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Test Code IGE Immunoglobulin E (IgE)

Important Note

This test may be affected by biotin interference. Patients on high dose biotin (5mg/day or more) should not have samples drawn until at least 24 hours after the last biotin administration.

Specimen Type

Plasma

Container/Tube

Li-Heparin  Mint Green Top

Offsite Collection Instructions

1. Collect sample following standard collection methods
2. Within 2 hours of collection the sample must be spun and
aliquoted
3. Transport refrigerated (2 – 8˚C)

Turnaround Time

4 hours

Test Includes

N/A

Preferred Volume

0.5 mL

Test Usage

Aid in the diagnosis of allergic diseases. IgE is of importance
in allergies, elevated IgE concentrations can be found in patients
with allergic diseases such as hay fever, atopic bronchitis and
dermatitis.

Critical Results

N/A

Test Limitations

Normal IgE values do not mean that an allergic disease can be
ruled out. For this reason the quantitative determination of serum
IgE concentrations for clinical differentiation between atopic and
non-atopic diseases is only useful in combination with other
clinical findings.

Elevated serum IgE concentrations can also occur in non-allergic
diseases, e.g. bronchopulmonary aspergillosis, Wiskott-Aldrich
syndrome, hyper-IgE syndrome, IgE myeloma, and parasitic
infections.

Fee Code

43058

Synonyms

N/A

Specimen Minimum Volume

0.2 mL

DAY(S) AND TIME(S) PERFORMED

24 hours, 7 days a week including holidays.

STAT DAY(S) AND TIME(S) PERFORMED

N/A

CPT

82785

Method Name

Electrochemiluminescence Immunoassay (ECLIA)

Reference Values

Adult:   < 100 IU/mL

Reject Due To

Whole blood/unspun samples greater than 6 hours will be
rejected.

STAT Turnaround Time

N/A

UCMC Collection Instructions

1. Collect sample following standard collection methods
2. Within 2 hours of collection the sample must be received in
Laboratory Service Center
3. Transport room temperature (15 – 25˚C)

Additional Information

N/A

Included in Additional codes

N/A

Coverage Information

N/A

Stability: Room Temp

n/a

Stability: Refrigerated

7 days

Stability: Frozen

6 months