Term
| Why is a stress echo done? |
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Definition
| To look for wall motion, measure ejection volumes, view wall thickening, valvular dysfunction. It's used when ECG is unreliable for detection of ischemia ie: LBBB can't be seen on ECG. |
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Term
| When can the stress echo be done? |
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Definition
| At rest and immediately (within 1-2min) after exercise completion. |
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Term
| What is the problem w/ stress echo? |
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Definition
| We can't do them during exercise, so we can only see what happens when pt says it's enough - not what leads up to that point. |
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Term
| What does MUGA stand for? |
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Definition
| Multi-ECG Gated Acquisition. |
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Term
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Definition
| To estimate wall motion, ventricular volume & EF - ischemia detection. |
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Term
| What heart quality is necessary in order to perform a MUGA? |
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Definition
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Term
| In what position is a MUGA performed in? |
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Definition
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Term
| What is a radionucleotide GET and what is it used for? |
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Definition
| a radioactive dye is carried through the vascular system to evaluate vascular deficiencies; the extent and distribution of ischemia during exercise. |
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Term
| What is physiologic stress testing? |
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Definition
| A chemical is used to increase HR while you're laying on the table. Drugs = Dobutamin or Dipyridamole/adenosine. |
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Term
| What is the problem w/ physiologic stress tests? |
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Definition
| It's very uncomfortable b/c it puts the pt at an exercising HR while they're at rest. Most ppl don't like this test very much. |
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Term
| Dobutamine and Dipyridamole/adenosine are used in physiologic stress tests. What do they do? |
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Definition
| Dobutamin increase HR and contractility. Dipyridamole/adenosine vasodilates. |
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Term
| What are the uses of physiologic stress tests? (4) |
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Definition
| Dx CAD, assess myocardial viability prior to CABG, prognosis post-MI, assess pre-op risk. |
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