TrueMedix Senior Lab Technician Interview Questions and Answers

External controls are used in scientific experiments to ensure the accuracy and reliability of the results.

• External controls are used to compare the experimental group to a control group that is not exposed to the independent variable.

• They help to eliminate or account for any confounding factors that may affect the results.

• External controls can be positive controls, which are expected to show a specific response, ...read more

The ratio and concentration of sodium citrate vary depending on its intended use.

• The most common ratio of sodium citrate to blood is 1:9, which is used for anticoagulation in blood collection tubes.

• In laboratory settings, a 3.8% concentration of sodium citrate is often used as an anticoagulant.

• Sodium citrate is also used in food and beverage industry as a food additive, with concentrations varying based on the spe...read more

Critical tests are essential diagnostic tests that play a crucial role in determining a patient's condition or disease.

• Critical tests are performed to assess the severity of a patient's condition or to make immediate treatment decisions.

• These tests are often time-sensitive and require quick turnaround for results.

• Examples of critical tests include blood gas analysis, cardiac enzyme tests, and rapid infectious dise...read more

The order of blood draw is important to prevent cross-contamination and ensure accurate test results.

• Start with blood cultures to minimize contamination.

• Follow with coagulation tests, as they are least affected by other tests.

• Next, draw non-additive tubes (e.g., serum or plasma) for chemistry tests.

• Draw tubes with additives (e.g., anticoagulants) for hematology tests.

• Finally, collect tubes for immunology and micro...read more

QC stands for Quality Control.

• QC is a process used to ensure that products or services meet specified requirements and standards.

• It involves monitoring and testing various aspects of the product or service to identify and correct any defects or deviations.

• QC can include activities such as inspections, measurements, sampling, and analysis.

• It plays a crucial role in maintaining consistency, reliability, and customer...read more

Types of QC include internal, external, analytical, and procedural.

• Internal QC involves routine checks within the laboratory to ensure equipment and processes are functioning properly.

• External QC involves participation in proficiency testing programs to compare results with other laboratories.

• Analytical QC focuses on the accuracy and precision of test methods and instruments.

• Procedural QC ensures adherence to stan...read more