Quality Assurance in Phlebotomy

Fundamentals of Quality Assurance and Continuous Improvement

Quality is defined as the degree of excellence of something. In the healthcare and laboratory environment, Quality Assurance (QA) refers to the specific processes established for standardization to ensure a quality service or product is provided and to focus on the prevention of problems. This is closely related to Continuous Quality Improvement (CQI), which involves a systematic approach to monitoring and assessing all processes to identify those that specifically need improvement. Within these frameworks, Process Improvement (PI) serves as the mechanism to identify problems and implement changes to prevent errors, noting that failed processes are the primary lead to errors. Scheduled reviews are a core component of QA programs to assess the appropriateness, applicability, and timeliness of care, ultimately aiming to find better ways to achieve goals and outcomes.

Methodologies for Quality and Process Improvement

Several specialized tools are utilized to manage quality. Failure Modes & Effects Analysis (FEMA) is a proactive methodology focused on the prevention of failures. It requires practitioners to ask and answer three critical questions regarding a process: "What could go wrong?", "Why did it go wrong?", and "What would be the outcome if it did?" Six Sigma is another methodology that focuses on the evaluation of both pre-analytical and post-analytical processes. It involves rigorous monitoring to minimize or eliminate waste and functions by comparing the effectiveness of a process before improvement with its capability after trying possible solutions. Lean Methodology aims to eliminate waste caused by unnecessary processes and redirect efforts specifically toward customer needs; in this model, employees are responsible for developing action plans to improve, simplify, and redesign processes. Lean is often dependent on Root-Cause Analysis (RCA). Root-Cause Analysis is an investigative and problem-solving process performed after an event or problem occurs. RCA is used to identify trends and understand underlying causes. It is a mandatory requirement by The Joint Commission (TJC) and must be performed in response to all Sentinel Events (SEs). The output of an RCA is an implemented action plan, the effectiveness of which must be monitored over time.

Quality Indicators, Thresholds, and Data Management

Quality Indicators (QI) provide vital information regarding the effectiveness and quality of processes by monitoring specific areas of patient care, including preanalytical, analytical, and postanalytical laboratory processes. To be valid, a Quality Indicator must be measurable, well-defined, objective, and specific, providing information that leads directly to improvement actions. Every indicator must have an established Threshold Value, which is defined as a level of acceptable practice beyond which quality patient care cannot be assured. If a threshold level is exceeded, it may lead to a formal evaluation. Data for these evaluations are collected and organized from various sources, including patient records, lab results, and incident reports. When a problem is identified through this data, a Corrective Action Preventative Action (CAPA) plan is initiated. A CAPA plan defines exactly what will change and the specific timeline for when that change will occur.

Outcomes and Quality Control in Phlebotomy

Outcomes in quality assessment are typically expressed in numbers only. For example, an outcome measurement might track how many times specimens had to be redrawn due to an incorrect tube being used. However, outcome data alone does not explain why a failure is happening. Improving outcomes depends on a comprehensive process review, which involves following a process from start to finish and standardizing it with checks and controls. Quality Control (QC) is the specific use of these checks and controls to assure quality and is primarily concerned with the prevention of problems before laboratory results are released. In phlebotomy, specific areas subject to QA and QC include patient preparation, specimen collection, devices, tubes, labeling, technique, and collection priorities. Patient identification (Patient ID) is noted as a critical area of focus. One specific QA tool used is the Delta Check, which involves comparing the current results of a laboratory test with previous results for the same test on the same patient to identify discrepancies.

Essential Documentation and Medical Records

Patient records provide chronologic documentation of medical care and include up-to-date information regarding treatments and plans for continued care to aid in the practice of medicine. These records facilitate communication between physicians and other healthcare providers and may serve as a legal document in a court of law. They are also valuable for helping hospitals evaluate performance outcomes. Access to these records is strictly restricted to those with a verifiable need to review the information. Test catalogs and reference manuals are provided as online resources for patients and collectors. They contain information on how to prepare the patient and the requirements for collecting a high-quality sample. This information includes CPT codes, the type of specimen, the amount needed, special handling requirements, transport temperature, container type, and specific causes for specimen rejection.

Specialized Manuals and QA Documentation Forms

Laboratories must maintain several specialized manuals. The Procedure Manual includes the purpose of a procedure, the policy, specimen type, collection method, equipment and supplies, and a step-by-step procedure. It also details limitations and variables, corrective actions, method validation, normal values and references, as well as review, revision, and approval dates/signatures. The Safety Manual is required by OSHA and contains policies for chemical, electrical, fire, and radiation safety, alongside exposure control, disaster plans, and hazardous material handling. The Infection Prevention and Control Manual outlines policies to comply with federal regulations and accreditation requirements, covering hand hygiene, precautions for patients and specimen handling, and accidental contamination protocols. QA Forms are used to document QC checks, such as temperature logs, centrifuge maintenance records, heat block temperature logs, and equipment check forms. Internal and event reports, such as incident reports, are also standard components of QA documentation.

Risk Management and Workplace Conduct

Risk is defined as the chance of loss or injury, and Risk Management is the internal process designed to identify and minimize situations that pose a risk to patients and employees. There are two primary ways to manage risk: controlling risk to avoid an incident entirely, or paying for the incident after it occurs. Another aspect of risk and quality involves workplace conduct, specifically regarding sexual harassment. Sexual harassment is a form of sex discrimination involving persistent or offensive conduct related to a person’s sex that negatively affects a reasonable person’s job. It is not limited by gender and does not have to involve the opposite sex. The recipient of such behavior must make it clear that the conduct is unwelcomed, and any witness to such an event has a responsibility to report it. Documentation is critical, and a detailed log should be kept for persistent conduct. Victims are encouraged to meet with a supervisor or Human Resources (HR) to file a formal complaint.