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Blood Drawing Specialist

Brendan Sullivan, MD, FACC

Board Certified in Internal Medicine, Board Certified in Cardiology & Board Certified in Nuclear Cardiology located in Clifton, NJ & Ridgewood, NJ

An essential part of disease prevention is routine lab testing, like blood drawing. In Clifton and Ridgewood, New Jersey, triple board-certified physician and cardiologist Brendan Sullivan, MD, FACC, offers the highest quality health care services in the region for diagnosing, managing, and preventing disease. To learn more about his convenient, on-site diagnostic services, book an appointment online or over the phone.

Blood Drawing Q & A

What is a blood draw?

A blood draw is a routine way of assessing the health of your organs and looking for signs of diseases, such as diabetes and high cholesterol. Specific problems blood tests can identify include:

  • Checking for organ damage or disease
  • Measuring your cholesterol for signs of heart disease
  • Reviewing your chemical balance and metabolism
  • Checking your blood count
  • Identifying infections

During your physical exam, Dr. Sullivan determines which lab tests to order based on your symptoms, medical history, overall health, and risk for disease.

Why do I need a blood draw?

Dr. Sullivan might recommend blood tests for a variety of reasons, including.

Blood sugar

This blood draw checks the sugar, or glucose, in your blood. Dr. Sullivan uses this test to diagnose or manage your diabetes.


There are different types of blood chemistry panels to check your general health. Based on your personal needs, Dr. Sullivan might recommend:

  • A basic metabolic panel, which checks your kidneys and respiratory system
  • Comprehensive metabolic panel, which checks your kidneys and respiratory system and also measures proteins in your liver and blood
  • Electrolyte panel, which tests for fluid and electrolyte imbalances

Dr. Sullivan might also order a lipid panel to check for signs of cardiovascular disease.


This blood draw can measure the effectiveness of Type 1 and Type 2 diabetes treatments.

Complete blood count

A complete blood count, or CBC, is one of the most common blood draws. Dr. Sullivan uses this test to look for disorders in your immune system, blood, and bone marrow, in addition to other health concerns, like inflammation, dehydration, anemia, an infection. He might also order a CBC to see if your medications are managing your conditions well.

What can I expect during a blood draw?

During your blood draw, your technician uses a needle to collect a sample from your arm or finger. This process is usually quick, but the needle can sometimes cause mild discomfort. After obtaining your blood sample, it will go through analysis, and Dr. Sullivan will contact you with your results.

Most blood draws require little preparation, but some require fasting beforehand. If additional steps are necessary, Dr. Sullivan will provide instructions before your appointment.

For more information on blood draws, book an appointment online or over the phone with Brendan Sullivan, MD, FACC, today.