IgG antibody levels to Haemophilus influenzae are requested as part of an immune deficiency screen for patients with recurrent or opportunistic infections. This test is only available for patients <4 years of age, and should be performed alongside pneumococcal and tetanus toxoid antibodies.
Only pneumococcal and tetanus toxoid antibodies should be tested in patients >4 years of age.
|0.15 mg/L minimum protective level
|1 mg/L optimum protective level|
RST (rust top)
5-10 mL (1 mL serum)
Not currently performed in house; this test is referred to the Department of Immunology, Dudley Road Hospital, Birmingham.