Medical Laboratory Science Mock Exam Study Questions and Answers, Exams of Nursing

Download Medical Laboratory Science Mock Exam Study Questions and Answers and more Exams Nursing in PDF only on Docsity! Which of the following is a surrogate test that is used to detect donors at high risk for transmitting transfusion-related disease? a) Нерatitis b) HIV c) CMV d) Malaria e) Syphilis - e) Syphilis Which of the following is a transfusion science test? a) AFP b) DAT c) NH4 d) retic e) CRP - b) DAT Which of the following items is NOT found in cryoprecipitate? a) Factor 1 b)Factor V c) Factor VIII d)Factor XII e) Fibrinogen - b) Factor V The following attributes of good judgment repecting patients' rights and not harming anyone intentionally are examples of which of the following? a) Ethical standards b)Confidentiality statements c) Competency statements d)Rules of practice e) Moral standards - a) Ethical standards A fecal sample for culture and sensitivity is collected: a) by clean catch. b)by sterile transfer. c) by septic transfer. d)by aseptic technique. MLPAO Mock Exam Study Questions And Answers 2023-2024 e) by antiseptic technique. - d) by aseptic technique. What is the function of the gel separator in an evacuated blood collection tube? a) RBCS from WBCS b) buffy coat from plasma c) RBCS and WBCS from buffy coat d)plasma from serum e) RBCS and WBCS from plasma and serum - e) RBCS and WBCS from plasma and serum Which of the following is the proper order of collection for drawing blood into collection tubes? a) Sterile blood culture specimens followed by specimens that require EDTA b)Sterile blood culture specimens followed by specimens that require no additives c) Sterile blood culture specimens followed by specimens for coagulation studies d)Specimens for coagulation studies followed by sterile blood culture specimens e) Specimens that require EDTA followed by specimens for coagulation studies - c) Sterile blood culture specimens followed by specimens for coagulation studies For a 3-hour GTT, the Iaboratory assistant/technician would collect: a) a hour blood sample, a 2-hour blood sample, and a 3-hour blood sample. b)a fasting blood sample, a 1-hour blood sample, a 2-hour blood sample, and a 3-hour blood sample. c) a fasting blood and urine sample, a 1-hour blood sample, a 2-hour blood sample, and a 3-hour blood sample. d)a fasting blood and urine sample, a -hour blood and urine sample, a 2- hour blood sample, and a 3-hour blood sample. e) a fasting blood and urine sample, a 1-hour blood and urine sample, a 2- hour blood and urine sample, and a 3-hour blood and urine sample. - c) a fasting blood and urine sample, a 1-hour blood sample, a 2-hour blood sample, and a 3-hour blood sample. The laboratory rejects a specimen for INR testing because the specimen is in an evacuated tube with a light blue top and the specimen is: a) separated. b)spun down for 10 minutes c) refrigerated for 1 hour before being tested. d)filled three-quarters full. e) delayed in transit for 6 hours. - e) delayed in transit for 6 hours. Laboratory specimens are labelled with all of the following EXCEPT: C) follow standard decontamination procedures for spills D) place the contained package in a shielded storage area. E) survey the area where the package has been and clearly mark all contaminated spots - B) notify local authorities of the leak and its extent. Which of the following clinical signs indicates that a person is choking and has complete airway obstruction? A) Coughing or gagging B) Noisy or painful breathing C) No chest movement D) Inability to speak E) Decreased level of consciousness - C) No chest movement The laboratory assistant/technician must wear gloves to do all of the following, EXCEPT: A) handle clinical specimens. B) handle human tissue specimens. с) engage in procedures that involve direct skin contact with biological specimens. D) process clinical specimens. E) perform phlebotomies. - E) perform phlebotomies. Which risk is NOT associated with the following WHMIS symbol? A) May cause environmental damage from fumes B) May react with water C) May be chemically unstable D) May burn unexpectedly E) May explode if exposed to shock or heat - A) May cause environmental damage from fumes Which hazard is matched to the hazard symbol below? A) May cause permant injury or death в) May release toxic vapours C) May react with water D) May ignite spontaneously E) Includes fluids containing toxic products - A) May cause permant injury or death Where there is risk of aerosol production, Level 2 containment requires a minimum of: A) Level 1 biosafety cabinet. B) Level 2 biosafety cabinet C) Level 3 biosafety cabinet D) Laminar flow hood E) No special hood required - A) Level 1 biosafety cabinet. According to the Clinical and Laboratory Standards Institute (CLSI) which type of water should be used for routine laboratory assays? A) Filtered water B) Distilled water C) De-ionized water D) Double distilled water (DDH,O) E) Clinical Laboratory Reagent Water (CLRW) - E) Clinical Laboratory Reagent Water (CLRW) An error was made in preparing a commercial control. Patients results will be: A) inaccurate. B) imprecise. C) inaccurate but precise. D) accurate but imprecise E) not affected. - E) not affected. What are the upper and lower limits of acceptable results for a control, if the mean is 130 g/L and the standard deviation is 2.0? A) 122-138 g/L B) 123-137 g/L C) 124-136 g/L D) 125-135 g/L E) 126-134 g/L - E) 126-134 g/L The term 'bias' is defined as: A) the total number of values used. B) an average of calculate values. C) measure of the departure from accuracy. D) a manufacturer recommended value. E) the allowable limits in which a control value is acceptable. - C) measure of the departure from accuracy. A volumetric flask that is calibrated at 20°C would be expected to contain more volume if the: A) laboratory temperature is 18°C B) liquid is refrigerated before measurement. C) liquid is heated before measurement. D) flask is refrigerated before measurement. E) flask is at room temperature before measurement. - C) liquid is heated before measurement. E) Hematocrit - E) Hematocrit Which of the following describes an abnormal increase in the number of white blood cells? A) Polycythemia B) Thrombocytosis c) Leukopenia D) Leukocytosis E) Thrombocytopenia - D) Leukocytosis A urine specimen for routine bacteriology would be collected in a container that contains: A) acetone. B) alcohol. c) fixative. D) transport media E) unfixed. - E) unfixed. What type of atmosphere is required for strict anaerobic growth? A) Reduced O2 B) No O2 c) Reduced CO, 2 D) Elevated CO2 E) NO CO2 - D) Elevated CO2 When a CSF specimen is collected for routine bacteriological studies, which of the following tubes can be used? A) Lavender B) Light blue C) Black D) Red E) Dark green - D) Red Which of the following incubation conditions is used to grow common pathogenic Campylobacter sp. from stool specimens? A) Microaerophilic, 42° B) Microaerophilic, 35-37°C c) Anaerobic, 42°C D) Aerobic, 35-37°C E) Anaerobic, 35-37°C nurnoco of troncnort - A) Microaerophilic, 42° Which of the following is the purpose of transport medium that is used in the shipment of microbiology specimens? A) Inhibit bacterial growth B) Enhance bacterial growth c) Sustain bacterial growth D) Fixation of the specimern E) Nourish the bacteria in the specimen - c) Sustain bacterial growth The cyanmethemoglobin method for the determination of hemoglobin will NOT measure: A) carboxyhemoglobin. B) methemoglobin. C) oxyhemoglobin. D) sulfhemoglobin. E) hemoglobin S. - D) sulfhemoglobin A muscle artifact during an ECG can be identified by: A) wandering baseline. B) an erratic baseline. C) an interrupted baseline. D a short, spiky baseline. E) a flat, horizontal baseline. - B) an erratic baseline. A Holter monitor is a NOT used for: A) assessing cardiac risk prior to surgery. B) evaluating patients with unexplained syncope. C) discovering intermittent cardiac dysrhythmia. D) calculating the effectiveness of antidysrhythmic medications. E) rating the effectiveness of an artifical pacemaker. - A) assessing cardiac risk prior to surgery. After the Holter monitor has been properly connected to the patient, the laboratory assistant/technician must properly instruct the patient to do which of the following? A) Lie still and not talk while the procedure is taking place. B) Remove all leads prior to bathing. c) Keep an accurate diary of activities, emotional states and symptoms. D) Start an exercise program that includes cardiovascular activity. E) Remove the monitor and return to facility after 24 hours. - c) Keep an accurate diary of activities, emotional states and symptoms. An electrocardiogram is accurately described as a test that: A) Records the activity of the heart B) Uses ultrasound waves to examine the heart c) Shows the flow of blood to the heart muscle D) Uses a small device called a transducer E) Consists of two catheters inserted into the arterial system - A) Records the activity of the heart Which electrodes are used for Lead lI? A) LA and LL B) RA and LL C) LA and RA D) RL and LL E) RA and RL - B) RA and LL Two stain solutions routinely used in the Papanicolaou stain are A) Hematoxylin and Congo Red B) Orange G and Prussian Blue C) Hematoxylin and Eosin-Azure (EA) D) Methylene Blue and Bizmarck Brown Y E) Fast Green FCF and Sudan Black - C) Hematoxylin and Eosin-Azure (EA) Cytology smears must remain in the fixative for: A) 3 min. B) 5 min. C) 10 min. D) 15 min. E) 30 min. - D) 15 min. When using thermometers which statement is NOT correct? A) The size is important. B) Calibration must be verified. c) Either alcohol or mercury is used as the indicator. D) Temperature is monitored. E) Records must be kept. - c) Either alcohol or mercury is used as the indicator. Distilled water meets the specifications for all of the following EXCEPT: A) Type II water B) CO no microbiological organisms. C) no carbon dioxide. D) Type IIl water. An electrocardiograph machine is used to record the A) electrical activity of the brain. B) electrical activity of the heart. C) electrical activity of the lungs. D) presence of electrolytes. E) electrical activity of the electrodes. - B) electrical activity of the heart. An ECG is performed on a patient by connecting leads to the patient's A) Chest, arms and legs B) Head, arms and legs C) Head, neck and arms D)Feet, neck and arms E) Feet, head and arms - A) Chest, arms and legs An ECG requires that electrodes are attached to the patient's skin on which of the following? A) Chest, head and abdomen B) Chest, abdomen and legs C) Chest, arms and legs D Arms, head and abdomen E) Arms, legs and head - C) Chest, arms and legs What does an electrocardiogram or ECG record? A) Electrical activity of the brain B) Electrical activity of the heart C) Flow of blood through the brain D) Flow of blood through the heart E) Sounds produced by the heart - B) Electrical activity of the heart At what temperature is Campylobactor agar incubated? A) 30°C B) 35°C c) 370C D) 40°C E) 42°C - E) 42°C What is the purpose of the catalyst in an anaerobic jar? A) Keeps excessive condensation from forming B) Combines residual oxygen with hydrogen to form water C) Keeps toxic levels of carbon dioxide from building up D) Provide a humid atmosphere for the bacteria E) None of the above - B) Combines residual oxygen with hydrogen to form water At what temperature is sheep blood added to molten agar to produce chocolate agar? A) 40-45°C B) 50-55°C c) 60-65°C D) 75-80°C E) 85-90°C - D) 75-80°C A swab that has touched the surface of a glass slide is considered: A) inoculated. B) streaked. C) plated D) cultured. E) non-sterile. - E) non-sterile. What is the maximum time a urine sample can be refrigerated without affecting bacterial flora? A) 2 hours B) 5 hours C) 8 hours D) 12 hours E) 24 hours - E) 24 hours Which of the following laboratory tests can be taken using an EDTA vacutainer tube? A) INR B) Electrolytes c) Glucose D) Fibrinogen E) ESR - E) ESR An elevated hemoglobin result may be caused by: A) lipemia in the CBC tube. B) the use of a citrate tube. C) the use of an EDTA tube. D) an inadequately filled CBC tube. E) a sample collected from an arm with an IV - A) lipemia in the CBC tube. What is the optimum pH of the phosphate buffer utilized in the Romanowsky stain? A) 6.0 B) 6.4 C) 7.0 D) 7.2 E) 7.4 - B) 6.4 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: A) 1.5 hours. B) 3 hours c) 6 hours. D) 12 hours. E) 24 hours. - E) 24 hours. The shipment of dry ice is considered minor danger and falls within packing group: A) 1 B) 2 C) 3 D) 4 E) 5 - C) 3 Which of the following is the anticoagulant of choice for blood gas studies? A) Sodium citrate B) Lithium heparin c) Ammonium oxalate D) EDTA E) Sodium oxalate - B) Lithium heparin Which of the following should NOT be ingested when a patient is collecting a sample for occult blood? A) Vitamin D В) Acetaminophen c) Apples D Chicken E) Alcohol - E) Alcohol What does FOB test detect? A) Viruses B) Glucose c) Cancer A) once. B) twice. с) three times. D) four times. E) five times. - E) five times While drawing blood, the phlebotomist should release the tourniquet: A) just before the needle is inserted into the arm. B) prior to the withdrawal of the last tube. c) five minutes after the needle has been removed. D) as soon as possible after the blood begins to flow. E) as soon as a suitable vein has been identified. - B) prior to the withdrawal of the last tube. Which of the following vacutainer additives causes the most carryover problems? A) EDTA B) Lithium heparin C) Sodium citrate D) Sodium heparin E) Potassium oxalate - A) EDTA In which class of dangerous goods are radioactive materials placed? A) 8 B) 7 c) 5 D) 3 E) 2 - B) 7 Protection from non ionizing radiation includes: A) goggles and gloves. B) lead shield. c) biosafety cabinet. D) fume hood. E) all of the above. - A) goggles and gloves When sending out a category B frozen sample, all the following are needed EXCEPT: A) a Class 6.2 sticker B) a Class 9 sticker. c) the weight of dry ice used. D) a shippers declaration. E) a UN number. - D) a shippers declaration. When dangerous goods are prepared for transporting, the package must be marked with all of the following EXCEPT the: A) UN number. B) date the sample(s) shipped. C) amount of dry ice in kilograms. D) quantity of the sample(s) in grams. E) name of the person shipping the sample(s) - C) amount of dry ice in kilograms. If radioactive capsules or beads are spilled, they may be: A) sprinkled with desiccant. B) picked up with forceps. C) picked up with tissue. D) picked up with a regular broom and dustpan. E) left if spill is small, as capsules/beads will dissolve. - B) picked up with forceps. The Transportation of Dangerous Goods Regulation requires all of the following when shipping potentially dangerous substances, EXCEPT: A) a completed "shippers declaration" document that accompanies a package. B) emergency contact information. C) specific package labeling and required hazard symbols. D) an inclusion of "dry ice" in a sealed container. E) specific packaging that consists of leak-proof containers. - D) an inclusion of "dry ice" in a sealed container. What should be the laboratory assistant/technician's first response to a needle stick injury? A) Apply pressure to stop any bleeding. B) Visit the nearest hospital emergency room. C) Report the incident to the inmmediate supervisor. D) Obtain the patient's medical history E) Decontaminate the puncture site with an appropriate antiseptic. - E) Decontaminate the puncture site with an appropriate antiseptic. The infectious cycle includes all of the following, EXCEPT the: A) portal of entry B) mode of transmission. C) reservoir host. D) type of pathogen. E) susceptible host. - D) type of pathogen Infectious substances are divided into how many risk groups? A) 10 B) 7 C) 4 D) 3 E) 2 - C) 4 What percentage of values fall within +/- 2 SD of a mean in a normal Guassian distribution? A) 0.25 B) 0.5 c) 0.95 D) 0.75 E) 0.99 - c) 0.95 The laboratory assistant/technician should dipose of the needle upon completion of a venipuncture by: A Recapping the needle B) Wrapping the uncapped needle in a autoclave bag C) Discarding it in the nearest garbage can D) Placing the uncapped needle and plastic holder in a ridgid biohazard container E) Recapping and placing in ridgid biohazard container - D) Placing the uncapped needle and plastic holder in a ridgid biohazard container When using thermometers which statement is NOT correct? A) The size is important. B) Calibration must be verified. c) Either alcohol or mercury is used as the indicator. D) Temperature is monitored. E) Records must be kept. - c) Either alcohol or mercury is used as the indicator. The acronym 'LD' refers to an element of which of the following profile types? A) Pancreatic B) Cardiac C) Electrolyte D) Lipid E) Drug screen - B) Cardiac Which risk is NOT associated with the following WHMIS symbol?