Dr. Izabella Wentz, PharmD

Thyroid Pharmacist

Recommended Labs

This page is an up-to-date guide of my most common lab recommendations for thyroid function and Root Cause testing. I’ve set up self-order options where possible, to help empower people with the information and tools they need to heal.

While I’m a big proponent of taking charge of one’s own health, please remember that it is always best to work with a skilled practitioner who is knowledgeable about functional testing, to interpret your lab results and customize any treatments to your personal needs.

Adrenals

  • ZRT:
    • Adrenal Stress Profile – This saliva test checks for adrenal imbalances by evaluating one’s adrenal hormones DHEA-S and diurnal cortisol (morning, noon, evening, nighttime). You can order this test through my Rupa Health or MyMedLab channels.
  • Precision Analytical:
    • DUTCH Complete – This urine test looks at sex hormones and their metabolites, including estrogens, androgens, progesterone, and melatonin, as well as the overall diurnal pattern of free cortisol and the total and distribution of cortisol metabolites. You can order this test through my Rupa Health or Direct Labs channels.
    • DUTCH Plus – In addition to everything offered in the DUTCH Complete, this urine and saliva test takes a closer look into adrenal function with the cortisol awakening response (CAR). You can order this test through my Rupa Health or Direct Labs channels.
  • Labrix:

Blood Sugar

  • Ulta Labs:
    • Glucose, Fasting and Postprandial – This panel measures the amount of sugar glucose in your blood (while fasting and after a meal). 
    • Hemoglobin A1C – This blood test checks the levels of hemoglobin with glucose attached, to determine average blood sugar levels.

Food Sensitivities

  • Alletess:
    • 96 Food Panel – This blood spot test checks for IgG (a branch of the immune system that mediates food sensitivities as well as Hashimoto’s) reactions to 96 common foods. You can order this test through my Rupa Health or MyMedLab channels.
    • 184 Food Panel – This blood spot test checks for IgG (a branch of the immune system that mediates food sensitivities as well as Hashimoto’s) reactions to 184 common foods. You can order this test through my Rupa Health or MyMedLab channels.

Gut Health

  • Diagnostic Solutions:
    • GI MAP – This stool sample test provides a report on your gastrointestinal microbiota DNA by detecting pathogens (bacterial, parasitic, and viral), as well as intestinal health biomarkers, that could be disturbing normal microbial balance. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
  • Mosaic Diagnostics (formerly Great Plains):
    • Organic Acids Test (OAT) – This comprehensive urine test measures the metabolism of organic acids, which gives insight into metabolic and gut health markers, including intestinal yeast and bacteria overgrowths, toxin accumulation, and nutrient deficiencies. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • Comprehensive Stool Analysis – This test measures key markers of digestion, absorption, and intestinal function, including a comprehensive bacteriology and yeast culture to detect beneficial, imbalanced, and dysbiotic flora. It also includes antimicrobial susceptibility testing to help determine the best treatment for you. You can order this test through my Rupa Health or MyMedLab channels.
  • Genova Diagnostics:
    • GI Effects Comprehensive Profile (Three Day Collection) with H. pylori Add-on – This stool sample test uses DNA analysis to go beyond the standard parameters for identifying gastrointestinal disorders, assessing your digestive function, intestinal inflammation, and intestinal microbiome to help identify issues with your gut health. You can order this test through my Rupa Health or Direct Labs channels. Note: This test includes Pancreatic Elastase as part of the standard markers. If ordered through my Rupa channel an H. pylori add-on is automatically included in your test panel.
      • Pancreatic Elastase – This stool sample test measures levels of this pancreatic enzyme. A deficiency in pancreatic elastase can lead to fat malabsorption.
    • 3 Hour SIBO Lactulose – This breath test checks levels of bacteria in the small intestines. Small Intestinal Bacterial Overgrowth (SIBO) can lead to intestinal permeability and contribute to digestive symptoms. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • Organix Dysbiosis Profile – This urine test that can help identify issues with your body’s metabolic pathways. It looks at nutrient status, organic acids, and other cellular metabolic processes. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • GI Effects Comprehensive Profile – The GI Effects Comprehensive Profile   You will collect samples over three days. You can order this test through my Rupa Health or Direct Labs channels.
  • Vibrant Wellness:
    • Gut Zoomer 3.0 Complete – This comprehensive test analyzes over 300 microorganisms in your large intestine. It can help identify imbalances in your gut microbiome, which can lead to many health issues, such as gastrointestinal symptoms, skin conditions, autoimmune disorders, and more.
  • DHA Laboratory:
    • Histamine (blood draw) – This test measures the amount of histamine in your body. Histamine is a chemical that is released by your immune system in response to certain triggers.
  • Doctor’s Data:
    • Comprehensive Stool Analysis – This test measures markers of digestion, absorption, and inflammation and looks for bacteria and other infectious pathogens. The test also includes antimicrobial susceptibility testing to help determine the best treatment for you. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.

Infections

  • Ulta Labs:
    • TP Root Cause Infections Panel – This blood panel that tests for common viral triggers in Hashimoto’s, including Lyme disease, herpes, Epstein-Barr Virus (EBV), cytomegalovirus (CMV), coxsackie B, Bartonella, and Babesia microti.
    • TP Root Cause Epstein-Barr Panel – This blood panel provides a comprehensive look at markers for Epstein-Barr Virus (EBV), a common viral trigger in Hashimoto’s.
      • EBV-VCA IgG and IgM (viral capsid antigen) – IgG positive means you’ve had or currently have the infection; IgM positive means the infection has been reactivated.
      • EBV-EBNA IgG (nuclear antigen) – A positive test result is usually associated with past infection.
      • EBV-EA-D IgG (early antigen) – Positive EA IgG may mean you have an active or reactivated infection.
  • Igenix:
    • Lyme Disease Test – This blood panel tests for Borreliosis/Lyme disease, as well as co-infection(s) with other tick-borne illnesses.
  • MicrobiologyDX:
    • MARCoNs – This nasal swab test checks for Multiple Antibiotic Resistant Coagulase Negative Staphylococcus (MARCoNS) and other bacterial and fungal infections in the sinuses, as well as biofilms that can create resistance to treatments.
  • Realtime Laboratories:
    • Molecular Fungal Testing – This urine test checks for mold metabolites, to determine if various fungi have taken up residence in your body. 

Nutrient Depletions

  • Ulta Labs:
    • Root Cause Nutrition Panel  – This blood panel checks one’s B12, ferritin, vitamin D, CMP and CBC levels.
      • B12 – A nutrient often lacking in Hashimoto’s, that can result in neuropathy, fatigue or problems with digestion.
      • Ferritin – Iron storage protein, which when deficient, can lead to symptoms like hair loss, fatigue, and poor thyroid function.
      • Vitamin D – An important nutrient for immune system balance. Hashimoto’s patients often have very low vitamin D ranges, and most of my clients who have gotten into remission have optimal levels of this nutrient.
      • CMP (Complete Metabolic Panel) and CBC (Complete Blood Count) – These panels reveal your electrolyte levels, as well as how your cells are doing, how the liver and kidneys are functioning, and whether you are at risk for anemia.
    • MTHFR – This blood test identifies MTHFR (Methylenetetrahydrofolate Reductase) gene variations, which are common in those with Hashimoto’s and can contribute to a number of issues, including a buildup of toxins, as well as nutrient deficiencies.
    • Homocysteine – This blood test checks for elevated homocysteine levels, which are common with MTHFR gene variations. Homocysteine can also tell us the level of inflammation in our bodies, as well as indicate a deficiency in B vitamins.
  • 23andme:
    • The 23andme saliva test kit assesses your genetic profile. You can then upload your test results to geneticgenie.org, which will then tell you if you have specific genetic variations, such as MTHFR.
  • Genova:
  • Spectracell:
    • Micronutrient Panel – This comprehensive blood test checks one’s levels of micronutrients, such as thiamine and magnesium.

Thyroid Function

  • Ulta Labs:
    • TP Root Cause Thyroid Panel #1 – This is a comprehensive blood panel for thyroid function that checks Free T3, Free T4, TSH, TPOAb, TgAb, and Reverse T3 levels.
      • Free T3 and Free T4 – These tests measure the levels of active thyroid hormone circulating in the body.
      • TSH (Thyroid Stimulating Hormone) – This is a pituitary hormone that responds to low/high amounts of circulating thyroid hormone.
      • Thyroid peroxidase antibodies (TPO antibodies) and thyroglobulin antibodies (TG antibodies) – These tests measure levels of thyroid antibodies, which are markers of autoimmune hypothyroidism.
      • Reverse T3 – This test measures how much free active T3 is able to bind at thyroid receptors. RT3 is produced in stressful situations and binds to thyroid receptors, but turns them off instead of activating them.
    • TP Root Cause Thyroid Panel #2 – This is a blood panel for Free T3, Free T4, TSH, TPOAb, and TgAb.
    • TP Basic Thyroid Panel – This blood panel checks for Free T3, Free T4, and TSH levels.

Toxins

  • Ulta Labs:
    • Alkaline Phosphatase (ALP) – This blood test measures levels of the ALP protein. ALP is found in all body tissues, but higher amounts are found in the liver, bile ducts, and bone. Low levels may indicate copper toxicity and/or zinc deficiency.
  • Melisa Diagnostics:
  • Doctor’s Data:
    • Hair Toxic Element Exposure – This hair follicle test measures levels of 31 toxic metals, including aluminum, arsenic, copper, lead, mercury, and nickel. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • Urine Fluoride – 24 hr – This test measures the amount of fluoride in your urine. Fluoride is a mineral found in drinking water, tea, toothpaste, and many prescription drugs. Too much fluoride can be toxic and can cause a variety of health problems, including dental fluorosis, osteomalacia, ligament calcification, hypocalcemia, arrhythmias, neurotoxicity, headaches, vertigo, thyroid dysfunction, and anemia. You can order this test through my Rupa Health or MyMedLab channels.
  • Cell Science Systems:
    • 21/20 Molds ALCAT Panel – This blood test measures changes in size and volume of white blood cells in response to molds, to determine which molds are reactive in your body. You can order this test through my Rupa Health or Direct Labs channels.
  • Realtime Laboratories:
    • EMMA – This Environmental Mold & Mycotoxin Assessment (EMMA) measures circulating IgE and IgG antibodies and one’s sensitization to a wide variety of commonly encountered molds.
    • Total Mycotoxin Panel – This panel helps identify the presence of mycotoxins in your body. Mycotoxins are toxic substances produced by certain types of fungi. This test looks for 16 different types of mycotoxins, including Aflatoxins, Ochratoxins, and Macrocyclic Trichothecenes. You can order this test through my Rupa Health or Direct Labs channels.
  • Mosaic Diagnostics (formerly Great Plains):
    • MycoTOX Profile – This comprehensive test screens for 11 different mycotoxins from 40 species of mold, in one urine sample. It uses advanced mass spectrometry (MS/MS) to detect lower levels of fungal toxins, and is helpful in ensuring that detoxification therapies have been successful. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • Glyphosate – Urine – This test measures the amount of glyphosate in your urine to determine glyphosate exposure. Glyphosate is a toxic chemical found in many herbicides, including Roundup™. You can order this test through my Rupa Health, Direct Labs, or MyMedLab channels.
    • Metals Hair Test – This noninvasive test requires only a small sample of your hair. It checks for any imbalances in the levels of essential and toxic elements in your body to help identify any potential issues with your metabolism. You can order this test through my Rupa Health or MyMedLab channels.
  • Vibrant Wellness:
    • Mycotoxins – This test profile helps identify the presence of mycotoxins in your body. Mycotoxins are toxic substances produced by certain types of fungi. This test looks for 31 of the most common mycotoxins to which humans are exposed.
    • Total Tox-Burden – This test panel contains the Environmental Toxins, Mycotoxins, and Heavy Metals tests from Vibrant Wellness. The Environmental Toxins profile screens for the presence of 39 toxic substances in your body. The Mycotoxins profile helps identify the presence of mycotoxins, toxic substances produced by certain types of fungi, in your body. The Heavy Metals profile identifies if you have been exposed to toxic levels of heavy metals.
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