QuantiFERON & Blood Titer Testing

Overview & Benefits

Why These Tests Are Important

Both QuantiFERON and antibody titers provide valuable information about past exposure and immune protection. These tests are frequently required for:

• Healthcare workers and students
• Employment screenings
• School or university enrollment
• Travel requirements
• Individuals without complete vaccination documentation

Testing can help identify whether vaccination or additional medical evaluation may be recommended.

Services

Schedule
QuantiFERON Test

Overview & Purpose

The QuantiFERON test (often called QuantiFERON-TB Gold) is a blood test used to help identify tuberculosis (TB) infection. It measures how your immune system reacts to TB-specific proteins.

Unlike the traditional TB skin test, this test requires only one visit and does not require a follow-up appointment to read results. It is especially useful for individuals who have received the BCG vaccine, since prior vaccination does not affect the accuracy of the test.

Includes

Common reasons to order a QuantiFERON test:

• Screening for possible tuberculosis exposure
• Employment or occupational health requirements
• Pre-treatment screening before immunosuppressive medications
• Situations where returning for a TB skin test reading is difficult
• Individuals vaccinated with BCG who need accurate TB screening

Results are typically reported as positive, negative, or indeterminate, and further evaluation may be recommended if results are positive.

Blood Titer Tests

A blood titer test measures the level of antibodies in your bloodstream to determine whether you have immunity to certain infections. These tests are commonly used to confirm immunity when vaccination records are unavailable or when proof of immunity is required. Antibody levels are measured and compared to established reference ranges to determine whether immunity is considered protective.

Schedule
Hepatitis A Antibody Titer

Overview & Purpose

This anti-HAV assay is indicated as an aid in the diagnosis of previous or ongoing hepatitis A viral infection or in the identification of HAV-susceptible individuals for vaccination.

Includes

• Results available in: 1–2 Days
• Specimen type: blood draw

Schedule
Hepatitis B Antibody Quantitative Titer

Overview & Purpose

This test is useful for quantitative (i.e. titer) evaluation of possible immunity in individuals who are at increased risk for exposure to hepatitis B (i.e. hemodialysis unit personnel, venipuncturists, etc.). This test can be used to evaluate the need for hepatitis B immune globulin after needlestick injury, to evaluate the need for hepatitis B vaccine and to follow immune status after hepatitis B vaccination.

Includes

• Results available in: 1–2 Days
• Specimen type: blood draw

Schedule
Rabies Antibody Titer

Overview & Purpose

Test used to determine a person's immunity to rabies virus.

Includes

• Results available in: 3–4 Weeks
• Specimen type: blood draw

Schedule
Varicella Antibody IgG Titer

Overview & Purpose

Standard test used to determine a person's immunity to chicken pox.

Includes

• Results available in: 1–2 Days
• Specimen type: blood draw

Schedule
Measles, Mumps, Rubella (MMR) Immunity Profile

Overview & Purpose

You may need to determine your immunity to Measles, Mumps and Rubella if you are a healthcare worker, because you may come in contact with children and adults who have measles, mumps, or rubella. You may also have this test if you are planning to become pregnant or are pregnant.

Includes

• Results available in: 1–2 Days
• Specimen type: blood draw

 

Overview & Purpose

Getting tested is quick and convenient:

• Step 1: Order the test online.
• Step 2: Visit a local lab for a blood draw.
• Step 3: Receive results electronically, typically within a few business days.