Cardiovascular diagnostics

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  1. -series of radiographs taken after injection of radiopaque dye into an artery
    -aids in diagnosis of vessel occlusion, pooling in various heart chambers, and congenital anomalies
  2. -visualizes the abdominal aorta and major leg arteries by using dye injected through femoral artery and into the aorta
    -aneurysms and many other abnormalities can be diagnosed
    -contrast media may also be used
  3. -invasive procedure used to visualize the hearts chambers, valves, great vessels, and coronary arteries
    -used to measure pressure within a heart and blood-volume realationship to cardiac competence
    -contrast dye (iodine) may be used for better angiography results
    -pt lies supine with pressure at insertion site to prevent hemorrhage
    -blood samples are obtained
    cardiac catheritization
  4. -graphic study of electrical activities of the myocardium
    -has 3 distinct waves, P wave, QRS complex, and T wave
    -has 10 electrodes, 6 are placed on on chest, and 4 on limbs
    -conductive gel used to enhance contact transmission
    -if no variation of position is required, pt lies in supine position
    electrocardiography (ECG)
  5. -ambulatory ECG with tape recorder
    -journal of activities/symptoms kept
    -attached by one to four leads
    -operates continously
    -can note things that affect/precipitate dysrythmias
    -may be used when resting state may has normal ECG
    Holter monitor
  6. electronic transmission of data to a distant location, such as an ECG transmitter sending info to the oscilloscope, can be directly connected or wireless
  7. If a pt is on an ambulatory ECG, do you remove it to allow for a shower?
    Only if the PCP has written an order to allow for a shower, the pt may have a dysrhythmia that wont be recorded
  8. -pt is pushed to a point of exertion to evaluate ischemia, dysrhythmia, and extent of cardiac capability under extreme circumstances
    -if pt cant tolerate physical activity, may be done by administering dipyridamole (Persantine) or adenosine which will put stress on the heart similar to that of the activity
    exercise/stress ECG
  9. -uses thallium 201 to visualize blood flow, which is injected via IV while on treadmill
    -inadequate blood flow will not show and a 'cold spot' is produced
    -breast tissue can produce artifact, which may produce false positive, technetium 99m sestamibi may be used to help minimize artifact and improve accuracy
    -if cant tolerate physical exercise, dipyridamole (Persantine) or adenosine may be administered instead
    thallium scanning
  10. -high frequency ultrasound directed at heart
    -the echo (reflected sound) is graphically recorded
  11. -computerized radiographic technique that uses radioactive substances (inhaled or injected) to examine the metabolic activity of various body structures
    -has been used to study dementia, stroke, epilepsy, tumors, and detecting CAD (noninvasively) in asymptomatic pt
    -distinguuishes between viable and nonviable myocardial tissue, which helps determine whether or not bypass surgery or angioplasty would be appropriate for the pt
    positron emission tomography (PET)
Card Set
Cardiovascular diagnostics
diagnostics of the cardiovascular system
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