Certified Nurses Operating Room (CNOR) Practice Exam

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Prepare for the Certified Nurses Operating Room Test. Utilize flashcards and multiple choice questions; each accompanied by hints and in-depth explanations. Ace your exam with confidence!

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What is the normal potassium (K+) value range in adults?

2.5-4.5
3.0-5.0
3.5-5.0
4.0-6.0

The correct answer is: 3.5-5.0

The normal potassium (K+) value range in adults is typically recognized as 3.5 to 5.0 mEq/L. This range is critical for maintaining normal physiological functions, particularly in relation to cardiac and muscular activity, as potassium is essential for the generation and conduction of electrical impulses in the body. Values below 3.5 can indicate hypokalemia, which may lead to muscle weakness, arrhythmias, and other serious complications. Conversely, values above 5.0 can indicate hyperkalemia, potentially resulting in cardiac arrest if not managed properly. Therefore, recognizing the correct potassium range helps ensure that healthcare professionals can effectively monitor and manage a patient's electrolyte balance, making the understanding of this range fundamental in clinical practice.