copy 4 Flashcards

1
Q

How is thyrotoxicosis diagnosed?

A

Diagnose with thyroid function test. In thyrotoxicosis, serum levels of T3
and T4 are elevated and TSH levels low

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2
Q

What are the treatment options for hyperthyroidisim?

A

Anti-thyroid drugs: Drugs such as methimazole (Tapazole) and propylthiouracil (PTU) block the thyroid from making hormones.
* Radioactive iodine by mouth: The overactive thyroid cells absorb the
radioactive iodine, which damages the cells.
* The thyroid gland shrinks and thyroid hormone levels are reduced, usually leading to permanent destruction of the thyroid, which then causes hypothyroidism.
* Surgery: Surgical removal of the thyroid gland (thyroidectomy). This will correct hyperthyroidism, but it will usually cause hypothyroidism.

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3
Q

What is primary, secondary, and teritary hypothyroidism?

A

Primary hypothyroidism: T4 and T3 levels are
abnormally low and TSH is high. * Secondary and tertiary hypothyroidism: both
thyroid hormones and TSH are low.

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4
Q

What is hashimoto’s disease?

A

An autoimmune disease that causes hypothyroidisim

The antibodies destroy the thyroid and follicular cells

Elevated TSH may Cause hypertrophy and goiter

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5
Q

What is myxedma?

A

a severe hypothyroid state due to thyroid
failure
* Diagnosed with TSH and T4 tests

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6
Q

What is myxedma crisis?

A

Myxedema crisis occurs when the body can no longer tolerate the changes caused by severe hypothyroidism which leads to decompensation and requires immediate medical attention.

Along with the signs and symptoms of severe hypothyroidism, symptoms of
myxedema crisis can include:
* decreased breathing (respiratory depression) * lower than normal blood sodium levels (hyponatremia) * hypothermia
* confusion or mental slowness * shock
* low blood oxygen levels * high blood carbon dioxide level * Seizures and coma
* Myxedema crisis can cause death often due to complications from infection, bleeding, or respiratory failure.

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