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NURS 323 - Exam 1 (Thyroid, Diabetes, Diuretics) Questions and Correct Answers $10.99
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NURS 323 - Exam 1 (Thyroid, Diabetes, Diuretics) Questions and Correct Answers
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Thyroid Vascular, two lobed, surrounds trachea What does the thyroid produce & secrete? T3= triiodothyronine T4=thyroxine --Converts in the body to T3 What regulates the thyroid? TSH & TRH --T3 and T4 are stimulated by TSH Thyroid hormone Regulates metabolism -energy -heart stimulation (increase...

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  • September 13, 2024
  • 20
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nurs 323 exam 1 thyroid diabetes diuretics q
  • thyroid vascular two lobed surrounds trachea
  • what does the thyroid produce secrete t3 trii

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  • NUR 323

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NURS 323 - Exam 1 (Thyroid, Diabetes,
Diuretics) Questions and Correct
Answers
Thyroid ✅Vascular, two lobed, surrounds trachea

What does the thyroid produce & secrete? ✅T3= triiodothyronine
T4=thyroxine
--Converts in the body to T3

What regulates the thyroid? ✅TSH & TRH
--T3 and T4 are stimulated by TSH

Thyroid hormone ✅Regulates metabolism
-energy
-heart stimulation (increased HR & heart contraction)
--no thyroid hormone causes bradycardia)
-growth and development
-body temp
-menstrual cycles

Decreased TSH causes what? ✅Increased weight gain

Deficient Thyroid/Hypothyroidism symptoms ✅-Hair loss/receding hair line
-Apathy
-Lethargy
-Dry Skin
-Intolerance to cold
-Facial & eyelid edema
-Dull blank expression
-Extreme fatigue
-Thick-tongue/slow speech
-Anorexia
-Brittle hair and nails
-Menstrual disturbance
-Muscle aches and weakness
-Constipation

Late clinical manifestations of Hypothyroidism ✅-Subnormal temp
-Bradycardia
-Weight gain
-Decreased LOC

,-Thickened skin
-Cardiac complications

Hypothyroidism treatment ✅Lifelong replenishment via thyroid supplement

Myxedema ✅Severe hypothyroid

Myxedema symptoms ✅-Bradycardia
-Sluggish
-Edema
-Possible coma
-All body systems slow down

Congenital hypothyroidism (cretinism) ✅When mom doesn't have efficient thyroid ->
baby with mental/neuro impairment
-reversible if caught early

Hyperthyroid symptoms ✅-Tachycardia
-Sweating
-Diarrhea
-Exopthalmus

Graves Disease ✅Most common cause of hyperthyroidism

Autoimmune disorder

Lab Values for Thyroid Function ✅elevated TSH -> low thyroid
low TSH -> high/hyperthyroid
elevated TSH ->T3 & T4 are low
low TSH -> T & T4 are high

Thyroid Agents ✅Levothyroxine
Methimazole
Propylthiouracil (PTU)

Levothyroxine ✅-Synthroid, Levothroid
-treats HYPOTHYROID
-Replacement therapy for hypothyroid and goiter
-synthetic form of thyroxine (T4) and is converted into T3 in the body replaces both
thyroid hormones in the body
-increases all metabolic processes

Goiter ✅large neck due to overworked thyroid

emergency treatment for myxedema coma ✅IV form of Levothyroxine

, Levothyroxine adverse effects ✅-thyrotoxicosis (thyroid storm)í RAPID hyperthyroid
medical emergency
-osteoporosis secondary to speeding up bone loss
-atrial fibrillation (cardiac arrythmia)

Levothyroxine contraindications/precautions ✅-Category A drug: safe in pregnancy
--Passed in breastmilk but safe to use because it is a naturally occurring hormone (but
breast feed before having a dose)
-Caution with elderly patients, older adults
-Caution with thyroitoxicosis, acute MI patients

Levothyroxine Pharmacokinetics ✅-Give PO on an empty stomach
-Prescribed in mcg
-Absorption is decreased by ***allow 4 hours between admins if taking these***
--Ca+ supplements (decrease)
--Antacids & H2 blockers (decrease)
--Iron
--Cholesterol binding agents
-Long half life of 7 days
--Dosing = 1x/day
--Takes 1 month to reach plateau

Levothyroxine Interactions ✅-Catecholemines (increase epinephrine and dopamine)
--Causes an increased response
-Antiseizure meds
--Increase levothyroxine metabolism
-Can increase the effects of Coumadin since it breaks down Vit K

Levothyroxine Nursing Implications ✅-Almost anyone can take this drug
-Empty stomach, PO, 1x daily
-Dose starts low and increases slow
-Frequent follow up and lab monitoring
--Blood work 4-6 weeks after initiating therapy
-Different brands of levothyroxine may not work the same so this needs to be
considered

Methimazole (trapazole) ✅-Treats HYPERTHYROID
-Drug of choice -> safer than PTU
-Dosing is 1 per day

Methimazole (trapazole) pharmacological action ✅Inhibits the thyroid hormone
synthesis by blocking T4 and conversion to T3
--Interferes with iodine

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