Depression

Do you know if you or your loved ones have a mental illness? Do blood tests for depression help? Learn about the lab tests to order to help diagnose and monitor the condition.

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Also Known As: Magnesium Red Bood Cell Test, Mg Test, Mag Test

A Magnesium RBC (Red Blood Cell) test measures the level of magnesium within the red blood cells. It provides a more accurate assessment of magnesium status in the body compared to a standard serum magnesium test, which measures magnesium levels in the blood plasma.


: Blood
Also Known As: MTHFR Factor Test, MTHFR Mutation Test, MTHFR Gene Mutation Test, Methylenetetrahydrofolate Reductase Gene Test, MTHFR Disease Test
The Methylenetetrahydrofolate Reductase (MTHFR) DNA Mutation Analysis test is a genetic test that examines specific mutations in the MTHFR gene. This gene encodes an enzyme called methylenetetrahydrofolate reductase, which plays a critical role in metabolizing folate (a B-vitamin) and converting it into its active form, called 5-methyltetrahydrofolate. This active form is essential for various biochemical reactions, including the conversion of homocysteine to methionine, a process that influences DNA synthesis and methylation. The test is designed to identify genetic variations in the MTHFR gene, which may impact its enzyme function and influence folate metabolism.

: Serum
Also Known As: MMA Test
The Methylmalonic Acid (MMA) test is a medical laboratory analysis that measures the level of methylmalonic acid in the blood or urine. Methylmalonic acid is a substance produced in small amounts during the metabolism of certain amino acids and fats. Elevated levels of MMA may indicate an underlying metabolic disorder.

: Random
The Methylmalonic Acid (MMA) urine test measures the amount of MMA present in the urine. Methylmalonic acid is a substance in the body that is produced when certain proteins are broken down. Under normal circumstances, MMA is then converted into another substance by the action of vitamin B12. If there's a deficiency of vitamin B12, the level of MMA in the body can rise, leading to its increased excretion in the urine.

: Serum
 The QuestAssureD™ for Infants 25-Hydroxyvitamin D Test is a specialized diagnostic procedure designed to accurately measure the levels of 25-Hydroxyvitamin D (the primary form of Vitamin D found in blood) in infants. Due to the unique metabolic and nutritional needs of infants, specialized tests like this are crucial for obtaining accurate results in this demographic.

Also Known As: Rapid Plasma Reagin with Reflex to Titer, Syphilis RPR, Syphilis Titer test
RPR (Rapid Plasma Reagin) with Reflex to Titer, is a blood test primarily used to screen for syphilis, a sexually transmitted infection caused by the bacterium Treponema pallidum. The RPR test is a non-treponemal test, meaning it detects antibodies produced by the body in response to the infection rather than the bacteria itself. If the RPR test result is positive or reactive, the test automatically reflexes to a titer, which quantifies the level of antibodies in the blood. This reflex process helps confirm the presence of syphilis and assess the stage or activity of the infection.

Most Popular
: Serum
Also Known As: Reverse T3 Test, RT3 Test, T3R Test

The Reverse T3 Test measures the level of reverse triiodothyronine (rT3) in the blood, an inactive form of thyroid hormone. It helps evaluate thyroid function, assess metabolism, and investigate symptoms of thyroid imbalance or non-thyroidal illness.


Most Popular
Also Known As: Total T3 Test, Total Triiodothyronine Test, T3 Test, Bound T3

The T3 Total Test measures the total amount of triiodothyronine (T3) in the blood, including both bound and free forms. It helps assess thyroid function and diagnose conditions such as hyperthyroidism and other thyroid disorders.


Most Popular
: Serum
Also Known As: Free T3 Test, Free Triiodothyronine Test, FT3 Test, T3F Test, Unbound T3 Test

The T3 Free Test measures the level of free triiodothyronine (T3) in the blood, the active thyroid hormone that is not bound to proteins. It helps assess thyroid function and diagnose conditions such as hyperthyroidism and other thyroid disorders.


Most Popular
Also Known As: Total T4 Test, Total Thyroxine Test, T4 Test, Bound T4 Test

The T4 Total Test measures the total amount of thyroxine (T4) in the blood, including both bound and free forms. It helps evaluate thyroid function and diagnose conditions like hypothyroidism, hyperthyroidism, and other thyroid disorders.


Most Popular
: Serum
Also Known As: Free T4 Test, Free Thyroxine Test, FT4 Test, T4F Test, Unbound T4 Test

The T4 Free Test measures the level of free thyroxine (T4) in the blood, the active form of thyroid hormone not bound to proteins. It helps evaluate thyroid function and diagnose conditions like hypothyroidism and hyperthyroidism.


: Serum
Also Known As: Bound and Unbound Testosterone, Uncapped Testosterone Test

The Testosterone Free and Total Test measures both total testosterone and the portion not bound to proteins (free testosterone) in the blood. It helps assess hormone balance, diagnose conditions affecting sexual development, fertility, and overall health in men and women.


: Serum
Also Known As: Bound Unbound and Bioavailable Testosterone with SHBG Test, Uncapped Testosterone

The Testosterone Free, Bioavailable, and Total Test measures total testosterone, free testosterone, and bioavailable testosterone, along with sex hormone binding globulin (SHBG) and albumin. It helps assess hormone status, reproductive health, and conditions affecting the endocrine system.


Also Known As: Bound and Unbound Testosterone with SHBG Test, Uncapped Testosterone Test

The Testosterone Free and Total with Sex Hormone Binding Globulin (SHBG) Test measures total testosterone, free testosterone, and SHBG levels. It helps assess hormone balance, reproductive health, sexual function, and conditions affecting the endocrine system in men and women.


: Serum
Also Known As: Total Testostone LCMS Test, Uncapped Testosterone Test

The Testosterone Total Test measures the total amount of testosterone in the blood, including both bound and free forms. It helps assess hormone balance, reproductive health, sexual function, and conditions affecting the endocrine system in men and women.


: Serum
 The TH-1 Thyroid Health panel is a basic yet essential set of tests focused on evaluating the primary aspects of thyroid function. This panel includes assessments for Free T4 and Thyroid Stimulating Hormone (TSH), providing a foundational understanding of thyroid health and activity.

: Serum
 The TH-2 Thyroid Health panel is a comprehensive set of tests designed to evaluate thyroid function more extensively than basic screenings. It includes assessments of both bound and unbound thyroid hormones, providing a detailed picture of thyroid activity and metabolism.

: Serum
 The TH-3 Thyroid Health panel is a comprehensive set of tests designed to provide an in-depth evaluation of thyroid function and autoimmunity. This panel assesses the levels of thyroid hormones, including the active and inactive forms, and checks for antibodies that indicate an autoimmune thyroid disorder.

: Serum
 The TH-4 Thyroid Health panel represents the most comprehensive evaluation in the series, designed to assess thyroid function extensively, including thyroid hormone levels, autoimmunity, and specific markers indicative of autoimmune thyroid diseases. This panel is particularly valuable for diagnosing complex thyroid conditions and monitoring autoimmune thyroid disorders.

: Serum

Also Known As: Thyroid Antibodies Test, TPO and TgAb Test

The Thyroid Peroxidase (TPO) and Thyroglobulin Antibodies Test detects antibodies that target thyroid proteins, helping diagnose autoimmune thyroid diseases such as Hashimoto’s thyroiditis and Graves’ disease, and assess thyroid-related inflammation or dysfunction.


Most Popular
: Serum
Also Known As: Thyroid Stimulating Hormone Test, Thyrotropin Test

The TSH (Thyroid Stimulating Hormone) test measures TSH levels, a pituitary hormone that regulates thyroid function. It helps diagnose and monitor hypothyroidism, hyperthyroidism, and other thyroid disorders. Abnormal levels may indicate hormone imbalances and guide treatment decisions.


Most Popular
: Serum
Also Known As: Thyroid Stimulating Immunoglobulin Test
The Thyroid Stimulating Immunoglobulin (TSI) test is a blood test used to measure the level of TSI in the blood. TSI is an antibody that specifically targets the thyroid-stimulating hormone receptor (TSH receptor) on the surface of thyroid cells. It plays a crucial role in stimulating the thyroid gland to produce thyroid hormones (thyroxine or T4, and triiodothyronine or T3). The TSI test is primarily used to help diagnose and monitor autoimmune thyroid disorders, particularly Graves' disease, which is the most common cause of hyperthyroidism.

: Serum

Most Popular
: Serum
Also Known As: B12 Test, Cobalamin Test

The Vitamin B12 test measures the levels of vitamin B12 in the blood, which is an essential nutrient for various bodily functions. It assesses the concentration of vitamin B12 to evaluate its availability for proper red blood cell production, nervous system function, and DNA synthesis. The test helps diagnose vitamin B12 deficiency or monitor the effectiveness of vitamin B12 supplementation.


Depression afflicts 264 million people across the world.

Amid a pandemic and other traumatic events, mental health is now more important than ever.

You may have down moments, but what if you're not sure if you actually have depression? Or maybe you are certain you are suffering from depression, but don't know why.

Depression can be caused by external factors, but it can also stem from other health issues. Depression blood tests may help you narrow down the cause so you can start working on a solution.

Here is what you need to know about depression and how lab tests for depression can help.

What Is Depression?

At its most simple description, depression causes feelings of sadness. It also causes you to lose interest in people or activities that you previously cared about. Depression is common, but that doesn't take away from the severity of this affliction.

Depression can interfere with personal relationships, work, ... See more