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Comprehensive Metabolic Panel

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Also known as: CMP; Chem 12; Chemistry Panel; Chemistry Screen; SMA 12; SMA 20; SMAC (somewhat outdated terms)
Formal name: Comprehensive Metabolic Panel
Related tests: Basic Metabolic Panel

At a Glance

Why Get Tested?

To give your healthcare provider important information about the current status of your kidneys and liver as well as electrolyte and acid/base balance and levels of blood glucose and blood proteins; to monitor known conditions, such as hypertension, and to monitor the use of medications to check for any kidney- or liver-related side effects

When to Get Tested?

As part of a routine health exam; when you are being monitored for a specific condition or are taking medications that may impact your kidney or liver

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

You may need to fast for 10-12 hours prior to sample collection; follow any instructions you are given.