What is Phlebotomy?
Phlebotomy is also called a blood draw or venipuncture. It is used to diagnose many medical conditions and therapeutic phlebotomy to treat people with:
- Nonalcoholic fatty liver disease
- Polycythemia vera
- Porphyria cutanea tarda
- Sickle cell disease
Typically there is no specific preparation for most blood tests. However, doctors will give instructions for some people who may need fasting for 8-12 hours ahead of time.
Risks and Side Effects
You should be OK afterward but still experience uncomfortable feelings, including:
- You might experience a vasovagal reaction, a physical response from your nervous system which could make you feel dizzy, sweaty, cause your heart rate or blood pressure to drop, and even faint.
- Relaxation techniques like deep breathing
- If dizzy afterward, lie or sit down and put your head between your knees until you stop feeling lightheaded.
- Redness or bruising where the needle may appear in the next day
- The spot might be a little sore, too
- The doctor will recommend drinking plenty of fluids, avoid alcohol, and not exercising for the next few hours.