I got a blood test a couple of days ago and now my arm has turned red from the elbow to the wrist. the spot where the needle was inserted is very touchy.

Any : Any time a patient has penetration of the skin, there can be risk of infection or other problems. When a needle penetrates the skin, bacteria can be disrupted, causing infection. Bleeding and bruising can also occur, making the skin appear darker red. If a patient has redness or concerns of infection then they should be evaluated for possible infection. It would be reasonable for a patient in that circumstance to call the doctors office who performed the test and inform them of the issue.

Phlebitis : infection of phlebitis or cellulitis is a know complication from venipuncture or blood draw, if is localized then warm compresses are used, if it has spread one needs antibitioic and urgent evaluation form learned medical providers who understand the extent and severity ie see a docoto