Jan 22, 2019 · The main difference between K2 EDTA and K3 EDTA is that K2 EDTA contains two chelated potassium ions whereas K3 EDTA contains three chelated potassium ions. K2 EDTA solution is spray-dried in the interior surface of plastic tubes while K3 EDTA solution comes as a liquid in glass tubes.

Sep 9, 2019 · Potassium ethylenediaminetetraacetic acid (K-EDTA) contamination of serum samples is a common cause of spurious electrolyte results, which may adversely affect patient care. The source of K-EDTA sample contamination is …

Ethylenediaminetetraacetic acid (EDTA), also called EDTA acid, is an aminopolycarboxylic acid with the formula [CH 2 N(CH 2 CO 2 H) 2] 2. This white, slightly water-soluble solid is widely used to bind to iron (Fe 2+ /Fe 3+ ) and calcium ions (Ca 2+ ), …

Potassium ethylenediaminetetraacetic acid (K-EDTA) contamination is also a significant preanalytical cause of pseudohyperkalaemia (3). Anticoagulant K-EDTA is frequently used as a sample tube anticoagulant for laboratory assays including complete blood count, glycated haemoglobin and blood typing.

Apr 19, 2024 · K2 EDTA contains dipotassium salt of EDTA, which acts as an anticoagulant by chelating calcium ions in the blood. On the other hand, K3 EDTA contains tripotassium salt of EDTA along with a preservative, typically a small amount …

Gross potassium EDTA contamination of blood samples is easily recognised by marked hyperkalaemia and hypocalcaemia. However, subtle contamination is a relatively common, often unrecognised erroneous cause of spurious hyperkalaemia.

Nov 27, 2024 · Selecting the correct type of EDTA tube—whether EDTA K2 vs K3 —depends on your specific testing needs and laboratory protocols. Understanding these differences will help ensure accurate hematological analysis and molecular diagnostics results.

Feb 7, 2018 · I want to chelate metal ion using EDTA. I saw in blood tube for anti-coagulant, they use K2-EDTA. But I have disodium salt EDTA in my lab (mw: 372.24 g/mol). So, which one is better?

The choice of K2- or K3-EDTA as the preferred anticoagulant for blood count remains controversial. We compared the effect of different concentrations of both anticoagulants on normal blood.

Nov 27, 2024 · Understanding the differences between EDTA K2 and EDTA K3 blood collection tubes is vital. Whether preserving cell morphology, ensuring accurate potassium measurements, or supporting DNA/RNA analysis, the choice of anticoagulant can …