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Testosterone Testing

Dihydrotestosterone, (DHT) LC/MS/MS (Quest Diagnostics)

Price: $125.99
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The Dihydrotestosterone (DHT) test measures the level of DHT in the blood. DHT is naturally occurring androgen and aids in the development of the prostate and male gentalia.
DHT is a potent androgen derived from testosterone via 5-alpha-reductase activity. 5-alpha-reductase deficiency results in incompletely virilized males (phenotypic females). This diagnosis is supported by an elevated ratio of testosterone to DHT.

Alternative Names(s): DHT

A significant deviation from the normal range may require further evaluation by your phyisician.

Dihydrotestosterone, LC/MS/MS

Estimated turnaround for results is 7 business days

No fasting required.

Testosterone, Free, Bioavailable and Total, LC/MS/MS (Quest Diagnostics)

Free and weakly bound testosterone (FWBT), also referred to as bioavailable testosterone, is thought to reflect an individual's biologically active, circulating testosterone. Helpful in assessing testicular function in males and managing hirsutism, virilization in females.
This testosterone test will also provide Total Testosterone results when the value is >1500 but <10,000.

Significant deviations from the normal range may require further evaluation by your physician.

Testosterone, Total, LC/MS/MS
Testosterone, Free
Testosterone, Bioavailable
Sex Hormone Binding Globulin (SHBG)
Albumin

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free and Total, LC/MS/MS (Quest Diagnostics)

Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states where the testosterone binding proteins may be altered (obesity, cirrhosis, thyroid disorders).

This testosterone test will also provide results when the total testosterone value is >1500 but <10,000.

Significant deviations from the normal range may require further evaluation by your physician.

Total Testosterone, Free (Dialysis) Testosterone (calculated)

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free, LC/MS/MS (Quest Diagnostics)

Helpful in assessing testicular function in males and managing hirsutism, virilization in females. Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states where the testosterone binding proteins may be altered (obesity, cirrhosis, thyroid disorders)

A significant deviation from the normal range may require further evaluation by your physician.

Testosterone, Free, LC/MS/MS

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone Total LC/MS/MS (Quest Diagnostics)

Testosterone testing is used to evaluate androgen excess or deficiency related to gonadal function, adrenal function, or tumor activity. Testosterone levels may be helpful in men for the diagnosis of hypogonadism, hypopituitarism, Klinefelter syndrome, and impotence (low values). Testosterone levels may be requested in women to investigate the cause of hirsutism, anovulation, amenorrhea, virilization, masculinizing tumors of the ovary, tumors of the adrenal cortices, and congenital adrenal hyperplasia (high values). Testosterone levels in children may be helpful to investigate issues related to puberty and development as well as the aforementioned.

This testosterone test will also provide Total Testosterone results when the value is >1500 but <10,000.

Significant deviations from the normal range may require further evaluation by your physician.

Testosterone, serum.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 5 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Total, Male, IA (MALES ONLY) (Quest Diagnostics)

Testosterone circulates almost entirely bound to transport proteins: Normally less than 1-2% is free. The principal transport protein for testosterone is known as sex hormone binding globulin (SHBG) or testosterone-estradiol binding globulin (TeBG). Testosterone measurements are used to assess erectile dysfunction, infertility, gynecomastia, and osteoporosis and to assess hormone replacement therapy.

This is a Male Only Testosterone test, it cannot be performed on a female. FEMALES needing to order this test from Quest will need to order the 'Testosterone Total LC/MS/MS'.

Use of synthetic steroids, various supplements and/or high doses of biotin may interfere with the accuracy of the standard immunoassay Testosterone Total serum test. If you are taking any of these it is recommended that you order the Testosterone Total LC/MS/MS for testing.

This testosterone test will also provide results when the total testosterone value is >1500 but <3,000. This is a Male Only test, it cannot be ordered by females. If a female orders this panel, the testosterone test will not be included on the requisition or performed at the lab.

Significant deviations from the normal range may require further evaluation by your physician.

Total Testosterone

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Total, Serum (LabCorp)

Testosterone testing is used to evaluate androgen excess or deficiency related to gonadal function, adrenal function, or tumor activity. Testosterone levels may be helpful in men for the diagnosis of hypogonadism, hypopituitarism, Klinefelter syndrome, and impotence (low values). Testosterone levels may be requested in women to investigate the cause of hirsutism, anovulation, amenorrhea, virilization, masculinizing tumors of the ovary, tumors of the adrenal cortices, and congenital adrenal hyperplasia (high values). Testosterone levels in children may be helpful to investigate issues related to puberty and development as well as the aforementioned.

For testosterone measurements in females or expected levels >1500, use of Testosterone, Total, Women, Children, and Hypogonadal Males, LC/MS-MS, which employs liquid chromatography/tandem mass spectrometry (LC/MS-MS), is recommended.

Use of synthetic steroids, various supplements and/or high doses of biotin may interfere with the accuracy of the standard immunoassay Testosterone Total serum test. If you are taking any of these it is recommended that you order the Testosterone, Total, Women, Children, and Hypogonadal Males, LC/MS-MS for testing.

Significant deviations from the normal range may require further evaluation by your physician.

Total Testosterone

Note: If total testosterone results are expected to be >1500 it is best that the Testosterone LC/MS-MS version of this test be ordered. Reporting values that exceed 1500 will now be reported as >1500 for all regions, as this standard operating procedure will now be nationwide.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen. Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Total LC/MS-MS (LabCorp)

This assay provides the sensitivity and specificity required for the assessment of the low testosterone levels found in women, children, adolescents, and hypogonadal men.

A significant deviation from the normal range may require further evaluation by your physician.

Testosterone Total

Note: Actual Total Testosterone levels will be provided with this test, even when levels exceed 1500.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free (Direct), Serum (LabCorp)

Price: $102.99
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Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states where the testosterone binding proteins may be altered (obesity, cirrhosis, thyroid disorders)

A significant deviation from the normal range may require further evaluation by your physician.

Free (Direct)Testosterone (Only) This has a cutoff at >50.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Dihydrotestosterone (DHT) (LabCorp)

Price: $135.99
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The Dihydrotestosterone (DHT) test measures the level of DHT in the blood. DHT is naturally occurring androgen and aids in the development of the prostate and male gentalia.

A significant deviation from the normal range may require further evaluation by your physician.

Dihydrotestosterone (DHT), serum.

Estimated turnaround for results is 10 business days. If confirmation testing is required, the estimated time may be extended.

No fasting required.

Testosterone (Free) , Serum (Equilibrium Ultrafiltration) With Total Testosterone (LabCorp)

Price: $164.99
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Testosterone levels decrease normally with age. This may cause men to have erectile problems or to lose interest in sex. This test will determine the level of free and total testosterone.

Use of synthetic steroids, various supplements and/or high doses of biotin may interfere with the accuracy of the standard immunoassay Testosterone Total serum test. If you are taking any of these it is recommended that you order the Testosterone, Total, Women, Children, and Hypogonadal Males, LC/MS-MS for testing.

Total Testosterone
Free Testosterone
Percent Free Testosterone

Note: If total testosterone levels are greater than the cutoff for this test (>1500), results for free testosterone and/or percent free testosterone may not be provided. If total testosterone results are expected to be >1500 it is best that the LC/MS-MS version of this test be ordered.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen.

Estimated turnaround for results is 5 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free and Weakly Bound (LabCorp)

Price: $164.99
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Free and weakly bound testosterone (FWBT), also referred to as bioavailable testosterone, is thought to reflect an individual's biologically active, circulating testosterone. FWBT includes free testosterone and testosterone that is bound to albumin. FWBT does not include sex hormone binding globulin-bound testosterone. The SHBG-bound fraction is biologically inactive because of the high binding affinity of SHBG for testosterone. The rapid dissociation of "weakly bound" testosterone from albumin results in the availability of essentially all albumin-bound testosterone for steroid-receptor interaction.

Use of synthetic steroids, various supplements and/or high doses of biotin may interfere with the accuracy of the standard immunoassay Testosterone Total serum test. If you are taking any of these it is recommended that you order the Testosterone, Total, Women, Children, and Hypogonadal Males, LC/MS-MS for testing.

A significant deviation from the normal range may require further evaluation by your physician.

Total testosterone,
% Free+Weakly Bound Testosterone,
F+W Bound Testosterone (calculated)

Note: If total testosterone results are expected to be >1500 it is best that the Testosterone LC/MS-MS version of this test be ordered. When total testosterone results are >1500, the F+W Bound component will also report as a greater than value.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free (Direct) With Total Testosterone, LC/MS-MS (LabCorp)

Price: $164.99
Add To Cart Share this panel
Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states in which testosterone-binding proteins may be altered (obesity, cirrhosis, thyroid disorders).

A significant deviation from the normal range may require further evaluation by your physician.

Testosterone Total
Testosterone Free

Note: Actual Total Testosterone levels will be provided with this test if levels exceed 1500. However, >50 is the highest value on the Free (Direct)Testosterone.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free (Direct), Serum With Total Testosterone (LabCorp)

Price: $165.99
Add To Cart Share this panel
Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states where the testosterone binding proteins may be altered (obesity, cirrhosis, thyroid disorders).

Use of synthetic steroids, various supplements and/or high doses of biotin may interfere with the accuracy of the standard immunoassay Testosterone Total serum test. If you are taking any of these it is recommended that you order the Testosterone, Total, Women, Children, and Hypogonadal Males, LC/MS-MS for testing.

A significant deviation from the normal range may require further evaluation by your physician.

Free Testosterone (Direct)
Total Testosterone

Note: If total testosterone results are expected to be >1500 it is best that the Testosterone LC/MS-MS version of this test be ordered. The highest value on the Free (Direct)Testosterone is >50.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen. Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free and Weakly Bound, With Total Testosterone, LC/MS-MS (LabCorp)

Price: $173.99
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Free and weakly bound testosterone (FWBT), also referred to as bioavailable testosterone, is thought to reflect an individual's biologically active, circulating testosterone. FWBT includes free testosterone and testosterone that is bound to albumin. FWBT does not include sex hormone-binding globulin-bound testosterone. The SHBG-bound fraction is biologically inactive because of the high binding affinity of SHBG for testosterone. The rapid dissociation of "weakly bound" testosterone from albumin results in the availability of essentially all albumin-bound testosterone for steroid-receptor interaction.

Testosterone, Free and Weakly Bound, With Total Testosterone, LC/MS-MS

Note: Actual Total Testosterone levels will be provided with this test if levels exceed 1500.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

Testosterone, Free, Equilibrium Ultrafiltration With Total Testosterone, LC/MS-MS (LabCorp)

Price: $186.99
Add To Cart Share this panel
Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states in which the testosterone-binding proteins may be altered (obesity, cirrhosis, thyroid disorders).

A significant deviation from the normal range may require further evaluation by your physician.

Testosterone, Total, LC/MS
Testosterone, Free
% Free testosterone

Note: Actual Total Testosterone levels will be provided with this test if levels exceed 1500.

If using a testosterone cream please be sure you have not rubbed any into the antecubital area of your arm for the last 24 hours as it can give elevated results.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.

What is a Testosterone Test?

A Testosterone test measures levels of the male hormone, also known as androgen, in a patient’s blood. Testosterone plays a vital role in a person’s overall development and development of their sexual characteristics, particularly in men, where it is made in significant quantities by the testicles. Yet, in both women and men, testosterone is also produced by the adrenal glands, as well as in the ovaries by women. Testosterone levels are controlled by the pituitary gland, and when levels become low, the pituitary gland releases luteinizing hormone (LH) to have the testicles produce more testosterone.

Who May Need a Testosterone Test?

Testosterone tests are performed for a number of reasons, yet the most common reasons for taking the test include determining the reason a male is having difficulties with infertility, and also why a male is having issues with their sex drive. Low levels of testosterone can lead to both low sperm counts as well as erectile dysfunction in men. These types of tests are also used to assess whether the hormone is playing a part in the early or late development (puberty) in children, as well as why a woman may be having irregular menstrual periods or developing male features, including the presence of excessive body or facial hair and a deepening voice.

What Should I Expect from My Testosterone Test?

Testosterone tests begin by drawing a sample of blood from a patient, usually early in the morning when levels are at their peak, in order to have it analyzed by the lab. Results from these tests can vary depending on a number of factors, including the sex of the patient, their age, and the level of maturation in an individual. Testosterone levels normally decline during a patient’s 30’s and may be affected by things such as the use of certain medications, chronic illness, and obesity. While normal values vary from lab to lab, many share a common reference range, and should be discussed with your physician after receiving the results of your test.

Questions about online blood testing or how to order a lab test?

Speak with our Wellness Team: (877) 283-7882

 

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