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Ascariasis Serology

Ascariasis Serology

The Ascariasis serology test is a blood test used to detect antibodies against *Ascaris lumbricoides*, the common roundworm, aiding in the diagnosis and management of ascariasis. This test measures immunoglobulin E (IgE) and immunoglobulin G (IgG) antibodies, which the immune system produces in response to the parasite. It is particularly useful when stool tests are inconclusive, as the eggs of the parasite may not appear in the stool until 40 days post-infection. The test involves collecting a blood sample, separating the serum, and using an immunoenzymatic assay to detect specific antibodies. Elevated antibody levels indicate a current or past infection. While the test is valuable for diagnosis, treatment monitoring, and epidemiological studies, it has limitations, such as potential cross-reactivity with other nematode infections and the need for careful interpretation in the clinical context. The typical turnaround time for results is around five days.

Price of test:£103

The lowest price from the last 30 days: £103

Awaiting result:

One day

Collect material:

Blood

Prepare:

Learn more

Purpose of the test

The Ascariasis serology test is essential for detecting antibodies against *Ascaris lumbricoides*, the common roundworm. It measures IgE and IgG antibodies, offering a comprehensive diagnostic approach. Key steps include:

- Blood Collection: Serum is obtained from a blood sample.
- Antibody Detection: Tests for specific IgE and IgG antibodies.
- Immunoassay Technique: Uses FEIA for detection.
- Result Interpretation: Elevated antibodies suggest infection.

Clinical utilities include diagnosis, treatment monitoring, and epidemiological studies. Limitations involve cross-reactivity and interpretation complexity. Proper preparation ensures accurate results, with a typical turnaround of 5 days.

Who Should Get Tested

The Ascariasis serology test is essential for diagnosing *Ascaris lumbricoides* infections. It detects IgE and IgG antibodies in the blood, offering a comprehensive diagnostic approach. This test is particularly useful when stool tests are inconclusive, as the parasite's eggs may not appear in stool until 40 days post-infection. Key points include:

- Diagnosis: Identifies current or past infections.
- Monitoring: Assesses treatment effectiveness.
- Epidemiology: Aids in population studies.

Despite its utility, the test has limitations like cross-reactivity and interpretation complexity, requiring careful clinical context consideration.

Blood Test Preparation Guidelines

Time of day

It is recommended to schedule your appointment for blood tests in the morning hours between 7:00-10:00.

Fasting

It is recommended to fast for approximately 12 hours before blood sampling. The last meal of the previous day should ideally be consumed around 6:00 p.m. On the day before the test, avoid heavy and fatty meals as well as alcohol.

Stay hydrated

Drinking water prior to testing can help with sample collection.

Other factors

Tests should not be performed after a sleepless night or intense physical activity. It is recommended to avoid exercise and stress immediately before blood collection and to not smoke. A short rest is recommended.

Medications and supplements:

Blood samples should be collected before the morning dose. Some drugs can interfere with test results. Consult with your doctor whether you can delay your dose because of lab tests.

Biotin supplements:

High doses of biotin supplements can affect test results, causing false elevation or reduction. It's recommended to avoid taking biotin for at least 72 hours before blood collection. If you are taking biotin, inform the personnel collecting the blood so that they can provide specific instructions.

Interpreting Test Results

Understanding test results for the Ascariasis serology test involves interpreting the levels of IgE and IgG antibodies detected in the blood. Elevated antibody levels suggest a current or past infection with *A. lumbricoides*. However, results must be considered within the clinical context, as some individuals may have antibodies without significant clinical symptoms. Key points include:

- Elevated IgE/IgG: Indicates possible infection.
- Cross-reactivity: May cause false positives.
- False negatives: Possible in some cases.
- Clinical context: Essential for accurate interpretation.

Price of test:£103

The lowest price from the last 30 days: £103

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