Mumps serological

Sample type:

serum

Uses:

Diagnosis of mumps virus infection

Determination of postimmunization immune response of individuals to the mumps vaccine

Documentation of previous infection with mumps virus in an individual with no previous record of immunization to mumps virus

Precaution :

Patient Preparation:

no test preparation is needed.

sample collection:

A blood sample drawn from a vein for testing

Interfering factor :

1. Hemolysed, icteric, lipemic or microbially contaminated sera or plasma are not recommended for testing.

2. All positive IgM results must be interpreted cautiously as some false-positive results or heterotypical responses of the IgM have been seen in the serum of pregnant women or in patients with an acute infection caused by cytomegalovirus, herpes simplex virus, measles, rubella, or parvovirus.

Pre - analytical errors:

Contaminated, heat-inactivated, grossly hemolyzed, lipemic, or severely icteric specimens.

Corrective action :

Proper sample collection and handling

Post analytical errors:

1- Writing wrong name in the report

2- Writing a wrong result in the report

The corrective action

1/Make sure you write the correct name in the report or use codes that contain all patient data .

2/If the report is not delivered to the patient and this error is discovered the correct result must be written, but if the report is delivered to the patient must communicate with him and tell him that an error has occurred and replace with the correct report

Reference ranges:

Mumps IgG antibody :

• 8.9 AU/mL or less: Negative

• 9.0-10.9 AU/mL: Equivocal - Repeat testing in 10-14 days may be helpful.

• 11.0 AU/mL or greater: Positive .

Mumps IgM antibody :

• 0.79 IV or less: Negative

• 0.80-1.20 IV: Equivocal - Borderline levels of IgM antibody to Mumps virus. Repeat testing in 10-14 days may be helpful.

• 1.21 IV or greater: Positive