The Haemophilus influenzae type B IgG Antibody Test measures IgG levels against Hib bacteria to evaluate immune protection. Adequate antibody levels reflect vaccine response or past exposure, while low levels may indicate susceptibility to infection. This test supports assessment of immune status in children, immunocompromised patients, or individuals at risk for invasive Hib disease such as meningitis or pneumonia.

The Total Immunoglobulins Panel measures IgA, IgG, and IgM levels to evaluate immune system function. Abnormal results may indicate immune deficiency, chronic infections, autoimmune disorders, or certain blood cancers. IgA helps protect mucous membranes, IgG provides long-term defense, and IgM is the body’s first response to infection. Doctors use this blood test to diagnose, monitor, and manage immune-related conditions and overall immune health.

The Cytomegalovirus (CMV) IgG Antibody Test detects IgG antibodies to CMV, indicating past infection or immunity. This blood test helps determine prior exposure, assess immune status in pregnancy, transplant patients, or immunocompromised individuals, and guide risk evaluation. A positive result shows past CMV infection, while results are used with IgM testing to distinguish recent vs. past infection.

The IgG Subclasses Panel measures four IgG antibody subclasses (IgG1, IgG2, IgG3, IgG4) to assess immune system function. Abnormal levels may indicate primary immunodeficiency, recurrent infections, autoimmune disease, or allergic conditions. Doctors order this test for patients with chronic sinus, lung, or ear infections or suspected immune imbalance. Results provide key insight into antibody response, guiding diagnosis, treatment, and long-term immune monitoring.

The Cytomegalovirus (CMV) IgG IgM Antibodies Test detects both recent and past infection with CMV, a common herpesvirus. IgM indicates recent or active infection, while IgG shows past exposure and possible immunity. Doctors order this test for pregnant women, immunocompromised patients, or those with unexplained fever or fatigue. Results help diagnose CMV, guide treatment, and assess risk of complications such as congenital infection or organ damage.