Approximately 95% of IGF-1 and IGF-II are bound to IGFBP-3, which makes this protein the major carrier of the insulin-like growth factors in circulation. The function of the binding protein is to extend the half-life of the growth factors in the circulation.

The fasting insulin test is a blood test that measures the level of insulin in your blood after you have fasted (not eaten or drunk anything except water) for at least 8 hours. Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. The fasting insulin test is often used to help diagnose conditions such as insulin resistance, prediabetes, and type 2 diabetes. It may also be ordered to monitor the effectiveness of treatment for these conditions. The test is usually done in the morning, after an overnight fast. The test results will be reported in units of insulin per liter of blood (U/L). It is important to note that the interpretation of a fasting insulin test may vary depending on the individual's medical history and other factors. A healthcare provider should be consulted to interpret the test results correctly.

The Cardio IQ® Insulin Resistance Score (IR), which uses fasting insulin and C-peptide measurements to estimate a person's likelihood of having insulin resistance. It eliminates the need for multiple samples and reduces the chance of errors that can occur with some other tests.

Having a high score (indicating a greater probability of insulin resistance) was linked to an increased risk of developing type 2 diabetes, even after accounting for other risk factors. 

An IR score of <33 suggests that an individual has normal insulin sensitivity.
A score of 33 to 66 suggests that an individual has >4-fold greater odds of having IR compared with an individual with a score <33 .
A score >66 suggests that an individual has >15-fold greater odds of having IR compared to an individual with a score

Fasting Required for 10-12 hours. Water only.

Discounted Labs’ basic adrenal insufficiency panel includes cortisol, ACTH, and DHEA as a starting point. Depending on lab test results from this panel, physicians may choose to do an ACTH stimulation test, renin, potassium, and sodium. Imaging studies like a CT scan of the adrenal glands may also be considered to check for adrenal growths. In order to check for Addison's Disease, the auto-immune type of primary adrenal insufficiency, labs should be drawn to check 21-hydroxylase 

This panel contains:

• Fasting Insulin
• Comprehensive Metabolic Panel (Includes Glucose)

Glucose and insulin can be used to calculate HOMA-IR (Homeostatic Model Assessment of Insulin Resistance)

Comprehensive and All-Inclusive Lab Test Panel for clients of The Wellness By Design Project.  The panel includes:  Testosterone Free with Total, Estrogens Total, Estrone, Estradiol, DHEA-S, Progesterone, Pregnenolone, Dihydrotestosterone (DHT), FSH/LH, Cortisol, Prolactin, TSH, Free T3, Free T4, Reverse T3, Anti TPO, AntiTG, C-reactive protein (high sensitivity), Homocysteine, Apolipoprotein B, Insulin-like Growth Factor 1 (IGF-1), Insulin, Sex Hormone Binding Globulin (SHBG), Vitamin D 25-hydroxy, Complete Metabolic Panel, Gamma Glutamyl Transferase (GGT), Lipid Profile, Complete Blood Count (CBC), Hemoglobin A1C (HbA1C), Magnesium (serum), Phosphorus (serum), LDH, Uric Acid, Iron Serum, Total Iron Binding Capacity (TIBC), Iron Saturation, Ferritin, and Fibrinogen activity.

A single fasting growth hormone (GH) level is of limited value. The secretion of GH is episodic and pulsatile. GH has a half-life of 20 to 25 minutes. Testing for growth hormone deficiency or excess is best done as part of a dynamic test involving specific stimuli (see the online Endocrine Appendices: Growth Hormone Stimulation and Growth Hormone Suppression). Insulin-like growth factor-1 can also be useful in assessing growth hormone status.

Patients with diabetes may get a C-peptide test as a means of distinguishing type 1 diabetes from type 2 diabetes or Maturity onset diabetes of the young (MODY). Measuring C-peptide can help to determine how much of their own natural insulin a person is producing as C-peptide is secreted in equimolar amounts to insulin. C-peptide levels are measured instead of insulin levels because C-peptide can assess a person's own insulin secretion even if they receive insulin injections, and because the liver metabolizes a large and variable amount of insulin secreted into the portal vein but does not metabolize C-peptide, meaning blood C-peptide may be a better measure of portal insulin secretion than insulin itself.

This test for adrenal insufficiency includes 4 measurements of your salivary Cortisol level during one day. Cortisol, also known as the "stress hormone" can be either too high or too low which may be a sign of adrenal distress.

This PCOS lab test panel includes: Lipid Panel, CBC, CMP, Prolactin, C-Peptide,TSH, Free T3, Fee T4, Sex Hormone binding Globulin, DHEA Sulfate, Estrogen, FSH,Insulin Fasting, A1c, LH, Progesterone, 17-OH Progesterone,Testosterone, Total (LC/MS) and Free (EquilibriumvDialysis), and Vitamin D.

Polycystic literally means "many cysts." In medical terms, it usually refers to a condition called polycystic ovary syndrome (PCOS). PCOS is a hormonal disorder commonly seen in women of childbearing age. The condition is characterized by the presence of multiple fluid-filled cysts in the ovaries. PCOS can cause symptoms like irregular periods, weight gain, acne, and excessive hair growth. Women with PCOS may also experience infertility, diabetes, and heart disease later in life. The exact cause of PCOS is not known, but genetics and insulin resistance are considered contributing factors. PCOS is diagnosed based on symptoms, physical examination, and blood tests. 

This test measures Zinc levels in red blood cells (RBC). Red blood cell (RBC) analysis is an invaluable method for assessing insufficiency or excess of elements that have important functions within cells or on blood cell membranes. It may be more accurate than testing Zinc in blood serum.

The glucose tolerance test is a medical test in which glucose is given and blood samples taken afterward to determine how quickly it is cleared from the blood. The test is usually used to test for diabetes, insulin resistance, impaired beta cell function, and sometimes reactive hypoglycemia and acromegaly, or rarer disorders of carbohydrate metabolism. In the most commonly performed version of the test, an oral glucose tolerance test (OGTT), a standard dose of glucose is ingested by mouth and glucose blood levels are checked right after ingestion and then two hours later. 

This diabetes panel includes important tests usually prescribed for anyone living with Type 1 or Type 2 diabetes. It includes A1c, CMP, Urinialysis, Insulin, and Glucose Tolerance Test (GTT).

Insulin-like Growth Factor 1, also known as IGF-1, is used as a biomarker for blood levels of human growth hormone. It is a hormone produced by the liver and other tissues which affects growth-promoting activities and glucose metabolism. The blood level of IGF-1 appears to fluctuate over 24 hours and is found to be related to growth hormone secretion.

This test measures the amount of dihydrotestosterone (DHT) in the blood.  Low DHT has been associated with low libido and high DHT has been linked to acne, hair loss and benign prostatic inflammation in a minority of men.

Blood typing is used to determine an individual's blood group, to establish whether a person is blood group A, B, AB, or O and whether he or she is Rh positive or Rh negative.

The Cardio IQ® Report provides an in-depth assessment of cardiovascular risks to help physicians recommend the ideal individualized treatment option for patient to minimize cardiovascular disease.

The report is simple, yet comprehensive. It is color-coded to display progressive risk values versus goal using “optimal,” “moderate,” and “high-risk” categories and grouped by functional categories.

Cardio IQ Advanced Lipid Panel The Cardio IQ Advanced Lipid Panel includes:Total Cholesterol, Triglycerides, HDL, LDL and Cholesterol/HDL ratio, LDL Particle Number, LDL Peak Size, LDL Pattern, HDL Large, LDL Small, LDL Medium, Apolipoprotein B, Lipoprotein (a). Fasting is not required prior to collection of a lipid panel. Results for this test take 2 weeks to receive.

The A1c test works by measuring the hemoglobin A1c level. Hemoglobin is stored in the red blood cells. When glucose levels are high, the sugar starts to combine with the hemoglobin. It takes the body 8 to 12 weeks to bring hemoglobin A1c levels back to normal. Therefore, if hemoglobin A1c levels are high, that means that there has been a high level of glucose in the blood over the last 2 to 3 months.

Includes liver and kidney function, glucose and electrolytes

Vitamin D is essential for bone health and many metabolic processes. The body derives it from sunlight and food sources. Many people do not get enough sunlight or do not consume enough vitamin D rich foods. This test is important to determine if you need vitamin D supplementation or if your current supplementation is effective.

The tests are usually ordered for patients prior to surgery to ensure normal clotting ability.  The PT and PTT Blood Tests are useful in the diagnosis of excessive, unexplained bleeding in patients who are not taking blood-thinning medications. These bleeding disorders include conditions such as nosebleeds, bruising, heavy menstrual periods, blood in the stool and/or urine, and bleeding gums, among others,

ApoB Blood Test has been reported to be a powerful indicator of Coronary Artery Disease (CAD). In some patients with CAD, APO B is elevated even in the presence of normal LDL cholesterol. Instead of non-HDL-C levels, ApoB levels may be used to check how well lipid treatment is working. Non-HDL-C is the total cholesterol concentration minus the amount of HDL. A healthcare practitioner may order both an lipoprotein a (associated with high-density lipoprotein (HDL), the "good" cholesterol) and an apo B to determine an apo B/apo A-I ratio. This ratio is sometimes used as an alternative to a total cholesterol/HDL ratio to evaluate risk for developing CVD.

This is the lowest QuantiFERON Gold test price in the United States. It is also the most accurate TB test you can buy online without a doctor's visit. The price includes the doctor's order. No hidden fees or surprise bills.

This is the gold standard for the IGRA TB test. The 1 Tube QuantiFERON®-TB Gold Plus is an indirect test for M. tuberculosis infection TB (including disease) and is intended for use in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations. This test does not differentiate between latent and active TB. All institutions, the US government, employers, and agencies accept this test.

Pregnenolone is known as the mother hormone. All other steroids including testosterone and estrogen are derived from this important hormone. For this reason, optimal blood levels of pregnenolone are critical for a healthy hormone balance.  This test uses liquid chromatography/mass spectrometry, the most accurate assay for hormones.

Iodine, Serum/Plasma - Iodine is an essential element that is required for thyroid hormone production. The measurement of iodine serves as an index of adequate dietary intake and iodine overload, particularly from iodine-containing drugs.

THIS IS THE MOST AFFORDABLE TESTOSTERONE TEST IN THE U.S. The most accurate way to measure total testosterone is with liquid chromatography/mass spectrometry. This panel also shows free testosterone percent by equilibrium dialysis and free testosterone calculated from percent free T. This test is more accurate for low and high testosterone blood levels (for men who expect high testosterone blood levels over 1,500 ng/dL, women, and children who usually have low T levels). It has no interferences with supplements or anabolics. Note: Results may take 5-7 business days. For a faster turnaround, choose this test instead: Testosterone, Free, Bioavailable and Total (With Lower & Upper Limit) plus SHBG

This high sensitivity CRP test is used along other blood markers to assess a patient's potential risk for cardiovascular disease. To illustrate the difference between CRP and hs-CRP, traditional testing measures CRP (quantitative) within the range of 10 to 1,000 mg/L, whereas hs-CRP values range from 0.5 to 10 mg/L. In simpler terms, hs-CRP measures trace amounts of CRP in the blood. Hs-CRP is the analyte of choice for cardiovascular risk assessment

The Anti-Mullerian Hormone ( AMH ) Test is used to assess ovarian function and menopausal status; in the evaluation of polycystic ovary syndrome (PCOS) or to evaluate the effectiveness of ovarian cancer treatment.

SHBG (sex hormone binding globulin) binds to testosterone and estradiol. High SHBG may decrease free testosterone and free estradiol.

This test measures levels of drenocorticotropic hormone (ACTH), which is also called adrenocorticotropin and corticotropin, a hormone made in the anterior pituitary gland that tells the adrenal glands to release cortisol, DHEA, and aldosterone. The ACTH plasma test quantifies the blood's level of ACTH. A patient's blood is drawn for the test and then sent to a lab for examination. The test findings enable the diagnosis of ailments such as Addison's disease, Cushing's syndrome, and adrenal tumors

 Progesterone is a female hormone important for the regulation of ovulation and menstruation. It is also present in men in smaller concentrations. Progesterone is a steroid hormone that plays numerous roles within the human body. It is crucial to the production of sex hormones and corticosteroids, as well as playing a role as a neuro-steroid (brain function). 

A Magnesium RBC test can provide an earlier indicator of magnesium deficiency that a standard magnesium blood test. When levels are low, the body will pull magnesium from the cells to keep blood levels normal. In this case, a magnesium blood test may show normal levels while a magnesium RBC test will give a more accurate result.

This comprehensive panel includes key vitamins and minerals that affect quality of life and survival. Test included are: Vitamin D, Vitamin B-12, Folate (Folic Acid), Magnesium in Red Blood Cells, and Zinc in Red Blood Cells.

This 18 test anemia panel includes all tests needed to diagnose the degree and cause of anemia including a CBC panel (red blood cells, hemoglobin, etc), Ferritin, Iron, Total Iron Binding Capacity, Folate, and Vitamin B-12

This is a simple bodybuilder test panel for those who do not require Cystatin-C or GGT tests.  The panel includes:

• Complete Blood Count (Immune Cells, Red Blood Cells, and Hematocrit)
• Complete Metabolic Panel (Blood sugar, electrolytes, kidney and liver function)
• Lipids (LDL, HDL, and Triglycerides)
• Testosterone, Total LC/MS and Free Testosterone by Equilibrium Dialysis
• Ultrasensitve Estradiol (Only Test Accurate in Men)

This panel includes CBC (Complete Blood Count) with differential, CMP (Comprehensive Metabolic Panel), and Lipid Panel (LDL, HDL, Triglycerides). There are a total of 30 tests included in this panel for a very low price.

This panel includes hormones that have been implicated in gynecomastia by several studies. Gynecomastia is a benign enlargement of the male breast resulting from a growth of the glandular tissue of the breast. Since it causes anxiety, psychosocial discomfort and fear of breast cancer, early diagnostic evaluation is important, and patients usually seek medical attention. Causes include hormone imbalance and genetic predisposition.

The most complete of all blood test panels for men that include: Total and Free Testosterone, Ultra Sensitive Estradiol, IGF-1, Prolactin, DHT, DHEA-S, PSA, SHBG, Lipids, CBC, CMP, and Thyroid Function (TSH, Free T3, Free T4).

ED Panel Includes Main Hormones Involved with Erectile Function: 

• Prolactin
• Total Testosterone (LC/MS)
• Free Testosterone (Equilibrium Ultrafiltration)
• Estradiol, Ultra Sensitive
• DHT
• TSH
• Free T3
• Free T4

The serum iron test measures the amount of iron in your blood. The total iron-binding capacity (TIBC) test looks at how well the iron moves through your body.

This panel includes main blood test variables monitored by many clinics that treat men with low testosterone. This panel is for men who are already on testosterone replacement therapy (TRT) and who want to monitor their main blood tests. Fasting is required for CMP.

The panel includes:

 - Total and free testosterone (LC/MS assay.  No upper limit restriction)

- Sex hormone-binding globulin

- Estradiol (ultrasensitive- LC/MS assay)

- CBC (includes hematocrit, and immune cells)

- CMP (includes glucose, liver and kidney function). Fasting is required.

- Lipids (LDL and HDL cholesterol and triglycerides)

This panel includes: Total and Free Testosterone (LC/MS), Luteinizing Hormone (LH), and Follicle Stimulating Hormone (FSH) at substantial savings that buying each test separately.

The pre-op (surgery) blood test includes the three test panels (CBC, CMP, and Prothrombin Time Test) most commonly ordered before a person has surgery. Pre-operative testing is usually done during the few days before the surgery. This panel lets your surgeon know what to be aware of in case of complications during surgery.

This osteoporosis panel includes:

• Serum total calcium, albumin (to calculate albumin adjusted calcium) and phosphorus as part of a CMP panel to detect conditions associated with hypercalcemia such as primary hyperparathyroidism or hypocalcemia and consequent secondary hyperparathyroidism causing bone loss
• Serum creatinine and estimated glomerular filtration rate (GFR) as part of the CMP panel are useful to detect renal failure which can affect bone health. 
• Serum alkaline phosphatase (ALP) as part of a CMP panel. ALP measurement is useful to detect conditions including Paget's disease, metastatic bone disease and osteomalacia, etc.
• Vitamin D nutrition should be determined by measuring serum 25-hydroxy vitamin D [25(OH)D]. Although there is controversy about the optimum level of 25(OH)D for bone health; while 50 nmol/L is considered acceptable
• Parathyroid Hormone (PTH) measurement would be required if serum calcium is abnormal, to help investigate the cause of the calcium abnormality.
• Ultra-sensitive Estradiol. Low estradiol in men and women has been linked to bone loss.
• Phosphorus. An increased phosphorus with decreased calcium suggests either hypoparathyroidism or renal disease. A decreased phosphorus and an increased calcium suggests hyperparathyroidism or sarcoidosis. When both calcium and phosphorus are decreased diagnostic considerations include malabsorption, vitamin D deficiency and renal tubular acidosis. Increased phosphorus and normal or increased calcium suggests Milk-alkali syndrome or hypervitaminosis D.

Protein, Gloublin and Albumin - The major proteins seen in the serum are albumin and globulin-the latter being primarily alpha 1 and alpha 2 globulin, beta globulin and gamma globulin. Albumin accounts for more than 50% of the total serum proteins. The albumin to globulin (A/G) ratio has been used as an index of disease state, however, it is not a specific marker for disease because it does not indicate which specific proteins are altered. The normal A/G ratio is 0.8-2.0. The A/G ratio can be decreased in response to a low albumin or to elevated globulins. Total globulins may be increased in some chronic inflammatory diseases (TB, syphilis) multiple myeloma, collagen disease, and rheumatoid arthritis.  Decreased levels are seen in hepatic dysfunction, renal disease and various neoplasms.

The causes of fatigue are multifactorial and could involve imbalances in several hormones. This panel includes most hormones and variables involved in the diagnosis and treatment of fatigue. Ordering this panel provides substantial cost savings when compared to ordering each test separately. The panel is useful for men and women. TESTS INCLUDED IN THIS PANEL: TOTAL AND FREE TESTOSTERONE, THYROID FUNCTION: TSH, Free T3, Free T4, Thyroid Antibodies, HEMOGLOBIN A1c, Complete Blood Count (CBC) Test (Includes white, red cells and platelets), Comprehensive Metabolic Panel (CMP), IRON, TIBC (Total Iron Binding Capacity), FERRITIN, ADRENAL FUNCTION: Cortisol and DHEA-S

This hormone panel for men on testosterone replacement therapy (TRT) contains upstream and downstream hormones to testosterone.  TRT has been shown to decrease upstream hormones like pregnenolone and progesterone, and slightly decrease DHEA. Downstream hormone metabolites like ultrasensitive estradiol and DHT are also included.  Lastly, prolactin is added since high prolactin can decrease sexual function.  No LH and FSH were included since TRT shuts them down.

This popular and cost-effective panel includes main blood test variables monitored by many clinics that treat men with low testosterone. This panel is for men who are already on testosterone replacement therapy (TRT) and who want to monitor their main blood tests. You save substantial amounts of money by ordering these tests together rather than one at a time. The panel includes: Total and free testosterone (LC/MS assay. No upper limit restriction), Sex hormone binding globulin (SHBG), Estradiol (sensitive- LC/MS assay), CBC (includes glucose, hematocrit and immune cells), CMP (includes liver and kidney function, eGFR), Lipids (LDL and HDL cholesterol and triglycerides) 

Here is a list of 14 carefully selected lab tests and panels that are essential in maintaining proper health while improving body composition and strength: Hematocrit, Lipid panel (LDL, HDL, triglycerides), Cystatin C kidney test, eGFR kidney test, GGT liver test, Total Testosterone (LC/MS), Free Testosterone (Equilibrium Ultrafiltration), Ultrasensitive Estradiol, Prolactin, DHT test (LC/MS), IGF-1 test (LC/MS), and ferritin. Fasting is required.

The adrenal gland produces a hormone known as dehydroepiandrosterone (DHEA). It is also made in the brain. DHEA leads to the production of androgens and estrogens (male and female sex hormones). DHEA levels in the body begin to decrease after age 30. Lower DHEA levels are found in people with hormonal disorders, HIV/AIDS, Alzheimer's disease, heart disease, depression, diabetes, inflammation, immune disorders, and osteoporosis. Corticosteroids, birth control taken by mouth, and agents that treat psychiatric disorders may reduce DHEA levels.

Cortisol (hydrocortisone) is the most prominent glucocorticosteroid, and it is essential for the maintenance of several body functions. The most important physiological effects of cortisol are that it raises blood sugar levels (enhances gluconeogenesis, or breaks down glucose) and lowers inflammation and the immune system.