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“I understand why I need to take this antithyroid drug,” says Mr. Henderson, who has newly diagnosed hyperthyroidism. “It stops my thyroid gland from making any more thyroid hormones. But why does it take several weeks to have full effects? Don’t we make thyroid hormones every day?”

A 25-year-old woman presents with a complaint of rapid weight loss despite a voracious appetite. Physical examination reveals tachycardia (pulse rate 110 bpm at rest), fine moist skin, a symmetrically enlarged thyroid, mild bilateral quadriceps muscle weakness, and fine tremor. These findings strongly suggest hyperthyroidism. What laboratory tests should be ordered, and what results should be anticipated?

Mrs. Santos has type 2 diabetes. She says, “Please explain to me why losing weight will help my diabetes.” 

A multiolet assembly is a type of surface, flush, or freestanding raceway designed to hold ___ assembled on the job site or at the factory.

___ protection is designed to prevent accidental contact with energized parts.

A(n) ___ conductor may be wrapped with a paper-type material.

A(n) ___ is an unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non-current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.

A voltage of ___ V is not considered a nominal voltage.

Equipment that been tested and found suitable for a specified purpose or that meets the appropriate designated standards is ___.

A(n) ___ switch is for use on branch-circuits and is rated in amperage and voltage.