Oregon Certified Nursing Assistant State Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Oregon Certified Nursing Assistant State Exam. Study with engaging quizzes and comprehensive flashcards. Each question includes hints and clear explanations to enhance understanding. Boost your confidence and get ready to excel in your exam!

Practice this question and more.

What is the primary function of the kidneys?

To regulate blood pressure
To filter waste from the blood
To produce hormones
To store excess sugar

The correct answer is: To filter waste from the blood

The primary function of the kidneys is to filter waste from the blood. The kidneys are essential organs in the urinary system, responsible for the removal of waste products and excess substances from the bloodstream to form urine. This filtration process helps maintain the body's electrolyte balance, regulates fluid levels, and eliminates toxins, contributing to overall homeostasis. In addition to waste removal, the kidneys play a role in regulating blood pressure and producing hormones, such as erythropoietin, which stimulates red blood cell production. However, these functions, while important, are secondary to their primary role in filtration. Storing excess sugar is not a function of the kidneys; that process is primarily managed by the liver and muscles through glycogen storage.