An elevated hemoglobin result may be caused by:

An elevated hemoglobin result can indeed be influenced by the presence of lipemia in the CBC (Complete Blood Count) tube. When the plasma is cloudy due to high levels of lipids, it can lead to inaccuracies in the measurement of hemoglobin. This is because the turbidity from the lipemia can interfere with the light absorbance technique used in many hemoglobin assays, potentially resulting in a falsely elevated reading. This scenario highlights the importance of proper sample handling and processing in ensuring accurate laboratory results.

Using a citrate tube or an EDTA tube as anticoagulants is not inherently associated with causing elevated hemoglobin readings. Citrate is typically used for coagulation studies and could lead to inaccurate results if used for a CBC, but it does not affect hemoglobin levels specifically. EDTA is the standard anticoagulant for CBCs and would not cause a rise in hemoglobin either. Similarly, while drawing a sample from an arm with an IV may introduce dilution or contamination factors, it generally does not lead to a true elevation in hemoglobin levels. Instead, it could dilute hemoglobin levels if fluids are being infused.

Understanding how various factors affect test results is a key aspect of laboratory science, and recognizing the impact of lipemia is crucial for accurate