Call 911 anytime you think you may need emergency care. For example, call if:

• You passed out (lost consciousness).
• You have symptoms of a heart attack. These may include:
  • Chest pain or pressure, or a strange feeling in the chest.
  • Sweating.
  • Shortness of breath.
  • Nausea or vomiting.
  • Pain, pressure, or a strange feeling in the back, neck, jaw, or upper belly, or in one or both shoulders or arms.
  • Light-headedness or sudden weakness.
  • A fast or irregular heartbeat.
  After you call 911, the operator may tell you to chew 1 adult-strength or 2 to 4 low-dose aspirin. Wait for an ambulance. Do not try to drive yourself.
• You have symptoms of a stroke. These may include:
  • Sudden numbness, tingling, weakness, or loss of movement in your face, arm, or leg, especially on only one side of your body.
  • Sudden vision changes.
  • Sudden trouble speaking.
  • Sudden confusion or trouble understanding simple statements.
  • Sudden problems with walking or balance.
  • A sudden, severe headache that is different from past headaches.

Call your doctor or nurse advice line now or seek immediate medical care if:

• You are bleeding from the area where the catheter was put in your blood vessel.
• You have a fast-growing, painful lump at the catheter site.
• You have signs of infection, such as:
  • Increased pain, swelling, warmth, or redness.
  • Red streaks leading from the catheter site.
  • Pus draining from the catheter site.
  • A fever.
• Your leg, arm, or hand is painful, looks blue, or feels cold, numb, or tingly.

Watch closely for any changes in your health, and be sure to contact your doctor or nurse advice line if you have any problems.