Saliva testing

Saliva testing is a diagnostic technique that involves laboratory analysis of saliva to identify markers of endocrine, immunologic, inflammatory, infectious, and other types of conditions. Saliva is a useful biological fluid for testing because it contains a variety of substances, including hormones, antibodies, and viral and bacterial antigens.

Overview

Saliva testing is a non-invasive method of testing. It is easy to collect, requires no special training or equipment, and can be done anywhere. The sample can be collected by the patient themselves, making it a convenient method for repeated measurements.

Applications

Saliva testing is used in a variety of fields, including endocrinology, immunology, virology, and pharmacology. It is particularly useful for measuring hormone levels, detecting viral and bacterial infections, and monitoring drug use.

Endocrinology

In endocrinology, saliva testing is used to measure levels of various hormones, including cortisol, DHEA, estradiol, progesterone, and testosterone. These tests can help diagnose and monitor conditions such as adrenal fatigue, PCOS, and menopause.

Immunology

In immunology, saliva testing can be used to detect antibodies that indicate an immune response to a specific pathogen. This can be useful in diagnosing viral and bacterial infections, as well as monitoring immune function in individuals with autoimmune diseases.

Virology

In virology, saliva testing is used to detect viral antigens, such as those associated with HIV, hepatitis, and herpes.

Pharmacology

In pharmacology, saliva testing can be used to monitor drug use, both therapeutic and illicit. This can be useful in drug rehabilitation programs, as well as in monitoring medication levels in patients with chronic illnesses.

Advantages and Limitations

Saliva testing has several advantages over other types of testing. It is non-invasive, easy to collect, and can be done anywhere. However, it also has some limitations. The concentration of substances in saliva can be affected by various factors, including hydration status, time of day, and recent food intake. Therefore, it is important to control for these factors when interpreting saliva test results.

See Also

• Blood testing
• Urine testing
• Stool testing

Saliva testing Resources
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