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After Your Blood Draw

Reactions to blood draws are rare and, if they occur, are usually mild. Side effects are similar to those experienced by some people following a blood donation. Experts generally recommend the following precautions:
  • Wait at least 15 minutes before removing the bandage.
  • If you feel dizzy or lightheaded, lie down immediately and elevate your legs until the feeling passes.
  • In rare cases where bleeding occurs after removing the bandage, apply pressure to the site of the bleeding and raise your arm for 3 to 5 minutes.
  • If bleeding or bruising occurs under the skin, apply a cold pack to the area periodically for the first 24 hours.
  • For 12 hours after your blood draw:

    Avoid heavy lifting.
    Drink plenty of fluids and avoid strenuous exercise.
    Eat a healthy meal.

Contact your doctor if you:
  • Continue to feel nauseated, lightheaded or dizzy after resting, eating or drinking.
  •  Feel pain or tingling down your arm, into your fingers.

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