Measurement of Pituitary Production of TSH:
Normally, low levels (less than 5 units) of TSH are sufficient to keep the normal thyroid gland functioning properly. When the thyroid gland becomes inefficient such as in early hypothyroidism, the TSH becomes elevated even though the T4 /FT4 and T3/FT4 may still be within the "normal" range.
This rise in TSH represents the pituitary gland's response to a drop in circulating thyroid hormone; it is usually the first indication of thyroid gland failure. Since TSH is normally low when the thyroid gland is functioning properly, the failure of TSH to rise when circulating thyroid hormones are low is an indication of impaired pituitary function. The new "sensitive" TSH test will show very low levels of TSH when the thyroid is overactive (as a normal response of the pituitary to try to decrease thyroid stimulation). Interpretations of the TSH level depends upon the level of thyroid hormone; therefore, the TSH is usually used in combination with other thyroid tests such as the T4/FT4 and T3/FT3.
- Antibodies
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ImmunoAssays
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Auto-Immunity
- 2-Glycoprotein
- Acetylcholine Receptor
- ANA 10
- ANA 12
- ANA 12 Screen
- ANA 19 Screen
- ANA 25 Screen
- ANA 8
- ANCA
- anti-GAD65
- anti-GAD65
- anti-IA2
- APS
- ASCA
- Cardiolipin
- Celiac IgA
- Celiac IgG
- Connectivitis
- Cytoplasm
- dsDNA
- dsDNA-Ab
- ENA Nucleosome
- ENA6
- Gastritis
- GBM
- Gliadin
- IAA
- Intrinsic Factor
- Liver 10
- Liver 4
- Liver 5
- Liver 7
- Lupus
- Milk Intolerance
- Mitochondria
- Mitochondria 4
- Nucleosome
- Nucleosome/Histones
- Polymyositis/Scleroderma8
- TRAb human
- β2-Glycoprotein
- Biogenic Amines
- Bone Metabolism
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Cancer Markers
- AFP
- Alpha-Fetoprotein (AFP)
- CA 125 (Cancer Associated Antigen 125)
- CA 15-3 (Cancer Associated Antigen 15-3)
- CA 19-9 (Cancer Associated Antigen 19-9)
- CA 242
- Calcitonin (CT)
- Carcino Embryonic Antigen (CEA)
- Chromogranin-A (CgA)
- Free PSA
- Free ß-hCG (Free ß-Human Chorionic Gonadotropin)
- Gastrin
- HE4
- Neuron Specific Enolase (NSE )
- ProGRP
- PSA
- S100
- SCC
- Thyroglobulin (Tg S)
- Cardiovascular & Salt Balance
- Diabetes & Metabolism
- Drug of Abuse
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Fertility
- 17 OH-Progesterone ELISA
- AMNISTRIP
- Androstane Diol Glucuronide (3a-DIOL G)
- Androstenedione (Delta-4)
- Chorionic Gonadotropin (hCG)
- Dehydroepiandrosterone (DHEA )
- Dehydroepiandrosterone-Sulfate (DHEA-S)
- DHEA
- Estradiol, 17b (E2)
- Estriol, Free (Free E3 )
- Estrone (E1)
- Follicle Stimulating Hormone (FSH)
- Free ß-hCG (Free ß-Human Chorionic Gonadotropin)
- Human Chorionic Gonadotropin + beta (hCG+ b)
- Human Placental Lactogen (hPL)
- Luteinizing Hormone (LH)
- Pregnenolone
- Progesterone (PROG)
- Progesterone, 17 a Hydroxy- (17-OH PROG)
- Progesterone, 17 a Hydroxy- (17-OHP)
- Prolactin (PRL)
- Sex Hormone Binding Globulin (SHBG)
- Sperm-Antibody (Sperm-Ab)
- Testosterone (Testo)
- Testosterone, 5 a Dihydro- (DHT)
- Testosterone, Free (Free Testo)
- Total Estrogens
- Gastrointestinal Metabolism
- Growth Factors
- Immunology Markers
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Infectious Diseases
- Chlamydia pneumoniae
- Chlamydia trachomatis
- Cytomegalovirus (CMV)
- Dengue Fever
- Epstein Barr Virus (EBV)
- Fecal Adeno & Rotavirus Antigens
- Fecal Occult Blood (FOB)
- Helicobacter Pylori (Hpylori)
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Herpes Simplex (HSV)
- HIV Ab/Ag Combo Elisa
- HSV Screening
- Malaria
- Measles
- MUMPS
- Mycoplasma
- Rubella (RUB)
- Streptococcus B (STREP-B)
- Syphilis
- Syphillis
- Toxoplasma (TOXO)
- Tuberculosis
- Varicella Zoster
- Zika Virus
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Others
- Thyroid Function
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Urinary Reagents
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Auto-Immunity
- Instruments
- Radioactive Decontaminant Solution
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