SUMMATIVE EXAM #4

30問 • 1年前

問題一覧

A decreased leukocyte alkaline phosphatase (LAP) score is seen in: A. Polycythemia vera B. Chronic myelogenous leukemia C. Leukemoid reactions D. Acute myelogenous leukemia

B. Chronic myelogenous leukemia

The result for a leukocyte alkaline phosphatase stain (LAP) stain is: A. Normal if the result is 32 to 182 with fast blue RR dye B. Positive, if 10 to 50% hemolysis present C. Normal, if <10% of cells exhibit hemoglobin F in adults D. Normal in newborns if the result is 70 to 90%

A. Normal if the result is 32 to 182 with fast blue RR dye

The Philadelphia chromosome is formed by a translocation between: A. Chromosome 22 and chromosome 9 B. Chromosome 21 and chromosome 9 C. Chromosome 21 and chromosome 6 D. Chromosome 22 and chromosome 6

A. Chromosome 22 and chromosome 9

Molecular techniques are being used to detect abnormalities of: A. Erythrocytes B. Leukocytes C. Some coagulation factors D. All of the above

D. All of the above

The first inherited hematologic disorder to be diagnosed using molecular biologic assay was: A. Hemophilia A B. Factor V Leiden C. Sickle cell anemia D. CML

C. Sickle cell anemia

PCR testing is useful in: A. Forensic testing B. Genetic testing C. Disease diagnosis D. All of the above

D. All of the above

The method considered to be the “gold standard” of molecular methods is: A. DNA sequencing B. Southern blot C. Northern blot D. Dot blot

A. DNA sequencing

The major intended purpose of the laboratory safety manual is to: A. Protect the patient and laboratory personnel B. Protect laboratory and other hospital personnel C. Comply with local health and state regulatory requirements D. Comply with OSHA regulations

A. Protect the patient and laboratory personnel

The most important step in phlebotomy is: A. Cleansing the site B. Identifying the patient C. Selecting the proper needle length D. Using the correct evacuated tube

B. Identifying the patient

Which of the following skin puncture areas is (are) acceptable for the collection of capillary blood from an infant? A. Previous puncture site B. Posterior curve of the heel C. The arch D. Medial or lateral plantar surface

B. Posterior curve of the heel

Vein of choice for performing a venipuncture is the: A. Basilic, because it is the most prominent vein in the antecubital fossa B. Cephalic or accessory cephalic, because it is the least painful site C. Median or median cubital, because it has the lowest risk of damaging nerves in the arm D. One of the hand veins, because they are most superficial and easily accessed

C. Median or median cubital, because it has the lowest risk of damaging nerves in the arm

The venipuncture needle should be inserted into the arm with the bevel facing: A. Down and an angle of insertion between 15 and 30 degrees B. Up and an angle of insertion less than 30 degrees C. Down and an angle of insertion greater than 45 degrees D. Up and an angle of insertion between 30 and 45 degrees

B. Up and an angle of insertion less than 30 degrees

A blood sample is needed from a patient with IV fluids running in both arms. Which of the following is an acceptable procedure? A. Any obtainable vein is satisfactory. B. Obtain sample from above the IV site. C. Obtain sample from below the IV site with special restrictions. D. Disconnect the IV line. E. Do not draw a blood specimen.

C. Obtain sample from below the IV site with special restrictions.

When encountering a patient with a fistula, the phlebotomist should: A. Apply the tourniquet below the fistula B. Use the other arm C. Collect the blood from the fistula D. Attach a syringe to the T-tube connector

B. Use the other arm

An unconscious inpatient does not have an ID band. The name on an envelope on the patient’s nightstand matches with the requisition. What should you do? A. Ask the nurse to verify the patient’s ID and collect the specimen. B. Complete the required procedure and then file an incident report. C. Do not start any procedure until the nurse attaches an ID bracelet. D. Make a computer entry to will alert other phlebotomists of the issue

C. Do not start any procedure until the nurse attaches an ID bracelet.

If a blood specimen is spilled on a laboratory bench or floor area, the first step in cleanup should be: A. Wear gloves and a lab coat B. Absorb blood with disposable towels C. Clean with freshly prepared 1% chlorine solution D. Wash with water

B. Absorb blood with disposable towels

What is the best way to clean up blood that has dripped on the arm of a phlebotomy chair? A. Absorb it with a gauze pad and clean the area with disinfectant. B. Rub it with a damp cloth and wash the area with soap and water. C. Wait for it to dry and then scrape it into a biohazard container. D. Wipe it with an alcohol pad using an outward circular motion

A. Absorb it with a gauze pad and clean the area with disinfectant

Which characteristic is inaccurate with respect to the anticoagulant K3 EDTA? A. Removes ionized calcium (Ca2+) from fresh whole blood by the process of chelation B. Is used for most routine coagulation studies C. Is the most commonly used anticoagulant in hematology D. Is conventionally placed in lavender-stoppered evacuated tubes

B. Is used for most routine coagulation studies

In which of the following laboratory situations is a verbal report permissible? A. When the patient is going directly to the physician’s office and wants to have the report available B. When the report cannot be found at the nurse’s station C. When preoperative test results are needed by the anesthesiologist D. None of the above

D. None of the above

If a blood smear is too long, the problem can be resolved by: A. Decreasing the angle of the pusher slide B. Increasing the angle of the pusher slide C. Using a larger drop of blood D. Pushing the slide slower in smearing out the blood

B. Increasing the angle of the pusher slide

If a blood smear stains too red on microscopic examination of a Wright-stained preparation, possible causes include that: A. The staining time was too long B. The stain was too basic C. The buffer was too acidic and the exposure time was too short D. The buffer was too basic and the exposure time was too long

C. The buffer was too acidic and the exposure time was too short

Hematology and hemostasis laboratory quality assurance relies on basic statistics describing: 1. Measures of central tendency 2. Measures of dispersion 3. Measures of probability A. 1 and 2 B. 1 and 3 C. 2 and 3 D. 1, 2 and 3

A. 1 and 2

A. Within ±1 standard deviation of the mean B. Between 1 and 2 standard deviations of the mean C. Within ±2 standard deviations of the mean D. Within ±3 standard deviations of the mean

C. Within ±2 standard deviations of the mean

Delta checks identify: A. Random error B. Shift C. Trend D. Gross error

D. Gross error

The laboratory procedure manual does not need to include: A. Test method, principle of the test, and clinical applications B. Specimen collection and storage procedures C. The name of the supplier of common laboratory chemicals D. QC techniques, procedures, normal values, and technical sources of error

C. The name of the supplier of common laboratory chemicals

The most important practice in preventing the spread of disease is: A. Wearing masks during patient contact B. Proper hand washing C. Wearing disposable laboratory coats D. Identifying specimens from known or suspected HIV- and HBV-infected patients with a red label

B. Proper hand washing

Where should alcohol and other flammable chemicals be stored? A. In an approved safety can or storage cabinet away from heat sources B. Under a hood and arranged alphabetically for ease of identification in an emergency C. In a refrigerator at 28 C to 88 C to reduce volatilization D. On a low shelf in an area protected from light

A. In an approved safety can or storage cabinet away from heat sources

. A cloudy and turbid CSF specimen is most commonly caused by: A. Increased fibrinogen B. Subarachnoid hemorrhage C. Subarachnoid hemorrhage, more than 12 hours after the bleed D. Increased number of leukocytes

D. Increased number of leukocytes

A xanthochromic (yellow color) CSF specimen is most commonly caused by: A. Increased fibrinogen B. Subarachnoid hemorrhage C. Subarachnoid hemorrhage, more than 12 hours after the bleed D. Increased number of leukocytes

C. Subarachnoid hemorrhage, more than 12 hours after the bleed

A grossly bloody CSF specimen is most commonly caused by: A. Increased fibrinogen B. Subarachnoid hemorrhage C. Subarachnoid hemorrhage, more than 12 hours after the bleed D. Increased number of leukocytes

B. Subarachnoid hemorrhage

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology