Predictive Variables for Abnormal Comprehensive Metabolic Panel Testing and Potential Cost Savings in Children...

Area of Science:

• Pediatric Emergency Medicine
• Clinical Chemistry
• Health Economics

Background:

• Comprehensive metabolic panels (CMP) are frequently ordered in pediatric emergency departments (PEDs).
• Identifying which pediatric patients truly require a CMP versus a basic metabolic panel (BMP) is crucial for optimizing resource utilization and cost-effectiveness.

Purpose of the Study:

• To identify clinical variables that predict abnormal liver function test (LFT) results in pediatric patients.
• To evaluate the potential cost savings of utilizing a BMP instead of a CMP when specific clinical indicators are absent.

Main Methods:

• A retrospective cross-sectional descriptive study was conducted on 207 children (<18 years) in an urban academic PED.
• Twelve clinical variables and liver function test (LFT) results were analyzed to identify predictors of abnormal CMP results.

Main Results:

• History of liver disease, history of heart disease, jaundice, and hepatomegaly were significantly associated with abnormal LFT results (P < 0.05).
• A false-negative rate of 16% was observed for LFTs, with marginally abnormal values in most cases.
• Ordering only a BMP for patients lacking the 12 clinical variables could result in an estimated annual cost saving of $7125.

Conclusions:

• A BMP may be adequate for pediatric patients in the PED who present without specific clinical variables suggestive of liver dysfunction.
• Implementing a strategy to limit CMP testing to higher-risk patients could lead to significant cost savings in the pediatric emergency setting.