GI Health
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September 5, 2023

Top Labs To Run Bi-Annually On Your Chronically Constipated Patients

Written By
Dr. Chil Khakham MBA, NMD
Medically Reviewed by
Updated On
January 14, 2025

Many of us have experienced having a difficult bowel movement before in our lives. Imagine having that chronically. Well, that is the case with up to 80% of the world's population. Chronic constipation is a common digestive problem impacting many people's lives. However, with a focus on discovering the underlying causes combined with a comprehensive care approach, this chronic condition may be managed more effectively. Regular testing using functional medicine labs can help in this process. Clinicians often use these specialty labs to explore potential underlying factors that may contribute to health issues, aiming to help their patients improve their quality of life and overall health. 

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What is Constipation?

Constipation is a digestive tract condition that affects bowel movements. It can make it difficult to pass a stool or cause people to have infrequent stools or a mix of both for people with constipation. The troublesome bowel movements may also accompany discomfort and stiffness. From a medical perspective, characteristics of constipation also include dry and hard stool, not having a bowel movement more than three times per week, and not having a complete bowel movement. It's significant to mention that there is no ideal definition for constipation, making history and a physical exam essential in the diagnostic process.

What Are The Common Causes and Challenges of Chronic Constipation?

The challenge with chronic constipation is that the primary cause is considered an idiopathic (unknown) condition, and there is no ideal definition currently. Most of the definitions are interpreted using self-reported criteria.

However, medically, the pathogenesis of chronic constipation is multifactorial and from secondary causes such as digestive mobility, endocrine imbalances, pelvic floor dysfunction, autoimmunity, disorders of the nervous system, medications, and other gastrointestinal (GI) disorders like IBS. There are also lifestyle and environmental factors that are linked with chronic constipation. These influences include a lack of exercise or movement, food sensitivities, diet, and water intake. A genetic predisposition also increases the risk of this condition.

What is The Role of Lab Tests in Managing Chronic Constipation?

The role of lab testing is to help identify potential underlying factors that may contribute to constipation, which can guide interventions to improve symptoms. Labs also play a crucial role in pinpointing the many secondary causes to help guide interventions to improve symptoms and to help manage constipation for patients. Retesting can provide insights into how well the interventions are working so proper adjustments can be made to support the health outcomes for those experiencing chronic constipation.

Top Labs for Bi-Annual Testing in Chronic Constipation Patients

These are the top labs that may be considered for patients with chronic constipation:

Comprehensive Blood Tests for Chronic Constipation Patients

Examining a complete blood count (CBC) and comprehensive metabolic panel (CMP) can offer valuable information about nutritional deficiencies, inflammation, and electrolyte imbalances when testing for constipation. A CBC can assess for conditions such as anemia involving iron or B12 deficiency and general overall health status, including inflammation. At the same time, CMP can provide information on electrolyte imbalances, such as hypokalemia or hypercalcemia, associated with constipation. These labs can provide a baseline for clinicians as abnormal levels can indicate possible secondary causes that may contribute to chronic constipation, providing guidance on further exploration.

Hormonal and Thyroid Function Tests

Understanding the significance of thyroid levels, such as TSH, and other hormones, such as sex hormones and insulin, is crucial for assessing constipation. A thyroid panel can measure thyroid hormones, and a comprehensive hormone test can determine levels of sex hormones. Fluctuations of sex hormones may contribute to constipation. Elevated levels of TSH may indicate hypothyroidism, which can slow the motility of the digestive tract potentially contributing to constipation. A diabetes panel can measure insulin imbalances linked to diabetes. Diabetes can disrupt brain and gut signals, which may result in constipation. The results of these labs can influence strategies to support digestive health and manage chronic constipation.

Evaluating Gut Health: Microbiome Analysis

A thorough microbiome analysis is crucial for digestive health. The microbiome plays a primary role in gut health, and imbalances can lead to GI issues such as constipation. An imbalanced microbiome can lead to GI conditions such as IBS or IBD, in which constipation is a primary symptom of those chronic conditions. The GI Effects Comprehensive Profile provides microbiome sequencing that assesses overall gut health and microbiome function. This test analyzes markers such as fecal calprotectin indicated in GI conditions such as IBS and IBD. The results of this test can provide an in-depth look into gut function and guide personalized recommendations to address any imbalances that may contribute to constipation.

Screening for Celiac Disease and Gluten Sensitivity

Both Celiac Disease and gluten sensitivity have been linked with chronic constipation. These chronic conditions are triggered by consuming wheat gliadin or proteins of wheat that may cause digestive issues for these patients. Celiac and gluten sensitivity screening can be performed from one test, the Celiac Panel. This specialty test includes total IgA, IgA, and IgG antibodies to tTG, endomysial, and deamidated gliadin peptide; and HLA DQ2 and DQ8, all of which are markers for Celiac or gluten sensitivity. This test can provide some insights into constipation for people who may be reactive to gluten or wheat.

Assessing Inflammatory Markers

Chronic constipation highlights the significance of testing C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) in constipation evaluation. Elevated inflammatory markers suggest potential underlying gastrointestinal inflammation often present in digestive disorders such as IBS and IBD. Regular testing of these inflammatory markers can help monitor improvements in those inflammatory conditions and if any other interventions need to be made.

Exploring Food Allergies and Intolerances

Food allergies and intolerances have been shown to contribute to constipation. Therefore, investigating these food reactions through an IgE and IgG food test can be helpful for chronic constipation assessment and management. This complete food reaction test can pinpoint the possible dietary triggers that could exacerbate constipation symptoms, enabling providers to create a personalized nutritional protocol to support digestive health related to any food allergies or intolerances.

Genetic Testing for Chronic Constipation Risk Factors

The CICA Genetics test examines genetic indicators linked to Celiac disease and Crohn's disease, aiding in identifying a patient's genetic susceptibility to these conditions as these conditions are associated with constipation. Knowing if your patients are genetically susceptible to these conditions can enable you to create preventative strategies to support digestive health and manage symptoms, such as constipation.

Additional Labs to Check 

You may also consider these other labs and tests on your patients to assess constipation. These tests include procedures like endoscopy, colonoscopy, and sigmoidoscopy, which provide internal views of the gastrointestinal tract. Further assessments involve defecography for stool expulsion observation, lower GI series using barium for enhanced colon imaging, and advanced techniques like magnetic resonance imaging (MRI) and computed tomography (CT).

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Summary

With a high prevalence of chronic constipation impacting the general population, it's vital that there are diagnostic and supportive options that address this. Being attentive to the underlying factors, often due to secondary causes of constipation, can help us better understand its pathophysiology. This understanding can facilitate clinicians in managing this issue more effectively. Functional labs are a powerful resource to help you and your patients address the symptoms associated with chronic constipation by identifying the factors that may contribute to it.

The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. Consult with a health care practitioner before relying on any information in this article or on this website.

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Lab Tests in This Article

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  2. Henry, K. (2023, June 9). 9 Common Things That May Be Causing Your Constipation. Retrieved August 18, 2023, from Rupa Health website: https://www.rupahealth.com/post/a-functional-medicine-approach-to-treating-constipation
  3. Sweetnich, J. (2023, March 2). 4 Medical Conditions That Can Cause Constipation. Retrieved August 18, 2023, from Rupa Health website: https://www.rupahealth.com/post/4-medical-conditions-that-can-cause-constipation
  4. Diaz S, Bittar K, Mendez MD. Constipation. [Updated 2023 Jan 31]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK513291/
  5. Henry, K. (2023, March 2). IBS vs IBD: Know The Symptoms. Retrieved August 18, 2023, from Rupa Health website: https://www.rupahealth.com/post/ibs-vs-ibd-know-the-symptoms
  6. ‌Cloyd, J. (2023, June 12). A Functional Medicine Celiac Disease Protocol: Specialty Testing, Nutrition, and Supplements. Retrieved August 18, 2023, from Rupa Health website: https://www.rupahealth.com/post/a-functional-medicine-celiac-disease-protocol-diagnosis-nutrition-and-supplements
  7. Sadeghi, A., Shahrokh, S., & Zali, M. R. (2015). An unusual cause of constipation in a patient without any underlying disorders. Gastroenterology and hepatology from bed to bench, 8(2), 167–170.
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