Collection Procedures & Techniques Flashcards

What is the first step in specimen collection?

Answer: Identifying and preparing collection materials

The initial and critical step in any specimen collection procedure is to correctly identify the patient and then gather and prepare all necessary collection materials. This ensures that the right equipment is available, sterile, and ready for use, preventing errors and ensuring a smooth, efficient, and safe collection process.

What is the proper way to label a specimen sample?

Answer: Using clear and complete information, including patient details and collection time

Proper labeling of a specimen sample is crucial for accurate identification and traceability, requiring clear and complete information. This typically includes the patient's full name, date of birth, medical record number, the type of specimen, and the exact date and time of collection, preventing mix-ups and ensuring reliable test results.

Why is specimen integrity crucial during collection?

Answer: It ensures the sample's accuracy for testing

Specimen integrity is paramount because it directly impacts the reliability and accuracy of laboratory test results. Maintaining integrity means preventing contamination, degradation, or alteration of the sample from the moment of collection until testing, ensuring that the results accurately reflect the patient's condition.

What should be done if a specimen is improperly collected?

Answer: The specimen must be discarded, and a new one should be collected

If a specimen is improperly collected, its integrity and reliability for testing are compromised, making it unsuitable for diagnostic purposes. To ensure accurate results and patient safety, the compromised specimen must be immediately discarded, and a new, properly collected sample obtained, following all correct procedures.

How should specimens be transported to the laboratory?

Answer: Specimens should be properly packaged and kept under the required conditions during transport

Proper transportation of specimens to the laboratory is vital to maintain their integrity and prevent degradation or contamination. This involves securely packaging samples in appropriate containers, ensuring they are kept at specific temperatures (e.g., refrigerated, ambient), and following biohazard safety protocols to guarantee accurate test results upon arrival.

What is the proper handling procedure for blood specimens?

Answer: Blood specimens should be handled with proper precautions to avoid contamination

Blood specimens are biohazardous and require strict handling precautions to prevent contamination of the sample and exposure to healthcare workers. This includes using personal protective equipment (PPE), following aseptic techniques, and ensuring proper disposal of sharps and contaminated materials, all to maintain safety and specimen integrity.

What is the importance of patient consent in specimen collection?

Answer: Patient consent must be obtained before specimen collection to ensure ethical and legal compliance

Obtaining informed patient consent before any specimen collection is a fundamental ethical and legal requirement. It respects the patient's autonomy and ensures they understand the procedure, its purpose, and any potential risks, thereby complying with patient rights and healthcare regulations.

What is a chain of custody in specimen collection?

Answer: A process to track and document the handling of the specimen from collection to testing

A chain of custody is a meticulous documentation process that tracks the handling and storage of a specimen from the moment of collection until its final analysis. This unbroken record ensures the integrity, security, and authenticity of the sample, which is particularly critical in forensic or legal contexts where results may be challenged.

Why is documentation important during specimen collection?

Answer: Documentation ensures that all relevant details of the collection process are recorded

Thorough documentation during specimen collection is essential for maintaining accurate records, ensuring traceability, and supporting the validity of test results. It captures critical details such as patient identification, collection time, specimen type, and any deviations, which are vital for patient care, quality control, and legal purposes.