Haemophilus influenzae B Antibody, IgG

Sunquest Code:HIBAB  
Epic Code:LAB3529Epic Name:H Iinfluenzae B Antibody IGG
Methodology:multiplex bead assay
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-2 days.

This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.5 mL
Container:Red or gold (gel) (Red (no gel))
Collection Instructions:Pre and 30 days post vaccination samples should be submitted together for testing. Post sample should be drawn 30 days after immunization and must be received within 60 days of pre-sample.
Causes for Rejection:Severe lipemia; hemolysis. Plasma or other body fluids.

Processing and Shipping

Specimen Processing:Separate serum from cells ASAP. Centrifuge and aliquot 1 mL, 0.15 mL minimum. Store in refrigerator. Label clearly as "pre-vaccine" or "post-vaccine".
Shipping Instructions:Ship at refrigerated temperature.
Stability:Stability: After separation from cells: 48 hours at room temperature; 2 weeks refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:50542


Reference Range:

Less than 1.0 ug/mL

Antibody level not protective

1.0 ug/mL or greater

Antibody detected; suggestive of protection




Responder status is determined according to the ratio of post-vaccination concentration to pre-vaccination concentration of Haemophilus influenza b antibody, IgG as follows:

1.        If the post-vaccination concentration is less than 3.0 µg/mL, the patient is considered a nonresponder.

2.        If the post-vaccination concentration is greater than or equal to 3.0 µg/mL, a patient with a ratio of greater than or equal to 4 is a good responder, a ratio of 2-4 is a weak responder, and a ratio of less than 2 is considered a nonresponder.



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