge needle but it's 1.5 inches. Is that too...
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