Certified Medical-Surgical Registered Nurse (CMSRN) Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is considered a normal anion gap range?

8-16 mEq/L

The normal anion gap range is typically recognized as 8-16 mEq/L. This value represents the difference between the measured cations (positively charged ions) and the measured anions (negatively charged ions) in serum blood, which helps assess acid-base balance in the body. An anion gap that falls within this range indicates a balance between cations and anions, suggesting that the body's metabolic processes and waste excretion are functioning properly.

Values outside this range can indicate possible metabolic disturbances. For instance, an increased anion gap may suggest conditions such as diabetic ketoacidosis or renal failure, while a decreased anion gap could indicate hypoalbuminemia or certain metabolic conditions. Recognizing and understanding the normal range of the anion gap is important for healthcare professionals to effectively diagnose and manage various health conditions related to acid-base imbalances.

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4-12 mEq/L

16-24 mEq/L

1-10 mEq/L

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