Family Medicine

Answer 2 Causes of secondary hypertension occur more frequently than do those of essential hypertension. Essential hypertension is much more common than is secondary hypertension; approximately 90% of cases of hypertension involve essential (primary) hypertension.2 Both hyperthyroidism and hypothyroidism can cause secondary hypertension. Other causes associated with secondary hypertension include renal parenchymal disease, coarctation of the aorta, and renovascular disease.1 REFERENCES 1. Beers MH, Berkow R, editors. The Merck manual of diagnosis and therapy. 17th ed. Whitehouse Station (NJ): Merck Research Laboratories; 1999 1629-46. 2. Dambro MR, editor. Griffith’s 5-minute clinical consult. Philadelphia: Lippincott Williams & Wilkins; 2000:528-9. Click here to return to the questions

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