Medical Laboratory Professionals' Association of Ontario (MLPAO) Practice Exam

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• What is the purpose of the catalyst in an anaerobic jar?
• A fecal sample for culture and sensitivity is collected by which method?
• What is the term for the enzymes used to increase the rate of chemical reactions in the body?
• What happens to the volume measurement of a volumetric flask calibrated at 20°C if the liquid is heated before measurement?
• What is the purpose of using anticoagulants in blood collection tubes?
• What is the function of potassium in the body?
• What is a critical factor that can distort cellular morphology in cytology?
• What does the term "hemolysis" refer to?
• What type of data does a Holter monitor primarily collect?
• What does measuring cholesterol and triglycerides levels in the blood assess?
• If radioactive capsules or beads spill, what is the correct method for cleanup?
• Which cell type in the gastric mucosa releases hydrochloric acid (HCl)?
• Radioactive materials are classified under which class of dangerous goods?
• Which cell type is primarily responsible for producing antibodies?
• What condition can be diagnosed through the measurement of blood cortisol levels?
• What type of container is required for shipping packages that contain dry ice?
• In clinical chemistry, what is the purpose of a lipid panel?
• What type of blood sample is most often used for blood typing?
• A hematoma may result from all of the following, EXCEPT?
• What does the term "aseptic technique" refer to?
• When performing a urine microscopy, the specimen must be centrifuged at 1,500 to 3,000 rpm for how many minutes?
• In which phase of laboratory testing can most pre-analytical errors occur?
• Which of the following blood products is kept in a -20 degrees Celsius freezer?
• What does a quality assurance program help to maintain in a laboratory?
• Why might a laboratory reject a specimen for INR testing?
• What type of atmosphere is required for strict anaerobic growth?
• An elevated hemoglobin result may be caused by:
• The attributes of good judgment respecting patients' rights and not harming anyone intentionally are examples of which of the following?
• Which type of bacteria retains crystal violet stain during the Gram staining process?
• The shipment of dry ice is considered minor danger and falls within packing group:
• Which additive is preferred for clotting studies to minimize carryover?
• Which type of test is a complete blood count (CBC)?
• Before testing a patient's glucose by glucometer, what must the laboratory assistant complete?
• Which of the following tests is primarily used to assess renal function?
• Which of the following is NOT an acceptable way to express solution concentration?
• A test for liver function detects impairment in 30% of patients with disease. This test shows:
• Which result is most likely found in combination with a high serum creatinine result?
• A Holter monitor is NOT used for which of the following purposes?
• What is the standard temperature for incubating cultures in microbiology?
• Which pairing occurs during DNA replication?
• In a typical ECG setup, which lead configuration would measure heart activity best?
• Which risk factor increases the likelihood of infection in patients?
• What type of laboratory is equipped to handle pathogens that pose a moderate risk to personnel and the environment?
• Infectious substances are classified into how many risk groups?
• When performing a urine microscopy, at what speed should the specimen be centrifuged?
• In which situation would a volumetric flask give a lower volume reading?
• What would be the outcome if a specimen is left in a fixative solution for too long?
• What does a positive human chorionic gonadotropin (hCG) test indicate?
• What is the main role of platelets in the blood?
• What is the typical volume of blood in a single unit of packed red blood cells?
• What is the result of an error in preparing a commercial control?
• Which lab test measures the concentration of cortisol in the blood?
• What is the main goal of continuing professional development for laboratory professionals?
• What is the laboratory assistant's first response to a needle stick injury?
• How is the term 'bias' defined in laboratory settings?
• In which section of the laboratory would a microbiologist work?
• Which of the following is a fundamental principle of safety in a laboratory?
• What is the recommended number of inversions for complete and rapid clotting in a vacutainer tube containing clot activators?
• What is the main role of parietal cells in the stomach?
• An ECG is performed on a patient by connecting leads to the patient's:
• While performing an ECG on a hospital inpatient, what should the laboratory assistant do if they notice an extra beat?
• Which statement regarding thermometers is NOT correct?
• An ECG requires that electrodes are attached to the patient's skin on which of the following?
• What is the role of the quality assurance program in a laboratory?
• What hazard is indicated by the corresponding hazard symbol?
• What is the role of a laboratory analyzer in a clinical laboratory?
• What does the Coombs test screen for?
• What test is commonly used to assess kidney function?
• What is the primary role of a hematologist?
• Distilled water meets the specifications for all of the following EXCEPT?
• What is the primary purpose of specimen labeling in the laboratory?
• How should a laboratory assistant dispose of a needle after a venipuncture?
• Which of the following is the anticoagulant of choice for blood gas studies?
• A coagulation specimen for prothrombin time assay that is unopened and stored at 18-24°C must be tested after collection within a MAXIMUM of:
• What is the purpose of a competency assessment for laboratory professionals?
• Which of the following is NOT required in a chain of custody situation?
• An electrocardiograph machine is used to record the:
• At what temperature is sheep blood added to molten agar to produce chocolate agar?
• Laboratory specimens are labelled with all of the following EXCEPT?
• What describes an abnormal increase in the number of white blood cells?
• Which reagent is used for blueing a hematoxylin-stained section?
• Two stain solutions routinely used in the Papanicolaou stain are:
• Which type of sample can be used to diagnose a respiratory infection?
• What is the effect of a control value being outside the allowable limits?
• What should be included in the emergency contact information when transporting dangerous goods?
• Which tests are likely to be ordered by a physician after performing a lumbar puncture on a patient?
• What type of test is a throat swab culture primarily used to diagnose?
• ECG electrodes are placed on the skin to:
• A donation of one unit of whole blood typically contains how much blood?
• In adult CPR, how many chest compressions should be performed immediately before administering two breaths?
• What is the main role of plasma in the blood?
• Which department of a laboratory primarily performs blood tests?
• Which artifact can result from poor electrode placement on an ECG?
• What is the role of a laboratory quality control program?
• What does the acronym CLIA stand for?
• Which type of sample is most commonly analyzed using a spectrophotometer?
• Which technique is commonly used for preserving specimens for laboratory analysis?
• Which of the following is a common laboratory test for diagnosing diabetes?
• Cytology smears must remain in the fixative for how long?
• What is the correct disposal method for a used lancet in a laboratory setting?
• Which statement about thermometers is incorrect?
• An electrocardiogram is accurately described as a test that:
• What does an electrocardiograph primarily trace?
• What is a common cause of hemolytic anemia?
• In immunology, what does the term "antigen" refer to?
• Which type of bacteria is known for being harder to treat and typically does not retain crystal violet stain?
• Which component of blood is primarily assessed in a complete blood count (CBC)?
• In a situation where there is risk of aerosol production, Level 2 containment requires a minimum of:
• Which of the following best describes the purpose of routine laboratory testing?
• When should the phlebotomist release the tourniquet during blood drawing?
• The laboratory assistant is not required to wear gloves when performing which of the following?
• Which of the following is a transfusion science test?
• What is the purpose of transport medium used in the shipment of microbiology specimens?
• What action should NOT be taken when handling a damaged package of radioactive material classified as a minor spill?
• What action is recommended for a patient with a cholesterol level of 3.5 mmol/L?
• Which of the following laboratory tests can be taken using an EDTA vacutainer tube?
• Which of the following incubation conditions is used to grow common pathogenic Campylobacter sp. from stool specimens?
• Which of the following plated media is classified as enriched?
• Which is NOT a requirement of the Transportation of Dangerous Goods Regulation when shipping dangerous substances?
• When preparing dangerous goods for transportation, which marking is NOT required on the package?
• Which hemoglobin form will NOT be measured by the cyanmethemoglobin method?
• What are biomarkers used for in clinical laboratory medicine?
• Which component of blood is primarily analyzed in the Hematology Department?
• Which risk is NOT associated with the specified WHMIS symbol?
• Which of the following items is NOT found in cryoprecipitate?
• What does ESR stand for in laboratory testing?
• Which type of virus is detected using polymerase chain reaction (PCR) testing?
• What is the term for a laboratory error occurring due to equipment malfunction?
• Which type of blood specimen is primarily analyzed for infectious disease screening?
• What is the significance of the reference range in laboratory testing?
• Which electrodes are used for Lead II?
• A muscle artifact during an ECG can be identified by which type of baseline?
• Which blood component is primarily involved in hemostasis?
• What would happen if Campylobacter agar is incubated below the optimal temperature?
• What does FOB test detect?
• What is the primary role of a Medical Laboratory Technologist?
• Why are anticoagulants critical in blood collection procedures?
• What kind of sample is analyzed for blood gases, such as pH and CO2 levels?
• Which of the following is a calculated value in a CBC?
• What is the primary function of transport media in microbiological specimen shipping?
• Which screening test is commonly used for syphilis?
• What type of blood sample is preferred for ABG analysis?
• If an error was made in preparing a commercial control, patients' results will be:
• If a physician orders an HIV viral load, the specimen should be shipped according to what packaging requirements?
• Which type of glove is necessary when dealing with potential pathogens?
• What is the acceptable range for a control if the mean is 130 g/L and the standard deviation is 2.0?
• What is the normal reference range for CSF glucose in an adult?
• Which laboratory department usually tests for infectious diseases?
• What is thrombocytopenia?
• What is the significance of quality control in a laboratory setting?
• What type of protective equipment is used against non-ionizing radiation?
• What is the major purpose of using control samples in laboratory testing?
• What kind of sample is typically required for a throat culture?
• What type of microscopy is used to observe live cells?
• Which regulation governs the practice of medical laboratory professionals in Ontario?
• How many minutes should a urine specimen be centrifuged for microscopy analysis?
• Which vacutainer additive is known to cause the most carryover issues in laboratory testing?
• The acronym 'LD' is associated with which type of profile?
• Which of the following is a surrogate test used to detect donors at high risk for transmitting transfusion-related disease?
• A volumetric flask calibrated at 20°C would contain more volume if the:
• Which laboratory technique uses antibodies to detect specific proteins?
• What is a differential white blood cell count used to determine?
• Which test performed on donor packed cells helps prevent immediate hemolytic transfusion reactions?
• What is considered the essential information on a material safety data sheet (MSDS)?
• What is the primary purpose of using alkaline solution during histological staining?
• What is the primary use of a urinalysis?
• Misidentifying a patient, which can lead to wrong diagnoses, is considered what?
• What is the role of the Medical Laboratory Professionals' Association of Ontario (MLPAO)?
• What information does a comprehensive metabolic panel (CMP) provide?
• What is the main purpose of quality control measures in laboratory testing?
• What is the purpose of a control sample in laboratory testing?
• After connecting a Holter monitor to a patient, which instruction is essential for the patient?
• Which of the following reagents is used for blueing a hematoxylin-stained section?
• What is the disparity that can arise from using different reagent lots in laboratory testing?
• How often should quality control be performed in the laboratory?
• What percentage of values fall within +/- 2 standard deviations in a normal Gaussian distribution?
• What is the primary role of guidance provided in laboratory manuals?
• What could be a consequence of failing to perform quality control in a laboratory?
• Which test is primarily used to measure liver function?
• What does the term "microbial flora" refer to?
• What is the difference between sensitivity and specificity in laboratory tests?
• Which item is NOT required when sending out a category B frozen sample?
• Which is the proper order of collection for drawing blood into collection tubes?
• Which clinical sign indicates complete airway obstruction in a choking person?
• According to Level 2 containment requirements, what is the minimum biosafety cabinet needed when there is a risk of aerosol production?
• What is the function of the gel separator in an evacuated blood collection tube?
• What structure in the digestive tract is responsible for HCl secretion?
• An electrocardiograph is the:
• In which scenario would you expect to see a normal electrocardiogram?
• What is not a part of the infectious cycle?
• In a blood transfusion context, which antigen typing is critical for preventing incompatibility reactions?
• Which of the following conditions is typically associated with elevated blood sugar levels?
• What characteristic defines a hazardous material in the laboratory setting?
• The calculation of the anion gap is useful for quality control of what?
• What does the term "biochemical markers" refer to?
• Which method is commonly used for the quantification of bacterial colonies?
• Cellular morphology of a cytological preparation is distorted when smears are:
• Which test assesses the function of the liver?
• Which process is crucial for ensuring blood samples are ready for testing?
• What is the primary function of leukocytes?
• What does an electrocardiogram or ECG record?
• A urine specimen for routine bacteriology should be collected in a container that contains:
• Which risk is not associated with the WHMIS symbol described?
• Which definition best describes the term "jaundice"?
• When collecting a CSF specimen for routine bacteriological studies, which tube is suitable for use?
• What is the optimum pH of the phosphate buffer utilized in the Romanowsky stain?
• Which of the following should NOT be ingested when a patient is collecting a sample for occult blood?