Immunology

<14 = Negative
14-20 = Borderline
>20 = Positive

results between 3 and 19.9 will be tested via IFA test at UoB

Reported only as a comment

A negative result suggests no active immune response to Mycobacterium Tuberculosis. A positive results indicates a response to MTB infection, but does not distinguish between active and latent disease. The test cannot be used to exclude active infection, since false-negative results do occur. It should always be interpreted in the context of other clinial and laboratory features.

Due to biological variations, re-testing borderline results is recommended. Indeterminate results indicate failure of positive or negative controls which may be due to technical or patient-specific factors.  Re-testing recommended.  

Results reported as interpretive comments: Anti CMV immunity NOT detected Anti-CMV immunity detected Result indeterminate for CMV responsiveness

Reference Ranges updated 10/10/2024

Age <70 yrs

Serum free kappa light chain 6.3- 39.0 mg/L

Serum free lambda light chain 5.9- 36.7 mg/L

Free kappa: Free lambda ratio = 0.44 - 2.16

Age >=70 yrs

Serum free kappa light chain 7.0- 55.8 mg/L

Serum free lambda light chain 6.4- 48.0 mg/L

Free kappa: Free lambda ratio = 0.46 - 2.59

DEPENDS ON THE AGE AND IMMUNISATION STATUS

Negative