Department of Buildings requirements. The information included in these Guidelines can be used for the. evaluation of existing porches and decks as well as the design of new. structures. Tables are provided to assist in determining the load. capacity of joists, beams, columns and bolted connections for simple. structural configurations.
The causes of cat hyperthyroidism may include: 1  A high amount of benign cells in the thyroid gland, which is the most common cause of hyperthyroidism in cats. 2  These cells may cluster in small nodules on the thyroid gland; these nodules are known as adenomas.
Other causes of hyperthyroidism can include: 1  Excess iodine. 2  Thyroiditis â inflammation of the thyroid gland (causes T4 and T3 to leak out of the gland) 3  Benign tumors of the thyroid or pituitary gland (causes pressure, hormones leak out) 4  Large amounts of tetraiodothyronine taken through dietary supplements or medication.