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Hyponatremia — NCLEX Cheat Sheet

Na+ < 135 mEq/L
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👤 By the CinnaRN Clinical Content Team 🕐 Updated 2026-07-11 🏷️ Physiological Adaptation 🔖 Free to read, print, and share
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Use this quick-reference guide to spot, treat, and prevent Hyponatremia on the NCLEX. Keep it handy during review and on exam day!

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Causes

Why it happens
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Signs

What to look for

Do

Nursing actions
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Avoid

Key facts

Quick Tip

Neurologic: headache, confusion, lethargy progressing to seizures and coma.

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