Hyper/Hypothyroidism - PBSci 7

Hyperthyroidism

Condition with increased basal metabolic rate and heat intolerance

Hypothyroidism

Condition with decreased basal metabolic rate and cold intolerance

Hyperthyroidism

Causes weight loss despite an increased appetite

Hypothyroidism

Causes weight gain despite a decreased appetite

Hyperthyroidism

Associated with tachycardia, palpitations, and increased cardiac output

Hypothyroidism

Associated with bradycardia and decreased cardiac output

Hyperthyroidism

Presents with anxiety, irritability, tremors, and hyperreflexia

Hypothyroidism

Presents with fatigue, lethargy, slowed reflexes, and depression

Hyperthyroidism

Can cause accelerated bone turnover and muscle wasting

Hypothyroidism

In children, causes growth retardation and delayed milestones (cretinism)

Hyperthyroidism

Causes dyspnea due to increased oxygen demand

Hypothyroidism

Causes hypoventilation and decreased oxygen use

Hyperthyroidism

Leads to diarrhea and frequent stools

Hypothyroidism

Leads to constipation

Hyperthyroidism

Presents with warm, moist skin and fine hair

Hypothyroidism

Presents with dry, coarse skin, brittle hair, and cold, puffy skin (myxedema)

Hyperthyroidism

Causes muscle weakness (proximal myopathy)

Hypothyroidism

Causes muscle cramps and stiffness

Hyperthyroidism

Associated with oligomenorrhea and infertility

Hypothyroidism

Associated with menorrhagia and irregular cycles

Hyperthyroidism

Can cause exophthalmos and lid lag (Graves' disease)

Hypothyroidism

Can cause periorbital puffiness