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 calcium (Ca++) value range considered normal in adults?

7.5-9.5
8.0-10.0
8.6-10.2
9.0-11.0

The correct answer is: 8.6-10.2

The normal calcium (Ca++) value range for adults is generally established between 8.6 and 10.2 mg/dL. This range indicates the typical functioning levels of calcium in the blood necessary for various physiological processes, including muscle contraction, nerve conduction, and bone health. Maintaining calcium levels within this range is critical, as both low (hypocalcemia) and high (hypercalcemia) levels can lead to serious health issues. For example, hypocalcemia can result in muscle spasms and neurological symptoms, whereas hypercalcemia can lead to kidney stones and cardiovascular problems. The other ranges provided do not reflect the widely accepted normal values for adults. They may be too low or too high and could lead to misinterpretation of a patient's calcium status. Understanding and identifying the correct normal range is essential for assessment and intervention in clinical practice.