Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

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Ace your pharmacology exams with "Pharmacology and the Nursing Process" Packed with challenging quizzes based on the renowned textbook Pharmacology and the Nursing Process by Linda Lane Lilley (ISBN: 978-0323827973), it's the perfect tool to test your knowledge and prepare for success.

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What is the primary therapeutic effect of diuretics in the treatment of hypertension?

  1. Decrease in preload

  2. Increase in serum potassium levels

  3. Increase in cardiac output

  4. Decrease in blood calcium levels

The correct answer is: Decrease in preload

Diuretics (water pills) are commonly used to treat hypertension (high blood pressure). They work by increasing the amount of fluid and salt expelled from the body through increased urine production. This results in a decrease in blood volume, leading to a decrease in preload, or the amount of blood returning to the heart. This ultimately reduces the amount of work the heart has to do to pump blood effectively, which helps to lower blood pressure. Options B, C, and D are incorrect because diuretics do not impact serum potassium levels, cardiac output, or blood calcium levels in the treatment of hypertension.

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