American Association of Critical-Care Nurses (AACN) Certification Practice Test

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Prepare for the AACN Certification Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

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What is the indicated normal calcium range?

7.5-9.0
8.0-10.0
8.5-10.5
9.0-11.0

The correct answer is: 8.5-10.5

The indicated normal calcium range of 8.5-10.5 mg/dL is recognized based on clinical laboratory standards. This range is crucial as it represents the levels at which calcium is optimally functioning in the body, supporting critical physiological processes such as bone health, muscle contraction, nerve signaling, and hormone secretion. Calcium levels outside of this range may lead to health complications; levels below the normal range can result in hypocalcemia, which can cause muscle spasms and neurological issues, while levels above may indicate hypercalcemia, leading to potential heart problems and kidney dysfunction. Other ranges provided do not reflect the clinically accepted standards; they either encompass values that are too low or too high for normal physiological activities. Understanding this normal range helps healthcare professionals monitor patient health and diagnose potential disorders related to calcium deregulation.