Where should you not draw blood?

Where should you not draw blood?

• A. From a hand vein with proper technique
• B. In the opposite arm if possible
• C. From a healthy antecubital area
• D. Above an IV site

Answer: (D)

Drawing blood from a vein that is above an IV site is avoided because IV fluids or medications can contaminate the specimen, diluting or altering lab values and leading to inaccurate results. It also increases the chance of backflow into the IV line and vein irritation or infiltration. The safest approach is to use a site away from any active IV, such as a vein in the opposite arm or a healthy hand/antecubital vein, using proper venipuncture technique. Therefore, you should not draw blood above an IV site.

Drawing blood from a vein that is above an IV site is avoided because IV fluids or medications can contaminate the specimen, diluting or altering lab values and leading to inaccurate results. It also increases the chance of backflow into the IV line and vein irritation or infiltration. The safest approach is to use a site away from any active IV, such as a vein in the opposite arm or a healthy hand/antecubital vein, using proper venipuncture technique. Therefore, you should not draw blood above an IV site.