True or False: A positive Trousseau's sign indicates hypercalcemia.

Cushing’s Syndrome → Dexamethasone Suppression Test

• Cushing’s Syndrome results from excess cortisol. The dexamethasone suppression test evaluates whether cortisol production is appropriately suppressed by exogenous steroids.

Addison’s Disease → ACTH Stimulation Test

• Addison’s Disease involves adrenal insufficiency. The ACTH stimulation test checks if the adrenal glands can produce cortisol when stimulated.

Graves’ Disease → TSH Receptor Antibody Test

• Graves’ Disease is an autoimmune hyperthyroid condition where autoantibodies stimulate the thyroid. The TSH receptor antibody test detects these autoantibodies.

Diabetes Insipidus → Water Deprivation Test

• Diabetes Insipidus causes excessive urination due to ADH deficiency or resistance. The water deprivation test assesses the kidneys' ability to concentrate urine in response to dehydration.

Hashimoto’s Thyroiditis → Antithyroid Antibody Test

• Hashimoto’s Thyroiditis is an autoimmune hypothyroid disorder characterized by elevated antithyroid antibodies.

Syndrome of Inappropriate Antidiuretic Hormone (SIADH) → Hyponatremia

Excess ADH leads to water retention, diluting sodium levels.

Addison’s Disease → Hyperkalemia

Adrenal insufficiency leads to decreased aldosterone, causing potassium retention.

Hypoparathyroidism → Hypocalcemia

Lack of parathyroid hormone reduces calcium levels.

Diabetes Insipidus → Hypernatremia

Excessive water loss leads to sodium concentration increase.

Hyperparathyroidism → Hypercalcemia

Excess parathyroid hormone increases calcium release from bones.