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typical size needle used for fine needle aspiration
A procedure called fine-needle aspiration allows the clinician to extract cells directly from the lump for further evaluation.
If the needle isn't sterile and you are the only one to use it, you could get an infection. If the needle isn't sterile and other people have used it, you could get an infection or diseases as bad as AIDS
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A needle is inserted into the tumor and a sample is withdrawn
You can only use a New needle for piercing. and they are sterilized in a lab.
Removing fluid from a lung cavity, typically by needle aspiration.
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Fine needle aspiration; with imaging guidance
To remove fluid by suction with a needle is aspiration, which can be done through a centesis, which is a puncture of a body cavity.
needle
The most common procedure for removing fluids is venipuncture or drawing blood from a vein. In this procedure, the syringe and a needle of the proper size are used with a vacutainer.