pulm diagnostic test

  1. 3 primary sites for obtaining an art blood sample
    • radial
    • brachial
    • femoral
  2. sites u can obtain in a blood gas sample from an infant
    • cap samples/ heel sticks
    • umbilical art lines
    • pulm art line/ swan ganz catheter
  3. cap gases should not be used to monitor
    oxygen therapy
  4. first choice for peripheral art puncture is the ___ artery
  5. test should be performed prior to obtaining a sample from the radial artery
    MODIFIED allens test
  6. the hand should pink up within ___ sexonds after releasing the ___ artery
    • 1-2 seconds
    • ulnar
  7. air bubbles effects on PaCO2 and PaO2
    • decrease paco2
    • increase pao2
  8. point of care monitoring refers to any type of monitoring done at the
  9. interpretation of aa gradient -- 25-66 mm on 100% =
    normal value (normal value varies directly with pts fio2)
  10. 66-300 mm =
    v/q mismatch
  11. > 300 mm =
  12. Ca02= arterial oxygen content

    normal value
    17-20 %
  13. Cv02 = mixed venous o2 content

    normal value
  14. C (a-v) o2 = art ven o2 content difference

    normal value
  15. ARDS is indicated when the P/F ratio is
    <200 torr
  16. modified fick equation is used to calculate
    cardiac output when o2 consumption and o2 content difference are unknown
  17. QT normal value
    4-8 l/min
  18. Qs/Qt shunt equation

    normal value
  19. spirometers measures
    • volumes
    • flow rates
  20. which type of spirometer is considered the most accurate
    water sealed spirometers (collins)
  21. pneumotachometer measures
  22. what other terms are used for devices that measure flow
    • wright respirometer
    • fleish
  23. accuracy of peak flow measurement depends on
    pt effort
  24. describe how to id a pts personal best peak flow measurement
    • record every day, morning afternoon
    • 2-3 days a week
    • when asthma is under control
  25. describe how to measure a pts peak flow value
    blow out as hard and as fast as poss
  26. plethysmograph measures
    • thoracis gas vol TGV
    • functional residual capacity FRC
  27. what is the advantage of using a body box for PFT measurements
    measures FRC in a pt w/ obstructive disease
  28. what dos the kymograph record
    plots volume against time
  29. what does the X-Y recorder plot
    volume against flow
  30. what standard must all equipment meet
    ats - ers
  31. volumes and leak tests are performed by using
    large volume syringe (super syringe)
  32. what is the standard syringe volume
    3.0 liters
  33. flow calibration is done useing a
  34. the RT is unable to vcalibrate a galvanic cell oxygen analyzer. what is the next step
    change the fuel cell
  35. what should the therapist do if she is unable to calibrate a polagraphic ocygen analyzer
    • change battery
    • check electrolyte level (refill if low)
  36. galvanic cell and polarographic oxygen analyzers directly measure ____ and disly _____
    • partial pressure
    • fio2 as %
  37. gas choromatograph analyzer can measure what gases
    • ne
    • o2
    • n2
    • co
  38. advantages using a mass spectrometer
    can analyze several gases at one time and is very accurate
  39. infrared absorption analyzer is used to measure what two gases
    • carbon dioxide
    • carbon monoxide
  40. helium analyzers work on what principle
    thermal conductivity
  41. nitrogen analyzers are also known as
    geisler tube ionizer
  42. what does a mercury barometer measure
    barometer pressure
  43. when using a mercury barometer, the pressure is measured from the __ of the meniscus
  44. if water is in the barometer instead of mercury, where is the measurement assessed
    bottom of the meniscus
  45. consist of a sealed metal container with a gear or spring mechanism that responds to changes in pressure
  46. what is the maximum inspiratory pressure used to assess
    readiness to wean in vent pts
  47. what is the minimum acceptable value
    <-20 cmh20 indicates muscle weakness
  48. what does MEP measurement evaluate
    • pt ability to maintain an airway and clear secretion
    • ability to cough efectively
  49. what is the minimum acceptable value for MEP
    < 40 cmh20
  50. how should you instruct a pt to perform a VC manauver
    max ins followed by a max esh without force
  51. vc maneuver will provide the important ____ used to id restrictive disease
  52. list 5 volumes that are measured when a vc is recorded
    • vt
    • irv
    • erv
    • ic
    • vc
  53. a decreased ____ is an indicator of ____ lung disease
    • vc
    • restrictive
  54. a forced vital capacity maneuver will provide ____ needed to measure ___ disease
    • volume
    • obstructive
  55. list of flowrates that can be measured when a FVC is ordered
    • fev 1.0
    • fef 200-1200
    • fef 25-75
    • pefr
  56. what is the best flowrate to use to monitor obs disease
    fev 1.0
  57. what is the minimum acceptable value for fev1/fvc ratio
  58. if the fev1 is decreased and the fev1/fvc ratio is normal, what is the correct interpretation
    pt has restrictive disease only
  59. largest vol and rate that can be breathed per min by voluntary effort is known as
    max voluntary venilation MVV
  60. mvv should be performed for ____
    12-15 seconds
  61. MVV measures the
    muscular mechanics of breathing
  62. pre and post bronchodilator testing is used to measure the
    reversibility of an obstructive pattern
  63. what minimum increase in FEV1 indicates that the pt responded to the bronchodilator
    • 12%
    • 200 ml
  64. 3 methods available to determine FRC
    • he dilution (closed method)
    • n2 wash out (open method)
    • plethsmography/ body box (most accurate)
  65. predicted valures are based on
    • age
    • height
    • sex/gender
  66. normal PFT
  67. list the obstructive disease
    • cystic fibrosis
    • bronchitis
    • asthma
    • bronchiotasis
    • emphysema
  68. list the restrictive disease
    its everything else besides the C-Babe
  69. bronchoscopy is a procedure that allows the therapist to visualize the
    • trachea
    • bronchi
  70. bronch can be performed for both __ and ___ reasons
    • diagnostics
    • therapeutics
  71. diagnostics examples
    • foreign body
    • malignancy
    • bronchial washings
    • hemoptysis
    • persistent prob
  72. therapeutics examples
    • foreign body obstruction
    • secretion removal
    • bronchial lavage
    • stenosis
    • atelectasis
  73. pt who is suspected of having a neck fracture would be best intubated by
    nasal intubation w/ bronchoscope
  74. most common complication is ___ qhwn rhw nAl eourw ia uaws
    mild epistaxis - nasal bleeding
  75. what is possible cause when taking tissue samples while using bronchoscope
  76. what is used to control gag/cough reflex and prevent laryngospasm
    • lidocaine
    • benzocaine
    • novacaine
    • cetacaine

    any CAINE
  77. intubation will not allow visualization of the
    true vocal cords
  78. pts recieving continuous vent will need a special adapter for the scope, which is called
    bodaii adapter
  79. what are the further precautions that should be taken for pts on mech vent
    • topical anesthetics
    • inc fio2 to 100
    • inc high pressure alarm
  80. decontamination of a bronchoscope is best done with
    alkaline gluteraldehyde -- cidex
  81. therapist responsibilities for bronch
    • patency of scope lume
    • optical fibers
    • o2
    • suction regulator
    • canirster
    • tubing- occlude end of scope to check suction
Card Set
pulm diagnostic test
pulm diagnostic test