Overview

Purpose: The LE cells test was historically used to identify lupus erythematosus, particularly SLE. It involves identifying a specific type of cell that is considered indicative of lupus, although it is less commonly used today due to advances in more specific diagnostic tests.

Indications for Testing:

• Suspicion of systemic lupus erythematosus (SLE) based on symptoms such as joint pain, skin rashes, and fatigue.
• Assessment of disease activity in patients already diagnosed with lupus.

Risk Assessment

Normal Function: In healthy individuals, the LE cells test is not positive. The presence of LE cells in the blood is indicative of an autoimmune process affecting the body.

Increased Risk: The detection of LE cells suggests the presence of lupus erythematosus, which may lead to further diagnostic investigations to confirm SLE. SLE is associated with a range of symptoms and can affect multiple organ systems, including the skin, joints, kidneys, and heart.

Normal Range

Normal Range: The normal range for the LE cells test is:

• Negative: Absence of LE cells in the blood.

Interpretation of Results:

• Positive Result: The presence of LE cells suggests the possibility of SLE or other autoimmune conditions. However, a positive LE cell test is not specific to lupus and can occur in other conditions, so it is not used as a definitive diagnostic tool on its own.
• Negative Result: Absence of LE cells generally indicates that SLE is unlikely, though it does not completely rule out the disease. Other diagnostic tests and clinical evaluations are required for a comprehensive assessment.

Sample Type

Sample Type: The LE cells test typically requires a blood sample:

• Blood Sample: Collected via a standard blood draw from a vein.