Antibody titer

Alphabetical Test listing

Antibody titer-6272

  
Antibody titer
  
6272
  
LAB6272
  
ABT
  
  • Antibody titer will include antibody identification and appropriate red cell antigen typing(s) as required
  • Each serum technique/panel needed will be charged separately.
  • Other special testing may be required for significant antibody identification and will be performed at an additional charge
  
EDTA whole blood
  

Two (2) Lavender (EDTA), 4mL tubes

  
8 mL EDTA whole blood
  

In certain circumstances, additional blood may be requested to complete testing. If the patient has a known antibody, send 2 - 3 4mL EDTA whole blood tubes for testing.

Lavender:

Immediatley following collection, mix sample by inverting 8 - 10 times to prevent clotting.

Labelling instructions:
Excellian sites:
Tube must be labeled with the patients first and last name and Excellian MRN, date and time of collection and phlebotomist’s A#

Non-Excellian sites:
Tube must be labeled with the patient's first and last name and date of birth, date and time of collection and phlebotomist’s initials.

  

Submit tubes unspun

  

Two (2) Lavender (EDTA), 4 mL tubes

  

Refrigerated - 3 days (96 hours)

  
  • Improper label (unlabeled or mislabeled)
  • Hemolysis
  
AHL - Blood Bank: B
  
Daily
  
1 - 2 days
  

Hemagglutination

  

Negative

If postive:

  • The specificity of the maternal alloantibody will be stated. The titer result is the reciprocal of the highest dilution at which macroscopic agglutination (1+) is observed.
  • If the alloantibody identified is not relevant in hemolytic desease of the newborn, the titer will be canceled.
  • Autoantibodies are not titered.
  

Some maternal IgG alloantibodies to red blood cell antigens will cross the placenta and cause hemolysis of antigen-positive fetal red blood cells. The resulting fetal anemia and hyperbilirubinemia can be harmful or possibly fatal to the fetus/newborn. Titers are performed to assess the potential strength of alloantibody.

  
86886
  
11/30/2001
  
12/27/2023
  
12/21/2023