Lipid Definition Lipids are class of naturally-occurring organic compounds that you may know by their common names: fats and oils. A key characteristic of this group of compounds is that they are not soluble in water.
Ultrasound. 1  normal thyroid gland has an homogenous appearance, the capsule may appear as a thin hyperechoic line. 2  each lobe normally measures 4 length: 4-7 cm. depth: <2 cm. 3  volume (excluding isthmus, unless its thickness is > 3mm) 6 10-15 ml for females. 12-18 ml for males.
the official normal range of tsh followed by many doctors and laboratories until 2002 was from between 0 5 to 5 according to this tsh range a tsh over 5 indicated an under active thyroid or hypothyroidism while a low tsh value below0 5 indicated an overactive thyroid or hyperthyroidismo be more specific normal tsh can range from between 0 3 to 5 for instance a person with a tsh range of 4 5 is considered normal by one physician where as another physician can diagnose it as hypothyroidism and begin with the treatment