Explore our database of over 4000 laboratory markers.

Search and Understand 4000+ Biomarkers

Mucus

GI360 stool profile, Doctor's Data

Reference range:   Negative, Positive

The presence of mucus in the stool may be due to prolonged irritation to the intestinal mucosa and may be secondary to a proliferation of gastrointestinal enteropathogens such as bacteria, yeast, or parasites. It can also be associated with an inflammatory bowel condition. Mucus is also secreted by the intestinal mucosa in response to parasympathetic excitability such as spastic constipation, mucus colitis, neoplasm of the rectum, or villous adenoma of the colon. A positive mucus result requires treatment of the cause of inflammation and possibly anti-inflammatory therapy. Microbial analysis, including PCR and culture along with microscopic studies of the stool are useful in the detection of dysbiotic bacteria, viruses, yeast, or parasites. Localized abscesses and inflammatory disorders should also be ruled out.

LEARN MORE

Mucus

Stool

Full GI Panel, Parasitology Center, Inc. (PCI)

Reference range:   0 (No Presence), 1 (Low Presence), 2 (Moderate Presence), 3 (High Presence), 4 (Heavy Presence)

LEARN MORE

Mucus

Urine

Urinalysis

Reference range:   Rare, 1+

Other names: microscopic urine analysis, microscopic examination of urine, urine test, urine analysis, UA

Mucus in the urine is usually a common finding, as mucus is normally produced throughout the urinary tract to line it and protect it from can be a sign of a urinary or intestinal abnormality. However, excessive amounts of mucus in the urine or other changes to urine consistency or color.

The presence of some mucus filaments in the urine is normal and usually does not require treatment. However, if other abnormalities in the urine are noted, or if you have other symptoms, the doctor may recommended medications, depending on the underlying cause of the mucus. 

A mild to moderate amount of mucus that appears thin and clear ir a normal finding. Urine tests that detect small amounts of mucus with no other abnormalities also does not require any medical intervention. However, copious amounts of mucus, or mucus that is thick, cloudy or pus-like may be a sign of infection or another condition. If you notice these symptoms, you should consult a gynecologist, urologist or family doctor for assessment and treatment as deemed necessary. 

LEARN MORE

Mugwort Weed IgE

Serum

Allergen Panel

Optimal range:   0 - 0.34 kUA/L

LEARN MORE

Mumps Abs, IgG

Immune System

Reference range:   Immune >10.9, Equivocal 9 - 10.9, Negative <9.0

The mumps virus belongs to the Paramyxoviridae family, which also encompasses parainfluenza virus serotypes 1-4, measles, respiratory syncytial virus, and metapneumovirus. Mumps is highly contagious, primarily transmitted through inhaling infected respiratory droplets or secretions. After an incubation period of around two weeks, symptoms typically manifest suddenly, including low-grade fever, headache, and malaise.

LEARN MORE

Murine typhus IgG by IFA

Infectious Disease Profile

Reference range:   Non-reactive, Reactive

Murine typhus is a disease transmitted by fleas. Endemic typhus, flea-borne typhus, and shop fever are other names used for this disease. It is caused by the bacterium, Rickettsia typhi, and possibly Rickettsia felis, found in infected fleas and their feces.

The Murine typhus IgG by IFA (Indirect Fluorescent Antibody) marker is a specific and sensitive serological test used to diagnose Murine typhus. This test is designed to detect Immunoglobulin G (IgG) antibodies in the patient's blood that are specific to R. typhi. IgG antibodies are typically produced in response to an infection several weeks after initial exposure and can persist in the bloodstream for a long time, often for the individual's lifetime.

LEARN MORE

Muscle fibers

GI360 stool profile, Doctor's Data

Reference range:   Not Detected, Rare, Detected

Muscle fibers in the stool are an indicator of incomplete digestion. Bloating, flatulence, feelings of “fullness” may be associated with increase in muscle fibers.

The presence of muscle fibers in the stool is an indicator of incomplete digestion. This may be due to a number of factors including excessive meat intake and insufficient mastication. Other factors may include insufficient hydrochloric acid secretion within the stomach and/or insufficient output of pancreatic enzymes. Bloating and flatulence often accommodate hypochlorhydria and insufficient pancreatic enzyme output.

LEARN MORE

Mushroom, raw + cooked

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.1 - 1.6 ELISA Index

Elevated antibody levels can be clinically significant — while the antibodies themselves don’t destroy anything, they do trigger an inflammatory response that can cause significant destruction of tissue and resulting symptoms. This response is not necessarily dependent on antibody levels. However, an equivocal result may mean you are just beginning to exhibit an immune reaction, so this is an important time to take measures to support the body in damping immune reactivity.

LEARN MORE

MuSK Abs, Serum

Myasthenia Gravis Profile, LabCorp

Optimal range:   0 - 1 U/mL

What Is the MuSK Antibodies Test?

The MuSK Abs, Serum test detects antibodies against Muscle-Specific Kinase (MuSK) in your blood. These antibodies are associated with a type of autoimmune myasthenia gravis (MG)—a condition that causes muscle weakness due to a breakdown in communication between nerves and muscles.

MuSK is a protein that plays a key role in forming and maintaining the connection between nerve endings and muscle fibers. When the immune system creates antibodies that attack MuSK, it can lead to impaired nerve-muscle signaling and muscle fatigue.

Why Is This Test Important?

This test is especially helpful in diagnosing seronegative myasthenia gravis—cases where patients have MG symptoms but test negative for acetylcholine receptor (AChR) antibodies. MuSK antibodies are found in about 5–8% of MG patients, particularly in those with:

  • Facial, throat, and respiratory muscle weakness

  • Rapid symptom progression

  • Less eye-related symptoms compared to AChR-positive MG

LEARN MORE

Mussel, IgG

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

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

LEARN MORE

Mustard Seed

Array 10 - Multiple Food Immune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.4 - 1.5 ELISA Index

LEARN MORE

Mutated Citrullinated Vimentin (MCV) Ab

Quest Diagnostics, Quest Diagnostics

Optimal range:   0 - 20 U/mL

Mutated citrullinated vimentin (MCV) antibody is a specific type of autoantibody that has gained attention in the context of rheumatology, particularly in the diagnosis and management of rheumatoid arthritis (RA). Citrullination is a post-translational modification of proteins, which is a normal process in cell death and differentiation.

LEARN MORE

MXD #

Serum

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   0 - 0.9 x10E3/uL

In a complete blood count (CBC) the MXD # refers to the combined count of mixed white blood cells which includes monocytes, eosinophils and basophils. This helps to understand the relative and absolute numbers of these less common white blood cells which can be important in diagnosing various conditions.

→ Monocytes: These cells fight off bacteria, viruses and fungi. They also remove dead or damaged tissues and regulate immune responses.

→ Eosinophils: These cells are involved in parasitic infections and allergic reactions and asthma.

Basophils: These cells are involved in inflammatory responses and allergic reactions.

LEARN MORE

MXD %

Serum

Complete Blood Count Results: How to Interpret a CBC – A Comprehensive Guide

Optimal range:   0 - 12 %

In a complete blood count (CBC) the MXD # refers to the combined count of mixed white blood cells which includes monocytes, eosinophils and basophils. This helps to understand the relative and absolute numbers of these less common white blood cells which can be important in diagnosing various conditions.

→ Monocytes: These cells fight off bacteria, viruses and fungi. They also remove dead or damaged tissues and regulate immune responses.

→ Eosinophils: These cells are involved in parasitic infections and allergic reactions and asthma.

Basophils: These cells are involved in inflammatory responses and allergic reactions.

LEARN MORE

Mycobacterium avium

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

Optimal range:   0.2 - 1.5 ELISA Index

Mycobacterium avium (M. avium) is a gram-positive, slow-growing bacteria with high guanine and cytosine content. It is present mainly in cattle and transmitted to humans by drinking unpasteurized animal milk. M. avium, M. bovis and M. tuberculosis are the most common human acquired mycobacteria.

LEARN MORE

Mycobacterium tuberculosis (avium)

Stool

Optimal range:   0 - 4999 Units

LEARN MORE

Mycophenolic Acid

Total Tox-Burden, Vibrant Wellness

Optimal range:   0 - 3.6 ng/g

Mycophenolic Acid is an antifungal, antibacterial, and antiviral mycotoxin acid. It is produced by the Penicillium fungus. 

Mycophenolic Acid is an immunosuppressant which inhibits the proliferation of B and T lymphocytes. Mycophenolic Acid exposure can increase the risk of opportunistic infections such as clostridia and Candida. 

Mycophenolic Acid is associated with miscarriage and congenital malformations when the woman is exposed in pregnancy.

LEARN MORE

Mycophenolic Acid

MycoTOX Profile (Mold Exposure), Mosaic Diagnostics

Optimal range:   0 - 37.4 ng/g creatinine

Mycophenolic Acid is an antifungal, antibacterial, and antiviral mycotoxin acid. It is produced by the Penicillium fungus. 

Mycophenolic Acid is an immunosuppressant which inhibits the proliferation of B and T lymphocytes. Mycophenolic Acid exposure can increase the risk of opportunistic infections such as clostridia and Candida. 

Mycophenolic Acid is associated with miscarriage and congenital malformations when the woman is exposed in pregnancy.

LEARN MORE

Mycophenolic Acid (MPA)

MycoTOX Profile (Mold Exposure), Mosaic Diagnostics

Optimal range:   0 - 37.4 ng/g creatinine

Mycophenolic Acid is an antifungal, antibacterial, and antiviral mycotoxin acid. It is produced by the Penicillium fungus. 

Mycophenolic Acid is an immunosuppressant which inhibits the proliferation of B and T lymphocytes. Mycophenolic Acid exposure can increase the risk of opportunistic infections such as clostridia and Candida. 

Mycophenolic Acid is associated with miscarriage and congenital malformations when the woman is exposed in pregnancy.

LEARN MORE

Mycoplasma hominis

GI360 stool profile, Doctor's Data

Reference range:   -3, -2, -2, 0, +1, +2, +3

Mycoplasma hominis is from the Tenericutes phylum.

Tenericutes are cell wall-less bacteria that do not synthesize precursors of peptidoglycan. Tenericutes consist of four main clades designated as the Acholeplasma, Spiroplasma, Pneumoniae and Hominis clusters. Tenericutes are typically parasites or commensals of eukaryotic hosts.

Mycoplasma hominis is a fastidious bacterium, which usually colonizes the lower urogenital tract and may cause systemic infections in neonates and genital infections in adults. It can also be the cause of serious extra-genital infections, mainly in immunosuppressed or predisposed subjects.

LEARN MORE
Showing results 4741 - 4760 of 6919