hypothyroid part ii n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Hypothyroid Part II PowerPoint Presentation
Download Presentation
Hypothyroid Part II

Loading in 2 Seconds...

play fullscreen
1 / 13

Hypothyroid Part II - PowerPoint PPT Presentation


  • 96 Views
  • Uploaded on

Hypothyroid Part II. Module 7. Main Causes:. Primary (direct and 95% of cases) Destruction of thyroid tissue Radioactive Iodine Hashimoto’s Surgical removal/radiation Untreated Graves’ disease (which eventually destroys gland) Defective hormone synthesis Iodine deficiency

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Hypothyroid Part II' - tait


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
main causes
Main Causes:

Primary (direct and 95% of cases)

  • Destruction of thyroid tissue
    • Radioactive Iodine
    • Hashimoto’s
    • Surgical removal/radiation
    • Untreated Graves’ disease (which eventually destroys gland)
  • Defective hormone synthesis
    • Iodine deficiency

Secondary (indirect and 5% of cases)

  • Pituitary/hypothalmic neoplams
  • Congenital hypopituitarism
what role does iodine have
What role does Iodine have?

The Iodine we ingest

from salt intake is the

precursor for thyroid

hormones T3 and T4.

iodine and hypothyroidism

Pituitary keeps

Sending

TSH

Decreased

Feedback

To Pituitary

Thyroid grows to try

And respond to

Pituitary signal

Low TH in

body

Iodine and Hypothyroidism
  • Iodine is needed for production of T3, T4.
  • Without Iodine T3/T4 production decreases
  • Decreased T3 and T4 stimulates TSH
  • TSH stimulates the thyroid gland causing it to enlarge (which may result in a goiter)
secondary cause of hypothyroidism
Secondary Cause of Hypothyroidism
  • Hypothyroidism can be a result of decreased function of the anterior pituitary gland
  • This results in decreased TSH production and lower T3/T4 levels
hashimoto s disease
Hashimoto’s disease
  • Destruction of the glandular tissue by circulating antibodies
  • Autoimmune disease
  • Familial
  • More common in women
  • Diagnosis:
    • Presence of circulating thyroid antibodies
    • Thyroid hormone levels
    • Radioactive iodine uptake
    • Symptoms
    • Presence of Goiter

Dr. Hashimoto

hypothyroidism clinical manifestations
Hypothyroidism Clinical Manifestations
  • Weight gain
  • Decreased heat production
  • Low BMR
  • Cold intolerance
  • Lethargy
  • Tiredness
  • Constipation
  • Slightly lowered body temperature
  • Increased TSH which may lead to goiter
  • Altered thought processes
  • Which of these symptoms did the patient you interviewed have?
  • Stop and compare these symptoms with those of Bill Loney
untreated hypothyroidism causes myxedema mucous swelling
Untreated hypothyroidism causes Myxedema (“mucous swelling”)
  • Decreased metabolism causes
  • Build up of metabolites (proteins/sugars: glycosaminoglycans)
  • Metabolites accumulate in the tissues which in turn increases mucous and water in the tissue
  • Cellular/tissue edema which is mucinous: myxedema
myxedema
Myxedema
  • See also Fig 48-6 on pp. 1319
  • Dull, puffy skin with mask-like expression, prominent tongue and edema around the eyes, thin/sparse hair
hypo vs hyper
Hypo vs. Hyper
  • Compare and contrast the clinical manifestations for hyper vs. hypo thyroidism (see Table 48-4, pp. 1313)
  • Keep in mind the two main reasons these symptoms occur…what are they?

(Discuss and then click when you are done)

1. Alterations in metabolism

2. Alterations in tissue sensitivity to sympathetic nervous system responses

just like bill
Just like Bill
  • External replacement of the thyroid hormone is the treatment of choice
    • Given orally , once a day
    • Dosage regulated by patient response and monitoring of patient’s lab values
  • Surgery to remove goiter if it is large and doesn’t decrease with hormone therapy
patient teaching
Patient Teaching
  • Review Table 48-10 pp. 1322 in your text and the Nursing Care Plan on pp. 1321
  • Are there any other interventions or teaching items would you add as the nurse caring for a patient with hypothyroidism?