Diagnostic test for perfusion Flashcards Preview

N160 exam 3 > Diagnostic test for perfusion > Flashcards

Flashcards in Diagnostic test for perfusion Deck (19)
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1

• Contrast material is injected into vascular system
• Visualizes, via fluoroscopy, structure/patency of blood vessels
• Sites evaluated include:
o Aorta
o Coronary arteries
o Right side of heart
o Left side of heart
• Show degree of disease (degree of ischemia)
• Identify lesions (aneurysms)
• Identify occlusions (emboli)

Angiography (Arteriogram)

2

Contraindications:
• Allergies: shell fish, iodinated dye
• Renal failure

Angiography (Arteriogram)

3

Complications:
• Hematoma or hemorrhage at insertion site
• Embolus
• Contrast reaction

Angiography (Arteriogram)

4

• is a type of angiography
• An invasive procedure
• Radiopaque catheters inserted into both arterial and venous selected vessels
• Used to identify:
o CAD
o Atherosclerosis
o If vascular surgery would benefit patient

Cardiac Catherization

5

Contraindications:
• Allergies: shell fish, iodinated dye
• Renal failure

Cardiac Catherization, Computed Tomography with Contrast

6

• Non-invasive test to evaluate response of cardiac system to stress
• Used to identify
o CAD
o Cause of chest pain
o Function capacity of heart
o Effectiveness of cardiac meds
o Dysrhythmias
o Goals for exercise program

cardiac stress test

7

 Goal: Increase HR to "target" range
 Target = 80 - 90% of maximum HR

exercise stress test

8

 Used in disabled patient
 Possible vasodilating agents used to stimulate HR
 Persantine (dipyridamole)
 Adenocard (adenosine)
 Dobutamine

pharmacologic stress test

9

Contraindications:
• Significant cardiac disease including
o Unstable angina
o Severe uncontrolled HTN
o Acute heart failure
o Myocarditis, pericarditis or endocarditis

cardiac stress test

10

Complications:
• Life threatening
• MI
• Cardiac arrest
• Heart failure
• Severe dysrhythmias

cardiac stress test

11

• images of chest: heart/great vessels
• IV contrast may be injected
• Evaluate cardiac masses
• Identify diseases of aorta/pericardium

Computed Tomography with Contrast

12

Complications:
• Allergic reaction to contrast
• Contrast-induced renal failure

Computed Tomography with Contrast, MUGA Scan

13

• Hear/evaluate blood flow
• Locate disease vessels
• Conducting gel on skin
• Transducer slowly moved vessel

Doppler Studies
(Doppler Ultrasound Flow Studies)

14

• Requires no patient preparation
• Non-invasive

Doppler Studies
(Doppler Ultrasound Flow Studies)

15

• Noninvasive computerized ultrasound
• Show direction/velocity coronary blood flow
• Assess heart valves
• Size/motion of myocardium & heart chambers
• Conducting gel on skin
• Transducer used

Echocardiogram:
Trans thoracic Echocardiography

16

• Requires no prep
• Takes 30-45 minutes
• Non-invasive

Echocardiogram:
Trans thoracic Echocardiography

17

• Visualize back side heart
• Transducer threaded down throat

Trans esophageal Echocardiography (TEE)

18

• Radioactive isotopes given
• Enhance viewing area
• Evaluate left ventricular function
• Calculate ejection fraction
• Identify changes in left ventricle with exercise

• MUGA Scan

19

represents electrical activity of heart

12 Lead ECG