Methylene blue test
Risks
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Inserting an IV may be more difficult for you or your child than for other people. Other risks associated with this type of blood test are minor, but may include: - Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken, but the chances of infection increase the longer the IV remains in the vein)
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