SUBSCRIBE
NUR 213 Test 4
- Thyroid*
Answer A butterfly-shaped gland in the neck that secretes triiodothyronine (T3) and thyroxine (T4). It is responsible for regulating metabolism that influences almost every body system. Iodine is a necessary component in the synthesis of thyroid hormone. Thyroid problems are more likely in women than men. A goiter is an enlargement of the thyroid gland with or without symptoms of thyroid dysfunction. Excess pituitary TSH can stimulate enlargement of the thyroid gland and cause goiter formation.
- Hypothyroidism*
Answer Deficient production of thyroid hormone by the thyroid gland. Primary, congenital, thyroid carcinoma.
- Primary hypothyroidism*
Answer Iodine deficiency (endemic goiter)
most common worldwide. Autoimmune thyroiditis (Hashimoto disease)
most common hypothy- roidism in US.
- Myxedema*
Answer Nonpitting, boggy edema, especially around the eyes, hands, and feet; thickening of the tongue
- Myxedema coma*
Answer Medical emergency, diminished level of consciousness; hy- pothermia without shivering, hypoventilation, hypotension, hypoglycemia, lactic aci- dosis, and coma
- Diagnosis of hypothyroidism
Answer In primary hypothyroidism, there is low hormone secretion by the thyroid gland, which constantly signals the pituitary to decrease TSH -High TSH level, low free T3 and free T4 In mild or subclinical hypothyroidism, High TSH level, normal free T3 and free T4 In secondary hypothyroidism, low TSH level, low free T3 and free T4 1 / 2
SUBSCRIBE
Another way to diagnose is
Answer
-Antithyroglobulin (anti-Tg) -Antithyroperoxidase (anti-TPO) antibodies
- Primary hypothyroidism results from
Answer B
- Treatment of Hypothyroidism
Answer -Replacement hormone therapy with levothyrox- ine -Surgical intervention if necessary
- Hyperthyroidism*
Answer Excessive secretion of T3 and T4
- Thyrotoxicosis*
Answer Excess amounts of thyroid hormone are secreted from the thyroid gland.
- Graves Disease*
Answer An autoimmune disease, develops autoantibodies. Thy- roid-stimulating antibodies bind to and activate thyrotropin receptors within the thyroid gland, causing the gland to enlarge and continually synthesize thyroid
hormones.-Hyperthyroidism
- The level of thyroid-stimulating hormone (TSH) in Graves disease is
Answer
- low
- high
- normal
- variable
- / 2