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			== Saliva testing ==
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			File:Saliva test for nitric oxide.jpg\|Saliva test for nitric oxide
			File:Illu quiz hn 02.jpg\|Saliva testing
			File:Cortisol2.svg\|Cortisol
			File:Cortisol-3D-balls.png\|Cortisol 3D balls
			File:P53.png\|P53
			File:Oraquick2.jpg\|Oraquick
			File:EMpylori.jpg\|EMpylori
			File:PDB 1lj7 EBI.jpg\|PDB 1lj7 EBI
			File:Sex Hormone-Binding Globulin.png\|Sex Hormone-Binding Globulin
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'''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]], [[dehydroepiandrosterone|DHEA]], [[estradiol]], [[progesterone]], and [[testosterone]]. These tests can help diagnose and monitor conditions such as [[adrenal fatigue]], [[polycystic ovary syndrome|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 simplex virus|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]]

[[Category:Diagnostic tests]]
[[Category:Endocrinology]]
[[Category:Immunology]]
[[Category:Virology]]
[[Category:Pharmacology]]

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Saliva testing - Revision history

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Prab: CSV import