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Credentials that raise your pay

• RCIS (Registered Cardiovascular Invasive Specialist)

  The catheterization lab credential from Cardiovascular Credentialing International. The best paid of the entry credentials.

• RCES (Registered Cardiac Electrophysiology Specialist)

  For heart rhythm lab work. A smaller, well paid niche.

• RCS (Registered Cardiac Sonographer)

  The echocardiography credential. Many people hold this plus one other.

• RDCS (Registered Diagnostic Cardiac Sonographer)

  The adult echocardiography credential from the sonography registry, widely asked for in job postings.

• CCT (Certified Cardiographic Technician)

  The entry-level tracing and monitoring credential, often a first step while you study for more.