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Creatinine and BUN — NCLEX Cheat Sheet

Kidney function markers

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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 Creatinine and BUN on the NCLEX. Keep it handy during review and on exam day!

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Key numbers

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Key facts

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Key facts

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Creatinine is a more specific marker of kidney function than BUN.

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