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DVT398-JH1
USIDMS Extracranial Carotid
| Question | Answer |
|---|---|
| What is the first branch off of the ECA? | Superior thyroid artery |
| What are 3 indications for a carotid doppler? | CVA, TIA, and RIND |
| What is the formula used to calculate % diameter stenosis? | (1-residual lumen) x 100% / normal lumen |
| What are 3 ways to differentiate ICA from ECA? | ICA does not have extracranial branches, it is typically larger than ECA, and is typically more posterior. |
| True or False, ICA is not affected by light temporal augmentation. | True |
| True or False, ICA is low resistance. | True |
| What artery does the right common carotid artery branch off of? | Right brachiocephalic artery (innominate artery) |
| What does the Doppler waveform term "tardus parvus" describe? | Low velocity flow with a color bruit |
| What is used to dissolve clots in patients experiencing an ischemic stroke? | Tissue plasminogen activator |
| When do TIA symptoms resolve? | Within 24 hours |