The predominant form of percutaneous coronary intervention (PCI) is
a. Rotablator.
b. stents.
c. directional coronary atherectomy (DCA).
d. balloon angioplasty (PTCA).
B
Stents are currently the predominant form of percutaneous coronary intervention and are used in more than 90% of all interventional procedures. The Rotablator device has a high-speed, rotating, diamond-coated bur that drills through the plaque, creating tiny particles. Because directional coronary atherectomy extracts pieces of atheroma that can be studied microscopically (similar to a biopsy specimen), it has contributed significantly to our understanding of atherosclerosis and restenosis. Percutaneous transluminal coronary angioplasty (PTCA), frequently abbreviated to balloon angioplasty or simply angioplasty, was introduced in 1977 as an alternative to coronary surgical revascularization. PTCA avoided many of the risks associated with cardiac surgery (general anesthesia, sternotomy, extracorporeal circulation, and mechanical ventilation), but its success was hampered by complications related to the procedure (acute closure) and restenosis or renarrowing of the vessel after the procedure.
You might also like to view...
An older adult admitted for back surgery asks for opioid pain medication. The nurse knows the patient asks for pain medication 15 minutes before it is due. Which recommendation should the nurse implement?
a. Validate the pain with other assessment data. b. Administer the pain medication as re-quested by the patient. c. Tell the patient that it is too soon for pain medication. d. Teach the patient alternative comfort measures.
The nurse needs to document a medication that has just been administered. Which technique should the nurse use to document medication administration?
a. Document the medication immediately before administration. b. Record the time administered and the nurse's name immediately after adminis-tration. c. Record medication administration time, route, and dose at the end of the shift. d. Delegate recording administration time and the nurse's name in the medication administration record (MAR).
The nurse is preparing to perform a head and neck assessment on a client with Parkinson's disease. Which finding should the nurse anticipate?
A. Mask-like expression. B. Exophthalmos. C. Enlargement of the head. D. Facial paralysis.
S.B.'s skull x-ray study is negative for BSF. How significant is this finding?
What will be an ideal response?