Ulta Lab Tests

Lactoferrin, Qualitative, Stool

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Also known as: Lactoferrin Qualitative Stool

Lactoferrin, Stool

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The Lactoferrin, Qualitative, Stool test contains 1 test with 1 biomarker .

Brief Description: The Qualitative Lactoferrin Stool test is a diagnostic tool that examines a stool sample for the presence of lactoferrin, an iron-binding protein found predominantly in white blood cells called neutrophils. Elevated levels of lactoferrin in the stool can indicate the presence of inflammation in the intestines.

Collection Method: Stool Collection

Specimen Type: Stool

Test Preparation: No preparation required

When and Why a Qualitative Lactoferrin Stool Test May Be Ordered

A healthcare provider may order a Qualitative Lactoferrin Stool test in the following circumstances:

  1. Differential Diagnosis: To help differentiate between inflammatory bowel diseases (such as Crohn's disease or ulcerative colitis) and non-inflammatory bowel disorders (like irritable bowel syndrome).
  2. Symptom Evaluation: For patients presenting with symptoms of gastrointestinal distress such as diarrhea, abdominal pain, or blood in the stool.
  3. Monitoring Disease Activity: In patients with a known inflammatory bowel disease (IBD), the test can be used to monitor disease activity or to check for potential relapses.

What the Qualitative Lactoferrin Stool Test Checks For

The test checks for the presence of lactoferrin in the stool. A positive result indicates that there's inflammation in the intestines, which suggests an inflammatory bowel disease (IBD) or another inflammatory condition of the gut. A negative result is more suggestive of non-inflammatory conditions.

Additional Lab Tests Ordered Alongside the Qualitative Lactoferrin Stool Test

When a Qualitative Lactoferrin Stool test is ordered, it's often part of a broader evaluation of gastrointestinal disorders. Here are some tests commonly ordered alongside it:

  1. Calprotectin Stool Test:

    • Purpose: To measure calprotectin, another marker of inflammation in the intestines.
    • Why Is It Ordered: Like lactoferrin, calprotectin can help in diagnosing and monitoring IBD and differentiating IBD from irritable bowel syndrome (IBS).

  2. Complete Blood Count (CBC):

    • Purpose: To evaluate overall blood health, including red and white blood cells, and platelets.
    • Why Is It Ordered: To check for anemia, which can be a complication of IBD, and for signs of infection or inflammation.

  3. C-Reactive Protein (CRP) or Erythrocyte Sedimentation Rate (ESR):

    • Purpose: To measure markers of inflammation in the body.
    • Why Is It Ordered: To assess systemic inflammation, which can support the diagnosis of IBD.

  4. Fecal Occult Blood Test (FOBT) or Fecal Immunochemical Test (FIT):

    • Purpose: To check for the presence of hidden (occult) blood in the stool.
    • Why Is It Ordered: To screen for gastrointestinal bleeding, which can occur in IBD and other gastrointestinal disorders.

  5. Serological Tests for Autoimmune Markers:

    • Purpose: To detect antibodies often associated with IBD, such as anti-Saccharomyces cerevisiae antibodies (ASCA) and perinuclear anti-neutrophil cytoplasmic antibodies (pANCA).
    • Why Is It Ordered: To assist in the diagnosis and differentiation between Crohn’s disease and ulcerative colitis.

  6. Comprehensive Metabolic Panel - CMP:

    • Purpose: To assess liver and kidney function, electrolytes, protein levels, and other metabolic parameters.
    • Why Is It Ordered: To evaluate the overall health status and to check for complications related to IBD, such as liver disease or malnutrition.

These tests, when ordered alongside a Qualitative Lactoferrin Stool test, provide a comprehensive evaluation of the gastrointestinal system and help in diagnosing and managing conditions like IBD. They are crucial for distinguishing between inflammatory and non-inflammatory gastrointestinal disorders, assessing disease severity, and guiding treatment decisions. The specific combination of tests will depend on the individual’s symptoms, clinical history, and suspected underlying condition.

Conditions or Diseases Requiring a Qualitative Lactoferrin Stool Test

The primary conditions or diseases for which a lactoferrin stool test might be ordered include:

  • Inflammatory Bowel Diseases (IBD): Such as Crohn's disease or ulcerative colitis.
  • Infections: Some gastrointestinal infections can cause inflammation, leading to elevated lactoferrin levels.
  • Other Inflammatory Conditions: Less commonly, other forms of gastrointestinal inflammation might be identified through this test.

Usage of Qualitative Lactoferrin Stool Test Results by Health Care Providers

The presence of lactoferrin in the stool is indicative of neutrophils in the intestines, suggesting inflammation. A positive result can provide strong evidence in favor of an inflammatory bowel disease (IBD) diagnosis. Conversely, a negative result can help rule out IBD and point towards irritable bowel syndrome (IBS) or another non-inflammatory condition.

However, lactoferrin is just one marker, and results should be interpreted in conjunction with other clinical and laboratory findings. Based on the outcome, healthcare providers may decide on further tests, start a treatment regimen, or provide specific recommendations for managing the diagnosed condition.

Most Common Questions About the Lactoferrin, Qualitative, Stool test:

Understanding the Basics

What is the primary purpose of the Qualitative Lactoferrin Stool test?

The Qualitative Lactoferrin Stool test is designed to detect lactoferrin in the stool, a protein predominantly found in neutrophil white blood cells. Elevated levels of lactoferrin in stool samples can indicate inflammation in the intestines, such as that seen with inflammatory bowel diseases (IBD) like Crohn's disease and ulcerative colitis. The test helps differentiate between inflammatory and non-inflammatory causes of diarrhea.

Why is lactoferrin used as a marker for inflammation in the intestines?

Lactoferrin is a robust marker for inflammation because it is stable in fecal matter, allowing it to be detected even several days after being passed in the stool. When there's inflammation in the intestines, white blood cells, including neutrophils, migrate to the inflamed area. As these cells break down, they release lactoferrin, which then gets passed in the stool, making it a reliable indicator of intestinal inflammation.

Medical Implications and Applications

When would a physician recommend the Qualitative Lactoferrin Stool test?

A physician might recommend the Qualitative Lactoferrin Stool test if a patient presents symptoms consistent with inflammatory bowel disease, such as chronic diarrhea, abdominal pain, weight loss, and fatigue. The test can help determine if the symptoms are due to an inflammatory process or other non-inflammatory conditions like irritable bowel syndrome (IBS). It can also be used to monitor the severity of inflammation or the efficacy of treatment in known IBD patients.

Can the Qualitative Lactoferrin Stool test replace colonoscopy or other imaging studies for IBD diagnosis?

No, the Qualitative Lactoferrin Stool test cannot replace colonoscopy or other imaging studies for the diagnosis of IBD. While the test can indicate the presence of inflammation in the intestines, it doesn't provide information about its location, extent, or specific cause. A colonoscopy, on the other hand, allows direct visualization of the intestinal lining and the opportunity to take biopsies, which are crucial for an accurate IBD diagnosis.

General Knowledge and Considerations

How does the Qualitative Lactoferrin Stool test differ from the Quantitative Lactoferrin Stool test?

The Qualitative Lactoferrin Stool test provides a positive or negative result, indicating the presence or absence of lactoferrin in the stool. In contrast, the Quantitative Lactoferrin Stool test measures the actual amount of lactoferrin in the stool and provides a numerical result. The quantitative test can give a more detailed insight into the degree of inflammation, while the qualitative test simply confirms its presence or absence.

Are there conditions other than IBD that can elevate lactoferrin levels in the stool?

Yes, while elevated lactoferrin levels in the stool are commonly associated with IBD, other conditions can also increase lactoferrin. These include infectious colitis, ischemic colitis, colorectal cancer, and certain medications. Hence, while the test is specific for inflammation, it's not specific to the cause of the inflammation.

Test Interpretation

If the Qualitative Lactoferrin Stool test comes back positive, what are the next steps?

A positive Qualitative Lactoferrin Stool test indicates the presence of inflammation in the intestines. If IBD is suspected, a physician will typically recommend further diagnostic tests, like a colonoscopy, to evaluate the extent and location of inflammation and to obtain biopsies. The biopsies will help differentiate between various types of IBD and other causes of inflammation. The treatment plan will be determined based on the findings of these additional tests.

We advise having your results reviewed by a licensed medical healthcare professional for proper interpretation of your results.

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