PROPRIETARY INFORMATION
CONFIDENTIAL MATERIAL
Not for Customer Distribution
Assays/Reagents
AEROSET
®
System Troubleshooting Guide
87
94816-107—November 2004
When a manual dilution is performed for the
IgA and IgM assays, what value should be
entered for the sample dilution?
Enter the manual dilution factor only. The
system automatically adjusts for use of a
standard sample dilution.
Example:
a manual 1:4 dilution is prepared
and tested using the standard sample dilution
(1:5). Enter
4
for the manual dilution; the
system automatically multiplies the measured
concentration by 20 (manual dilution ×
standard sample dilution) to determine the
result.
Why are the linear low and LOQ different
values?
• LOQ is the lowest analyte concentration at
which %CV = 20.
• Some Specific Proteins assays become
increasingly inaccurate as analyte
concentrations drop below the lowest
calibrator and approach the LOQ. For this
reason, the linear low limits for these assays
are based on accuracy by recovery studies,
not LOQ studies.
When running the IgA or IgM assay, and an
LH Result Error Code occurs, what should the
customer do?
The sample should be diluted and rerun. An
automated dilution can be performed using
Dil 2.
When running the IgA or IgM assay, and an
LL Result Error Code occurs, what should the
customer do?
The sample should be rerun undiluted. An
automated dilution can be performed using
Dil 1.
Frequently Asked Questions (FAQ) (Continued)
Question
Response
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