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Reducing Substances

Reducing Substances

The Red Blood Cell (RBC) Zinc test is a laboratory assessment designed to measure zinc concentration within red blood cells, offering a stable indicator of zinc status in the body. Unlike serum zinc levels, which can fluctuate due to dietary intake, stress, or inflammation, RBC zinc levels provide a more consistent reflection of long-term zinc stores. This test is crucial for diagnosing and monitoring conditions related to zinc deficiency or excess. Zinc deficiency can impair immune function, delay wound healing, and reduce enzyme activity, often linked to conditions like hyperthyroidism, obesity, and metabolic syndrome. Conversely, high RBC zinc levels may indicate zinc toxicity, potentially leading to gastrointestinal issues and severe organ damage. The test involves collecting a blood sample, separating red blood cells, and using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) for precise measurement. Proper specimen handling is essential to ensure accurate results, aiding healthcare providers in managing zinc-related disorders effectively.

Price of test:£63

The lowest price from the last 30 days: £63

Awaiting result:

One day

Collect material:

Blood

Prepare:

Learn more

Purpose of the test

The RBC zinc test is crucial for assessing long-term zinc status, offering a stable indicator less influenced by acute changes. It aids in diagnosing and monitoring zinc-related conditions.

- Zinc Deficiency: Low RBC zinc levels can signal issues like impaired immune function and metabolic dysfunctions. Conditions such as hyperthyroidism and obesity often show decreased levels.

- Zinc Excess: High RBC zinc levels may indicate toxicity, leading to adverse health effects.

- Procedure: Blood is collected, red cells separated, and analyzed using ICP-MS.

- Interpretation: Results guide diagnosis and management of zinc-related disorders.

Who Should Get Tested

The reducing substances test is essential for diagnosing the cause of diarrhea, particularly in distinguishing between osmotic and non-osmotic types. It identifies unabsorbed carbohydrates in the stool, aiding in the diagnosis of:

- Disaccharidase Deficiencies: Lack of enzymes to break down disaccharides, like lactase deficiency, leading to symptoms such as frothy stools and discomfort.

- Monosaccharide Malabsorption: Inability to absorb single sugars, causing gastrointestinal issues.

- Other Conditions: Differentiates osmotic diarrhea from viral or parasitic causes.

The test involves collecting a stool sample, using Benedict's Copper Reduction Reaction for analysis, and interpreting results to guide treatment.

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 RBC zinc test is crucial for diagnosing zinc-related conditions. Here's a brief overview:

- Zinc Deficiency: Low RBC zinc levels may indicate issues like impaired immune function and metabolic disorders.
- Zinc Excess: High levels suggest toxicity, potentially causing severe health problems.
- Test Procedure: Blood is collected, processed, and analyzed using ICP-MS for precise zinc measurement.
- Reference Values: Typically range from 741 to 1314 μg/dL, varying by lab.
- Interpretation: Results should be considered alongside clinical symptoms for accurate diagnosis.

Price of test:£63

The lowest price from the last 30 days: £63

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