When the TSH test reveals abnormal results, a doctor may order the T4 test. It measures the quantity of thyroxine inside blood. There are two types of T4 tests. One that measures the free thyroxine and something that measures the complete thyroxine available. The total thyroxine test is impacted by proteins which can be guaranteed to thyroxine. The free thyroxine test is known as more accurate since it isn't afflicted with protein levels. And apart from showing you the places you really want to check out - those who will not increase the risk for guidebooks - they're going to coach you on about Thai customs, traditions and the way you should conduct yourself when visiting certain establishments. Thai culture differs greatly from your west so it will be important to know and understand how to behave in order not offend anyone. When a woman is pregnant, high amounts of this female hormone are designed by the placenta, beginning throughout the end of her first trimester of being pregnant on and on on until she gives birth to a baby. A pregnant woman's progesterone levels are approximately much higher than it is in the woman who is not pregnant. The third whorl of an flower will be the stamen, the male reproductive part. The stamen is made of the thin vertical thread-like structure called a filament topped using a circular or oblong structure called an anther. The anther produces pollen, which could be the male contribution on the reproduction process in plants. Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials.