Function of Thyroid Hormone Regulation

Questions and Answers

What is the primary mechanism of action of Propranolol?

Serotonin reuptake inhibitor

Dopamine receptor antagonist

Alpha-adrenergic agonist

Beta-adrenergic blocking agent (correct)

What is the brand name of the drug used to control peripheral manifestations of hyperthyroidism?

Atenolol

Inderal (correct)

Metoprolol

Timolol

What is the indication for recommending radiation or surgery in hyperthyroidism?

If the patient has a history of thyroid cancer

If the patient is asymptomatic

If euthyroidism cannot be maintained without therapy (correct)

If euthyroidism can be maintained without therapy

What is the class of drugs that Propranolol belongs to?

Beta-adrenergic blockers Signup and view all the answers

What is the effect of Propranolol on the sympathetic nervous system?

It blocks the sympathetic nervous system Signup and view all the answers

If you are 3.5 feet away from someone, how many minutes can you spend with them in a day?

45 minutes Signup and view all the answers

At what distance from others can you spend unlimited time?

4 meters Signup and view all the answers

If you're 7 feet away from someone, how many hours can you spend with them in a day?

2 hours Signup and view all the answers

What is the maximum daily time allowance when you're 10 feet away from others?

7 hours Signup and view all the answers

At what distance from others do you need to limit your daily interaction to 45 minutes?

1 meter Signup and view all the answers

What is the primary purpose of encouraging the use of dark glasses in exophthalmos?

To reduce the risk of corneal ulceration Signup and view all the answers

Why is it recommended to tape the eyelids shut during sleep in exophthalmos?

To prevent corneal exposure and drying Signup and view all the answers

What is the purpose of using isotonic eye drops in exophthalmos?

To lubricate the eyes and prevent dryness Signup and view all the answers

What is the purpose of using an eyepatch in exophthalmos?

To protect the eyes from foreign particles Signup and view all the answers

What is the primary goal of local eye care measures in exophthalmos?

To prevent complications associated with exophthalmos Signup and view all the answers

What is the purpose of a particular treatment in surgery?

To prevent intra and post surgical hemorrhaging Signup and view all the answers

Why is it recommended to mix iodide with milk, juice, or water?

To treat Gl distress Signup and view all the answers

What is the benefit of administering iodide through a straw?

To prevent tooth discoloration Signup and view all the answers

What is a potential problem that can be prevented by mixing iodide with milk, juice, or water?

Gl distress Signup and view all the answers

What is a complication that can be prevented by a particular treatment in surgery?

Intra and post surgical hemorrhaging Signup and view all the answers

What is the primary function of the mechanism that increases the amount of thyroid hormone stored within the gland?

To prevent excessive release of thyroid hormone into circulation Signup and view all the answers

What is the effect of increasing the amount of thyroid hormone stored within the gland on thyroid hormone levels in the bloodstream?

It decreases thyroid hormone levels Signup and view all the answers

What is the purpose of storing thyroid hormone within the gland?

To prepare for sudden changes in metabolic demand Signup and view all the answers

What is the net result of the mechanism that increases thyroid hormone storage within the gland?

Decreased metabolic rate Signup and view all the answers

What is the significance of the mechanism that prevents release of thyroid hormone into circulation?

It helps maintain homeostasis by preventing thyroid hormone excess Signup and view all the answers

Study Notes

Hyperthyroidism Treatment

Acts to prevent release of thyroid hormone into circulation by increasing the amount of thyroid hormone stored within the gland.
If euthyroidism cannot be maintained without therapy, radiation or surgery is recommended.

Medication for Hyperthyroidism

PROPRANOLOL (Inderal): acts as a beta-adrenergic blocking agent.
Prevents intra and post-surgical hemorrhaging.

Administering Iodide Treatment

Mix iodide with milk, juice, or water to prevent gastrointestinal distress.
Administer through a straw to prevent tooth discoloration.

Radiation Safety Precautions

Spend no more than 45 minutes a day at 1 meter (3.5 feet) from others.
Spend no more than 2 hours a day at 2 meters (7 feet) from others.
Spend no more than 7 hours a day at 3 meters (10 feet) from others.
Can spend as much time as you like at 4 meters (13 feet) from others.

Exophthalmos Management

Encourage use of dark glasses when awake and taping the eyelids shut during sleep as needed.
Use an eyepatch.
Moisturize conjunctiva often with isotonic eye drops.

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Description

This quiz explains how thyroid hormone regulation works, including the process of storing thyroid hormone within the gland to prevent its release into circulation. Understand the mechanisms that control thyroid hormone levels in the body.