A medical professional will use a butterfly needle to draw your blood or to try and access a vein to give intravenous (IV) medications. Alternatively, they may use an intravenous catheter.

IV catheters can be placed in a hand ... No needle remains in your body. (So-called "butterfly" needles are an exception to this). Some healthcare providers use a little bit of local anesthetic ...

With IV administration, a thin plastic tube called an IV catheter is inserted into your vein. The catheter allows your healthcare professional to give you multiple safe doses of medication without ...