Study Guide 4.txt

  1. Following the HIPPA guidelines, you may give a patient's medical information to another employee:

  2. If the mA of a 2 second brain scan is doubled and all other parameters are not changed, the dose is:

  3. Which of the following is the complete name of the laboratory test known at PTT?

  4. Renal function refers to which of the following organs?

  5. In all states, patients are required by law to sign consent forms for the following reason:

  6. Which of the following values for prothrombin time are considered outside the normal range?
    1. 12 seconds
    2. 20 seconds
    3. 30 seconds

  7. _____ mm Hg is within the normal diastolic pressure range for adults.

  8. The result of which of the following lab tests may impact the decision to administer IV contrast media?
    1. BUN
    2. creatinine
    3. PT

  9. On a multi-row detector scanner, a radiation penumbra may be found:

  10. On a single-row detector scanner, which of the following does NOT decrease the patient dose?

  11. Whcih of the following is the correct action to take if a patient arrives with obvious head trauma, expecting a CT of the brain, but the paperwork request a pelvic CT?

  12. During a CT scan, the patient must be monitored:

  13. Which of the following does NOT minimize the radiation dose to the patient?

  14. For x-ray radiation, whcih of the following is TRUE?

  15. A normal pulse rate for an infant is _____ BPM.

  16. The most important consideration in the care of an unconscious patient is to ensure that:

  17. Which of the following statements is TRUE if the patient history was taken at the time of scheduling?
    1. a claustrophobic patient can arrive for the scan prepared with a perscription sedative
    2. time can be saved the day of the exam by skipping the screening process
    3. if it has been determined that hte patient has no prior illness or condition, monitoring is unnecessary

  18. The human embro/fetus is most sensitive to radiation:

  19. Which of the following could be the dose experienced by the pituitary from a typical CT brain scan?

  20. If there is no overlap or gap between adjacent slices of a CT scan, CTDI ____ MSAD.

  21. A normal adult has _____ respiration per minute.

  22. A blood urea nitrogen level of _____ mg/dl is considered outside the normal range.
    1. 10
    2. 18
    3. 32

  23. Which of the following tests is NOT an indication of renal function?
    1. BUN
    2. creatinine
    3. PTT

  24. Which of the following conditions may be an indication NOT to use IV contrast media?
    1. previous serious reaction to contrast media used during another diagnostic procedure
    2. allergy to iodine
    3. renal impairment

  25. Which of the following is NOT a typical indication of shock?

  26. Platelets are small:

  27. Which of the following reduces patient dose at the expense of increasing the apparent noise in the image?

  28. A 25 year old female is scheduled for a CT scan of the sinuses. She is not absolutely certain that she is not pregnant and it has been three weeks since her last menstrual period. Which of the following is the best course of action?

  29. Which of the following is a possible long-term effect of repeated exposure to radiation?
    1. cataracts
    2. cancer
    3. decrease in life expectancy

  30. CPR must be administered to a cardiac arrest victim within a maximum of _____ minutes(s) before there is a risk of brain damage.

  31. Which is NOT a standard infection control precaution to use with all patients?

  32. Which of the following statements is TRUE?
    1. respirators are not allowed in the CT suite
    2. pulse oximeters are allowed in the CT suite
    3. the patient should be removed from the CT suite to treat cardiac arrest

  33. A patient about to get a scan of her sinuses may wear:

  34. Which of the following is TRUE regarding a radiation penumbra?
    1. it occurs because the collimator is broken
    2. it is radiation that extends outside of the imaging region
    3. it is accounted for in the calculation of the MSAD

  35. A creatinine level of 3.1 mg/dl indicates the:
    1. kidneys are not removing waste products from the urine
    2. patient is not a good candidate to receive IV contrast media
    3. value is below the normal range

  36. Making up the ARRT Standard of Ethics are the Code of Ethics, which is _____, and the Rules of Ethics, which are _____.

  37. When reviewing the images from a helical CT scan, a subtle, suspicious area of possible pathology is noticed. What could be done to better visualize the suspicious area WITHOUT increasing the dose to the patient?
    1. re-scan the region using thinner slices
    2. re-scan the region using a lower pitch
    3. retrospectively reconstruct the slices so that they overlap

  38. Which of the following vital signs is considered abnormal?

  39. To modify a standard CT protocol so that is is appropriate for child, which of the following should be decreased?
    1. pitch
    2. kVp
    3. mAs

  40. Which of the following may result from exposing an embryo to x-ray radiation?
    1. mental retardation
    2. miscarriage
    3. deformities

  41. What are the lab values for a patients BUN?

    B. 5 to 25 mg/dl
  42. What are the lab values for a patients creatine?

    A. 0.6 to 1.7 mg/dl
  43. What are the lab values for a patients GFR?

    C. 95 to 120 mL/min/1.73m2
  44. What does GFR determine?
    flow rate of filtered fluid through the kidney
  45. What are the values for PT (prothrombin time)?

    A. 10 to 14 seconds
  46. What are the values for PTT (partial thromboplastin time)?

    C. 20 to 40 s
  47. What does a high INR indicate?

    B. high chance of bleeding
  48. What does having a low INR indicate?

    A. high chance of having a clot
  49. What are the values for normal INR?
    0.9 to 1.3
  50. The CTDI represents the average dose along the what axis or direction?

    C. z
  51. What is the purpose of the MSAD?
    Helps correct the CTDI by factoring in gaps or overlaps between slices or helices due to the selected table or pitch.
  52. What is the normal oxygen saturation percentage?
    95 to 100 %
  53. Where is the Sinoatril (SA) node located and what does it do?
    • Right Atrium
    • Main control and source of each beat
  54. What is called the "natural pacemaker" of the heart?
    SA node
  55. What does the Atrioventricular (AV) node do?
    • Provides a pathway for impulses from the Atria to the Ventricles.
    • Creates a delay in conduction from the atria to the ventricles.
  56. What wave shows the Atrial Contractions?

    B. P
  57. What wave shows the Ventricular Contractions?

    A. QRS
  58. What wave shows the Ventricular Relaxation?

    B. T
  59. Where are the ECG leads placed at on the body?
    On each shoulder and at the apex of the heart
  60. What phase of the heart has the Atria and Ventricles relaxed?
  61. What phase of the Heart triggers both the Atria to contract?
    Atrial Systole
  62. What phase of the Heart triggers both the Ventricles to contract?
    Ventricular Systole
  63. What are the values for an Oral Temperature?
    97 to 99
  64. What are the values for an Axilla Temperature?
    96.5 to 98.5
  65. What are the values for Rectal Temperature?
    97.5 to 99.5
  66. Where is the most common site for taking a pulse?
  67. What is the Average Adult Pulse?
    70 to 100 bpm
  68. What is an Athletic Adults Pulse?
    45 to 60 bpm
  69. What is a Childs Pulse?
    95 to 110 bpm
  70. What is an Infants Pulse?
    100 to 180 bpm
  71. What indicates the force of ventricular contraction?
    Systolic pressure
  72. What indicates the lowest pressure of the ventricle between heartbeats?
    Diastolic Pressure
  73. Where is the most common place for measuring blood pressure?
    Brachial Artery
  74. What is the normal systolic pressure for an Adult?
    90 to 140
  75. What is the normal diastolic pressure for an Adult?
    60 to 90
  76. What is the normal systolic and diastolic pressure for a Child?
    85-130 over 45-85
  77. Whats the average respiration rate for a child?
    15 to 30
  78. Whats the average respiration rate for an infant?
    25 to 50
Card Set
Study Guide 4.txt
CT Review Patient Handling and Safety