How It Feels
You will feel a sharp sting when the
local anesthetic is injected to numb your skin over the catheter insertion
site. When the catheter is inserted, you may feel a brief, sharp pain. The
movement of the catheter through your blood vessel may cause a feeling of
pressure, but it is not usually considered painful. People commonly experience
skipped heartbeats for a few seconds when the catheter touches the walls of the
heart.
If a dye (contrast material) is injected, you may feel warm
and flushed and have a metallic taste in your mouth. Some people feel sick to
their stomach or have a headache. You also may feel nauseous or lightheaded,
have chest pain, irregular heartbeats, an urge to cough, mild itching, or
hives from the contrast material. If you have any of
these symptoms, tell your doctor how you are feeling.
The
temperature in the catheterization lab is kept cool so that the equipment does
not overheat. For many people, the most difficult aspect of the test is having
to lie still for an hour or more on the hard table. You may feel some stiffness
or cramping.
Call your doctor immediately if you have chest pain,
extreme shortness of breath, dizziness, trouble speaking or swallowing, or
paralysis in any part of your body during or after the
test.
You may experience some soreness and bruising at the
insertion site. This is temporary and should disappear within 2 weeks. It is
normal for the site to feel tender for about a week. Call your doctor
immediately if:
- Your arm or leg becomes pale, cold, painful, or
numb.
- Redness, swelling, or discharge from the catheter insertion
site develops.
- You have a fever.