Patho Exam 4 Thyroid Disease

20 Questions | By Perduekm | Last updated: Mar 22, 2022 | Total Attempts: 469

Questions

Settings

Create your own Quiz

Questions and Answers

1.

The appearance of cells in an active thyroid include....
- A.
  
  Large follicles and cuboidal lining
- B.
  
  Small follicles and cuboidal lining
- C.
  
  Small follicles and flat lining
- D.
  
  Large follicles and flat lining
2.

The thyroid has one of the lowest rates of blood flow per gram of tissue of any organ.
- A.
  
  True
- B.
  
  False
3.

Thyroid follicular cells collect and transport what to the colloid?
- A.
  
  Iodide
- B.
  
  T4
- C.
  
  Iodine
- D.
  
  T3
4.

T4 is composed of what types of molecules coupled together?
- A.
  
  Two di-iodotyrosine
- B.
  
  4 mono-iodotyrosine
- C.
  
  One di-iodotyrosine and one mono-iodotyrosine
- D.
  
  I have no idea.
5.

T3 and T4 are synthesized in the colloid by a process called
6.

The approximate half-life of T4 and T3 respectively are
- A.
  
  30 hours and 6-7 days
- B.
  
  8 hours and 2 days
- C.
  
  6-7 days and 30 hours
- D.
  
  2 days and 8 hours
7.

Thyroid-stimulating hormone is secreted by
- A.
  
  Anterior pituitary
- B.
  
  Posterior pituitary
- C.
  
  Hypothalamus
- D.
  
  Thyroid gland
8.

TSH secretion is
- A.
  
  Enhanced by stress
- B.
  
  Inhibited by stress
9.

An abnormal enlargement of the thyroid gland is known as
10.

Normal TSH secretion exhibits a circardian pattern. When does TSH secretion typically peak?
- A.
  
  Before PA school finals
- B.
  
  Afternoon and evening
- C.
  
  During the day
- D.
  
  After midnight
11.

T3 induces increased production of what type of receptors?
- A.
  
  Beta-adrenergic
- B.
  
  G-protein coupled receptors
- C.
  
  Membrane receptors
12.

TSH receptor autoantibody (TSH-R Ab) is
- A.
  
  Antagonist
- B.
  
  Agonist
13.

Germ cell tumors are a less common cause of hyperthyroidism. These types of tumors contain small quantities of hCG.
- A.
  
  True
- B.
  
  False
14.

Trasient hyperthyroid preceds the development of
- A.
  
  Fulminant hyperthyroidism
- B.
  
  Cytokine storm
- C.
  
  Hypothyroidism
- D.
  
  Death
15.

Patients with Graves disesea typically suffer from what other types of disorders?
- A.
  
  Autoimmune
- B.
  
  Metabolic
- C.
  
  Hematologic
- D.
  
  Cancer
16.

One possible mechanism for Graves disease/hyperthyroidism is an immune response against a viral antigen that shares homology with the TSH receptors. The term for this situation would be
17.

Patients with hyperthryoidism show an increase in osteoblastic and osteoclastic activity.
- A.
  
  True
- B.
  
  False
18.

In men with hyperthyroidism mean sperm counts are..
- A.
  
  Undetectable
- B.
  
  Normal
- C.
  
  Normal but with increased motility
- D.
  
  Normal but with decreased motility
19.

The most common cause of hypothryoidism is
- A.
  
  Hashimotos thyroiditis
- B.
  
  Graves Disease
- C.
  
  Thyroid storm
- D.
  
  Abnormal iodine metabolism
20.

What test is the most sensitive for early hypothyroidism?
- A.
  
  Serum LH
- B.
  
  Serum TSH
- C.
  
  Serum FSH
- D.
  
  Serum TH