Certified Nephrology Nurse Certification (CNN) Practice Exam 2025 - Free Nephrology Nursing Practice Questions and Study Guide

Image Description

Question: 1 / 400

What does elevated blood urea nitrogen (BUN) levels indicate?

Increased hydration

Decreased kidney function

Elevated blood urea nitrogen (BUN) levels primarily indicate decreased kidney function, as the kidneys are responsible for filtering and excreting urea from the bloodstream. When kidney function declines due to conditions such as acute or chronic kidney disease, the ability to effectively remove urea diminishes, leading to its accumulation in the blood.

BUN is often used in conjunction with other renal function tests, such as serum creatinine, to assess the overall health of the kidneys. Elevated BUN levels can also be influenced by factors such as dehydration or high protein intake, but these are secondary to the direct implications of kidney function.

In this context, the correct understanding of BUN levels as an indicator of kidney health is critical for nephrology nursing practice, as it guides clinical assessment and potential interventions.

Get further explanation with Examzify DeepDiveBeta

Normal kidney function

Improved metabolic rate

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy