Pseudohypoglycemia: A Pitfall in Everyday Practice

Area of Science:

• Clinical Chemistry
• Laboratory Medicine
• Endocrinology

Background:

• Hypoglycemia is frequently observed in hospitalized patients.
• Laboratory test results can sometimes inaccurately indicate low blood glucose levels.
• This discrepancy is known as pseudohypoglycemia.

Purpose of the Study:

• To raise awareness among clinicians about the phenomenon of pseudohypoglycemia.
• To provide guidance on identifying situations where pseudohypoglycemia may occur.
• To outline appropriate testing strategies for confirming pseudohypoglycemia.

Main Methods:

• Review of clinical literature on pseudohypoglycemia.
• Analysis of common causes and laboratory interferences.
• Discussion of diagnostic approaches and confirmatory tests.

Main Results:

• Pseudohypoglycemia can result from various factors, including certain collection tube additives or rare blood cell abnormalities.
• Specific laboratory tests can differentiate true hypoglycemia from pseudohypoglycemia.
• Early recognition prevents unnecessary clinical interventions for falsely low glucose levels.

Conclusions:

• Pseudohypoglycemia is a critical diagnostic consideration in clinical practice.
• Awareness and appropriate testing are essential for accurate diagnosis and patient management.
• Understanding pseudohypoglycemia improves the reliability of blood glucose monitoring in healthcare settings.