Cold agglutinins
Cold agglutinins
Antibodies that cause clumping of red blood cells when the blood temperature falls below normal body temperature (98.6°F/37°C).
Mentioned in: Cold Agglutinins Test
Mentioned in
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- acrocyanotic
- agglutinin
- Antibody
- atypical pneumonia
- autoagglutination
- autoantibody
- blood group antibodies
- Blood Groups and Antibodies
- Blood Transfusion Reaction
- CAD
- CAS
- CCAD
- cold agglutination
- cold agglutinin
- cold agglutinin disease
- Cold Agglutinin Titer
- Cold Agglutinins Test
- cold autoagglutinin
- cold hemagglutinin disease
References in periodicals archive
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Laboratory work-up showed a normal complete blood count, a negative antinuclear antibodies (ANA) titer, a negative double-stranded DNA, normal levels of inflammatory markers, and negative cryoglobulins and cold agglutinins. The patient was diagnosed with pernio.
[6] If cold agglutinins were suspected, the sample was collected and immediately incubated at 37[degrees]C and at room temperature for 30 mins.
Then there are those tests that actually benefit from a clotting time spent in an incubator, such as cold agglutinins, and, in fact, some patient tubes for hematology performing CBCs must be warmed before testing, again, due to cold agglutinins.
Finally, although it is possible that monoclonal IgM was undetectable in the serum due to the presence of cold agglutinins or cryoglobulins, however hemolytic anemia was absent and cold agglutinins were undetected.
Cold agglutinins react with human red cells but they differ in the strength of the reaction with different cells.
Erroneous red blood cell parameters due to cold agglutinins were evident as increases in the MCH in 3 cases in which the operator deviated from protocol, and improper mixing of tubes run in manual mode was the likely explanation for 2 errors.
His tests including full blood count, thyroid function tests, antinuclear antibody, cryoglobulin, cryofibrinogen, cold agglutinins, antiphospholipid antibodies and serum protein electrophoresis, which were performed to determine the etiology, were within normal ranges.
Mycoplasma pneumonia antibodies and cold agglutinins were found to be negative.
This should be contrasted with cold agglutinins which cause agglutination of RBCs.
Formation of cold agglutinins is frequently observed during Mycoplasma pneumoniae infections.
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