Hyperthyroidism
👉T4 level (if elevated)
✔ Elevated T4 indicates the thyroid is overactive, producing excessive thyroid hormones.
✔ Increased T4 leads to a hypermetabolic state, increasing heart rate and energy expenditure.
✔ Can result in weight loss despite increased appetite.
✔ May cause heat intolerance and sweating due to increased metabolism.
✔ Can contribute to nervousness, tremors, and anxiety.
👉Neck assessment (goiter/enlargement)
✔ Goiter can result from thyroid hyperplasia due to excessive stimulation of TSH receptors.
✔ Enlargement may indicate Graves’ disease, a common cause of hyperthyroidism.
✔ Can cause difficulty swallowing or pressure symptoms if the gland is significantly enlarged.
✔ May be associated with exophthalmos in Graves’ disease.
✔ Often soft and diffuse rather than firm nodular (depending on etiology).
Hypothyroidism
👉level (if elevated)
✔ Elevated TSH is a primary indicator of hypothyroidism, showing the pituitary is compensating for low thyroid hormone levels.
✔ Reflects negative feedback response: low T4 → pituitary releases more TSH.
✔ Prolonged elevation can lead to thyroid enlargement (goiter) in some cases.
✔ Can indicate early hypothyroidism before clinical symptoms fully develop.
✔ Helps guide thyroid hormone replacement therapy.
👉T4 level (if low)
✔ Low T4 confirms reduced thyroid hormone production, causing a decreased metabolic rate.
✔ Leads to fatigue, lethargy, and decreased energy.
✔ May cause weight gain despite reduced appetite.
✔ Can result in cold intolerance and dry, coarse skin.
✔ Often correlates with constipation and bradycardia.
👉Client’s weight
✔ Weight gain occurs due to slowed metabolism in hypothyroidism.
✔ Can contribute to fluid retention and puffiness (myxedema).
✔ Often gradual and associated with reduced energy expenditure.
✔ May worsen cardiovascular strain if left untreated.
✔ Weight monitoring is important for assessing treatment effectiveness.
👉Skin assessment
✔ Dry, coarse, and pale skin is characteristic of hypothyroidism.
✔ Decreased sweating and oil production contribute to dryness and scaling.
✔ May be accompanied by hair thinning and brittle nails.
✔ Edema in extremities or periorbital area can occur (myxedema).
✔ Skin changes are gradual and can reflect chronic hormone deficiency.
👉Energy level
✔ Fatigue and extreme sleepiness are hallmark signs of hypothyroidism.
✔ Reduced T4 levels slow metabolic processes, leading to lethargy.
✔ Can impair physical activity and daily functioning.
✔ Often accompanied by mental slowing, depression, and poor concentration.
✔ Improvement in energy is a key indicator of effective thyroid hormone replacement therapy.
👉Temperature tolerance
✔ Cold intolerance is due to decreased basal metabolic rate.
✔ Low heat production leads to sensitivity to cold environments.
✔ Can contribute to chronic fatigue and reduced activity.
✔ May cause peripheral vasoconstriction and pale extremities.
✔ Monitoring temperature perception is part of assessing symptom control in hypothyroidism.
👉Neck assessment (goiter/enlargement)
✔ Enlargement may occur due to compensatory TSH elevation.
✔ Can lead to pressure symptoms like dysphagia or dyspnea.
✔ Often firm or nodular if longstanding iodine deficiency.
✔ Goiter in hypothyroidism may coexist with dry skin and hair changes.
✔ Neck assessment helps track progression or improvement with therapy.