final 120

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139shay
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final 120
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2012-12-01 21:42:42
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final 120
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  1. what does CBC stand for
    complete blood count
  2. which tube or tubes are used in collection of specimen for CBC and what test is done
    tubes: lavender , yellow

    whole blood hematology cell count and molecular diagnostic testing , blood smears
  3. safety devices
    are now required by law. activated by a one hand thumb mechanism or by pressing against a hard surface.
  4. sites used when performing venipuncture
    the veins most commonly used when performing venipuncture are in the antecubital space of the arm.

    median cubital vein: most commonly used

    cephalic vein: second most commonly used on the side with the thumb use with obesed patient

    basilic vein: last choice located on the little-finger near brachial artery
  5. what happens when blood is centifuged
    the cells pack into the bottom of the tube = sediment 

    buffy coat: middle layer of white blood cells and platelets

    top liquid layer is the: plasma = supernatant
  6. why would blood be rejected when sent for analysis to the lab
    hemolysis
  7. what is syncope
    fainting
  8. things that could go wrong when doing venipuncture
    • hematomas
    • failure to obtain blood
    • hematoma
    • hemolysis
    • excessive bleeding
    • neurological problems
  9. what is the standard of depth of a heel stick on an infant
    no deeper than 2mm on medial or lateal plantar surface of the heel of the foot
  10. what does NCCLS stand for
    national committee for clinical laboratory standards
  11. what is the use of a tourniquet
    used to make the vein more prominent and easier to puncture
  12. what is hematology
    the study of the visible cellular components in the bloodstream and bone marrow
  13. what is coagulation studies
    except CLIA-waived protime

    blood cultures , and erythrocyte sedimentation rate testing cannot be analyzed by the capillary puncture procedure
  14. why would one use a butterfly syringe or evacuated method to draw blood
    used one very small veins those in the hand or pediatric draws
  15. facts about bacteria and urine
    • bacteria are normally not found in the urine the presence of bacteria could indicate either contamination or a UTI.
    • bacteria reproduce rapidly , very tiny , must be viewed on high power , appear rod shaped Bacilli or round shaped Cocci


    • WBC
    • Yeast
    • Parasites
    • Sperm
    • Mucus
    • Artifacts
  16. when and why would one perform a capillary puncture
    when only a small amount of blood is needed

    when the patient has burns , skin irritation or small or fragile veins

    person with cancer , geriatric or obese patient whose blood can be difficult to draw
  17. when should capillary puncture should NOT be used
    if the test requires a large amount of blood

    if the patient has poor peripheral circulation

    if interstitial fluid could dilute the test causing inaccurate results
  18. calcium carbonate or leucine crystals in urine
    patients who have severe liver disease
  19. uric acid crystals in the urine
    in patients with leukemia who are receiving chemotherapy and patients with gout
  20. calcium oxalates in urine
    renal calculi

    foods high in oxalic acid tomatoes , asparagus and ascorbic acid

    acid urine
  21. which crystals resemble coffin lids
    triple phosphate crystals alkaline urine
  22. red blood cells in urine
    hematuria is a abnormal presence of RBCs in the urine. RBCs are round , bioconcave , non nucleated , colorless discs.

    if hemolyzed the will not be seen on the microscopic exam.

    bleeding , damage to the glomerulus and vascular injury are associated with the presence of RBCs in the urine
  23. what is quality control
    takes place in the analytical phase . it uses samples with known values that are tested along with the patient samples to establish the RELIABILITY , ACCURACY and PRECISION of a specific test

    to ensure the test kit or test instrument is producing the correct results consistently
  24. what is quality assurance
    the overall process to aid in improving the reliablity , efficiency and quality of all laboratory test in general.

    measures the effectiveness laboratory's policies and procedures in producing and documenting the test results.
  25. what quality control data should be recorded
    the sample results are recorded on a dated log sheet
  26. qualitative test
    testing presence or absence of an analyte
  27. semiquantitative
    determines the appro=ximates quantity of an analyte
  28. quantitative test
    have numerical value
  29. calibration
    the process of setting the instrument's optics to the test reagents or test devices that will be uses
  30. optics
    process of confirming that the light source and light sensor in optical analyzers are working properly
  31. what is a panel or profile
    a series of test associated with a particular organ or disease
  32. the ratio of dilute of bleach for disinfection work surfaces and or spills
    10% bleach

    1:10 bleach solution
  33. biohazard colors
    blue: health hazard

    red: flammability

    yellow: reactivity

    white: need for PPE
  34. weight
    gram

    G , g , or gm
  35. volume
    liter

    L or l
  36. lenght
    meter

    M or m
  37. temperature
    centigrade

    C
  38. Deci-
    d

    1/10

    0.1
  39. Centi-
    c

    1/100

    0.01
  40. Milli-
    m

    1/1000 or 0.001
  41. Micro-
    u or mc

    1/1,000,000
  42. milliter is used to measure
    volume of a liquid as known as cubic centimeter
  43. milligram is use to measure
    analytes measured in a liquid such as blood
  44. different deparment of a lab
    specimen collection and processing

    hematology

    chemistry

    immunology/immunohematology

    microbiology

    pathology

    toxicology
  45. homeostasis
    steady state of internal chemical and physical balance
  46. what is clinitest
    is a confirmatory test to determine if other sugars or reducing substances in addition to glucose are present in urine
  47. what hemolysis
    red cell breaking open and releasing hemoglobin
  48. epithelial cells
    lining the vagina

    lower portion or male and female urethra

    renal pelvis, bladder , caudate
  49. chemical strip
    glucose: 30 seconds not found in urine

    bilirubin: 30 seconds not found in urine

    ketone: 40 seconds not found in urine

    specific gravity: 45 seconds  1.000-1.030

    blood: 60 seconds not found in urine

    pH: 60 seconds 5.0-8.0

    protein: 60 seconds not found in urine

    urobili: 60 seconds 0.2-1.0 EU

    nitrite: 60 seconds not found in urine

    leukocytes: 2 minutes not found in urine

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