🦠microbiology review

Creatinine

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Creatinine is a waste product formed from the normal breakdown of muscle tissue. It is commonly measured in urine and blood to assess kidney function.

5 Must Know Facts For Your Next Test

  1. Creatinine levels are an important biomarker for kidney health as it is filtered out of the blood by the kidneys.
  2. In microbial genetics, creatinine can be used as a standard to compare protein concentrations.
  3. High levels of creatinine in the blood may indicate impaired kidney function or disease.
  4. Microbial enzymes can be employed to measure creatinine levels in biological samples.
  5. Visualization techniques such as mass spectrometry and chromatography are used to quantify creatinine.

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