Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

Peak Methane (CH4) Production

Small Intestinal Bacterial Overgrowth (SIBO)

Optimal range:   0 - 2.99 ppm

Peak Methane (CH4) Production is a critical marker in NutriPATH’s 2-Hour SIBO Breath Test, used to detect methane-producing microbes in the small intestine, particularly methanogenic archaea such as Methanobrevibacter smithii. Unlike hydrogen, which is produced by bacteria fermenting carbohydrates, methane is formed when certain archaea consume hydrogen and convert it into methane gas. A methane level of ≥10 parts per million (ppm) at any point during the 2-hour breath test is considered a positive result for methane-dominant SIBO or Intestinal Methanogen Overgrowth (IMO).

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Peanut Agglutinin

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.3 - 1.9 ELISA Index

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Peanut Allergen

Tree Nut Allergen Panel, Quest Diagnostics

Optimal range:   0 - 0.1 kU/L

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Peanut Allergen, Class 0, Specific IgE

Tree Nut Allergen Panel, Quest Diagnostics

Optimal range:   0 - 0.35 kUA/L

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Peanut Butter

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.2 - 1.9 ELISA Index

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Peanut IgE

Serum

Food Allergy Panel, Quest Diagnostics

Optimal range:   0 - 0.35 kU/L

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Peanut Oleosin

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.3 - 1.8 ELISA Index

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Peanut, IgG

240 Food Panel: IgA, IgG, IgG4 (US BioTek), US BioTek

Reference range:   Very Low, Low, Moderate, High, Very High

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Peanut, roasted

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.2 - 1.4 ELISA Index

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Pear

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.2 - 2.6 ELISA Index

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Pecan nut (F201) IgE

Tree Nut Allergen Panel, Quest Diagnostics

Optimal range:   0 - 0.1 kU/L

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Pecan, raw + roasted

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.3 - 1.5 ELISA Index

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Penicillin

The GI – Advanced Profile (US BioTek), US BioTek

Reference range:   Sensitive, Not Tested, Resistant

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Penicillium

Array 12 – Pathogen-Associated Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0 - 1.9 ELISA Index

Penicillium is a genus of fungi, which commonly grows on many foodstuffs such as cocoa beans, coffee beans, cassava flour, cereals, fish, peanuts, dried fruits, wine, poultry eggs and milk.

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Penicillium chrysogen

Allergen Profile, Mold

Optimal range:   0 - 0.1 kU/L

Penicillium Chrysogenum is a widely studied species of Penicillium that is most famous for being a source of penicillin and several other antibiotics.

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Penicillium Chrysogenum/notatum IgG

Serum

Quest Diagnostics, Quest Diagnostics

Optimal range:   0 - 22 mcg/mL

The Penicillium Chrysogenum/Notatum IgG Test provides valuable insights into mold exposure and its potential health impacts. However, results should be interpreted cautiously and in conjunction with clinical symptoms and environmental assessments. This test is one tool among many in diagnosing and managing mold-related health conditions, helping healthcare providers make informed decisions about patient care and environmental safety.

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PENICILLIUM GLABRUM (P. FREQUENTANS) (M209) IGE

Allergy Mold Panel, Complete, Quest Diagnostics

Reference range:   Class 0 (<0.1 kU/L), Class 0/1 (0.10-0.34 kU/L), Class 1 (0.35-0.69 kU/L), Class 2 (0.70-3.49 kU/L), Class 3 (3.50-17.4 kU/L), Class 4 (17.5-49.9 kU/L), Class 5 (50-100 kU/L), Class 6 (>100 kU/L)

Penicillium is a genus of fungi, which commonly grows on many foodstuffs such as cocoa beans, coffee beans, cassava flour, cereals, fish, peanuts, dried fruits, wine, poultry eggs and milk.

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PENICILLIUM NOTATUM (M1) IGE

Allergy Mold Panel, Complete, Quest Diagnostics

Reference range:   Class 0 (<0.1 kU/L), Class 0/1 (0.10-0.34 kU/L), Class 1 (0.35-0.69 kU/L), Class 2 (0.70-3.49 kU/L), Class 3 (3.50-17.4 kU/L), Class 4 (17.5-49.9 kU/L), Class 5 (50-100 kU/L), Class 6 (>100 kU/L)

Penicillium is a genus of fungi, which commonly grows on many foodstuffs such as cocoa beans, coffee beans, cassava flour, cereals, fish, peanuts, dried fruits, wine, poultry eggs and milk.

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Penicillium Toxin (Mycophynolic acid) - IgE

Serum

Serum Antibody Testing for Mycotoxins, MyMycoLab

Optimal range:   0 - 0.15 Units

Penicillium is a genus of fungi, which commonly grows on many foodstuffs such as cocoa beans, coffee beans, cassava flour, cereals, fish, peanuts, dried fruits, wine, poultry eggs and milk.

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Penicillium Toxin (Mycophynolic acid) - IgG

Serum

Serum Antibody Testing for Mycotoxins, MyMycoLab

Optimal range:   0 - 0.15 Units

Penicillium is a genus of fungi, which commonly grows on many foodstuffs such as cocoa beans, coffee beans, cassava flour, cereals, fish, peanuts, dried fruits, wine, poultry eggs and milk.

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