Hemolysis Control in the Emergency Department by Interventional Blood Sampling

Area of Science:

• Clinical Pathology
• Emergency Medicine
• Medical Devices

Background:

• Hemolysis, the rupture of red blood cells, is a common issue in emergency departments (EDs), potentially leading to inaccurate test results.
• Elevated hemolysis rates in the ED necessitate improved blood sampling methods to ensure diagnostic accuracy.

Purpose of the Study:

• To introduce and evaluate a novel blood sampling technique designed to minimize hemolysis without requiring additional venipuncture.
• To compare the hemolysis rate of the new technique against the conventional method of blood collection via an intravenous (IV) catheter.

Main Methods:

• A prospective study involving adult patients (≥18 years) in a tertiary urban university hospital's ED.
• Two blood samples were collected from each patient: one using the new technique (without removing the catheter needle) and one using the conventional IV catheter method.
• The hemolysis index was evaluated for both sample types, with pre-trained nurses performing IV catheterization.

Main Results:

• The study included 260 patients (56.5% male, mean age 58.3 years).
• The new blood collection method demonstrated a significantly lower hemolysis rate of 1.9% (5/260) compared to the conventional method's 7.3% (19/260) (p = 0.001).

Conclusions:

• The novel blood sampling technique effectively reduces the rate of hemolysis in emergency department settings.
• This method offers a promising alternative to conventional blood collection, improving sample quality and potentially patient care.