MLPAO Professional Practice and Safety Questions and Answers 2 — Questions and Answers
Question 1: Under the CMLTO Standards of Practice, what does the term 'professional accountability' require of a registered MLT?
- Reporting only errors that affect patient outcomes
- Taking responsibility for one's professional decisions, actions, and practice quality (Correct answer)
- Deferring all clinical decisions to the laboratory director
- Documenting only patient-related activities
Correct answer: Taking responsibility for one's professional decisions, actions, and practice quality
Professional accountability requires that MLTs take responsibility for all aspects of their professional practice including their decisions, actions, and the quality of their work.
Professional accountability is a core element of the CMLTO Standards of Practice. It means that registered MLTs are responsible for their own professional decisions and actions, the quality and safety of their work, compliance with applicable standards and legislation, and continuous self-assessment of their competence. Accountability extends to recognizing when a task is beyond one's competence (and seeking assistance), reporting errors and near-misses honestly, maintaining accurate documentation, and participating in quality improvement. This principle distinguishes professional practice from mere technical task completion and is central to the CMLTO registration examination competencies.
Question 2: What is the standard approach for donning (putting on) personal protective equipment (PPE) in a medical laboratory?
- Gloves → Gown → Mask → Eye Protection
- Gown → Mask/Respirator → Eye Protection → Gloves (Correct answer)
- Eye Protection → Gloves → Gown → Mask
- Mask → Gloves → Gown → Eye Protection
Correct answer: Gown → Mask/Respirator → Eye Protection → Gloves
The recommended sequence for donning PPE is: gown first (to protect clothing), then mask/respirator (to protect respiratory tract), then eye protection, and finally gloves (to protect hands and maintain the rest of the PPE).
The proper donning sequence for PPE minimizes self-contamination: (1) Gown — covers the body and clothing first; (2) Mask or N95 respirator — protect the respiratory tract; (3) Eye protection (goggles or face shield) — protect mucous membranes; (4) Gloves — must be put on last to avoid contaminating them with other PPE surfaces. The doffing (removal) sequence is the reverse to prevent self-contamination: gloves first (most contaminated), then eye protection, then gown, then mask. Each step of doffing is followed by hand hygiene. This sequence is standardized in Ontario healthcare settings and is required knowledge for laboratory professionals under infection control standards.
Question 3: A medical laboratory technologist is working alone in the laboratory late at night. Which safety practice is most critical in this situation?
- Working twice as fast to finish before others arrive
- Avoiding specimen processing until colleagues arrive
- Informing a supervisor or following the laboratory's lone-worker safety protocol (Correct answer)
- Disabling the laboratory door alarms for easier access
Correct answer: Informing a supervisor or following the laboratory's lone-worker safety protocol
Lone worker policies require that employees working alone inform their supervisor, check in at defined intervals, and ensure someone can respond in case of emergency.
Lone worker safety is an occupational health requirement in Ontario under the Occupational Health and Safety Act (OHSA). Medical laboratories must have written lone worker policies that include: notifying a supervisor before working alone, establishing check-in schedules at regular intervals, confirming emergency contact procedures, and identifying the types of hazardous work that must not be performed alone (e.g., handling high-risk biohazardous materials, working with concentrated acids). Failing to follow these protocols leaves the worker without safety backup in case of medical emergency, accident, or security incident. CMLTO expects MLTs to follow workplace safety policies as part of professional practice.
Question 4: What is the correct immediate response if a medical laboratory technologist receives a needlestick injury during venipuncture?
- Squeeze the wound to remove blood, wash with soap and water, and report to occupational health (Correct answer)
- Apply a tourniquet above the injury site immediately
- Ignore it if the patient appears healthy
- Apply antiseptic ointment and continue working
Correct answer: Squeeze the wound to remove blood, wash with soap and water, and report to occupational health
Needlestick protocol: allow the wound to bleed briefly, wash thoroughly with soap and water, report immediately to occupational health for exposure assessment and post-exposure prophylaxis (PEP) if indicated.
Immediate needlestick injury management: (1) Allow the wound to bleed briefly — do not squeeze excessively as this may increase tissue damage; (2) Wash immediately and thoroughly with soap and running water for ≥1-2 minutes; mucous membrane splashes — flush with water or saline; (3) Do not apply caustic agents or scrub the wound; (4) Report immediately to the supervisor and occupational health department; (5) Document the incident; (6) Occupational health assesses the source patient (if known) for HIV, HBV, and HCV status and determines if post-exposure prophylaxis (PEP) for HIV is indicated (ideally within 2 hours for HIV PEP). Hepatitis B prophylaxis depends on the MLT's vaccination status and source patient HBsAg status. Ontario workers' compensation (WSIB) reporting is required.
Question 5: Which of the following is a correct practice when labelling patient specimens in the laboratory?
- Labels may be applied before collection to save time if the patient's name is known
- Specimens must be labelled at the patient's bedside immediately after collection with two patient identifiers (Correct answer)
- Labels can be added later by laboratory staff if the collection team forgets
- Electronic labels are not required as long as handwritten labels are present
Correct answer: Specimens must be labelled at the patient's bedside immediately after collection with two patient identifiers
Specimens must be labelled at the point of collection immediately after collection, using at least two patient identifiers (name, date of birth, or health card number), to prevent misidentification.
Patient specimen labelling is a critical patient safety practice. Accreditation Canada and IQMH accreditation standards require: (1) Two patient identifiers on every specimen label — typically full name AND date of birth (or health card number/hospital number); (2) Labelling at the point of collection — never in advance; (3) The collector confirms patient identity verbally before collection and immediately labels the tube; (4) Labels must be legible, securely attached, and durable. Pre-labelling tubes before collection is a high-risk practice leading to patient misidentification. Adding labels after the fact without witnessing the collection is a specimen integrity violation. The 2-patient-identifier protocol is universal in Ontario hospital and laboratory settings.
Question 6: In a medical laboratory, which of the following describes the 'chain of custody' process?
- The transfer of laboratory specimens from one department to another
- Documentation of every person who handled, processed, or analysed a specimen from collection to disposal, used for medico-legal purposes (Correct answer)
- The process of transferring patient results to the physician
- The sequential testing protocol for a diagnostic algorithm
Correct answer: Documentation of every person who handled, processed, or analysed a specimen from collection to disposal, used for medico-legal purposes
Chain of custody documents every individual who handled a specimen from collection through analysis to disposal, maintaining specimen integrity for medico-legal, forensic, or regulatory purposes.
Chain of custody (COC) is a documentation protocol that creates an unbroken record of specimen custody from the moment of collection through analysis to disposal. It records the name of each individual who collected, transported, received, processed, and analysed the specimen, along with dates, times, and signatures at each transfer. COC is mandatory for specimens collected for medico-legal purposes (workplace drug testing, forensic evidence, driving under the influence), clinical trials, and any situation where specimen integrity may be challenged in legal proceedings. Proper COC ensures that the specimen analysed is identical to the specimen collected, and that it was not tampered with. CMLTO and laboratory accreditation standards require COC compliance for applicable specimen types.
MLPAO Professional Practice and Safety Questions and Answers 2
Under the CMLTO Standards of Practice, what does the term 'professional accountability' require of a registered MLT?