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Chapter 6: Cardiovascular System
Artery cross section
Artery
Plaque
Narrowed artery
Catheters
Plaque
Closed stent
Closed stent balloon catheter
Expanded stent
Balloon
Learning Tip It is easy to use a search engine on your computer, tablet, or smartphone to find websites or videos that provide additional informa- tion about any cardiac top- ics that you find especially interesting. As always, if you hear key concepts or read and verbalize them aloud, you engage your verbal, auditory, and visual senses, which greatly increases the chance that you will under- stand and later remember the information.
Stent widened artery
Stent widened artery
Stent
Increased blood flow
Compressed plaque
FIGURE 6-12 Percutaneous transluminal coronary angioplasty.
Pharmacology Table 6-1 provides examples of common cardiovascular medications. The table gives the medication’s therapeutic and pharmacological classification. The ther- apeutic system categorizes drugs by the type of disease they are used to treat. The pharmacological system is based on the drug’s mechanism of action. Drug resource guides provide comprehensive information. TABLE 6-1 EXAMPLES OF MEDICATIONS FOR THE CARDIOVASCULAR SYSTEM Therapeutic Classification (Pharmacological) Generic Name Trade Name Common Use/Action Anticoagulants (antithrombotics) dalteparin Fragmin Decrease the clotting ability of the blood enoxaparin Lovenox heparin Hep-Lock warfarin Coumadin Antiplatelet agents (platelet aggregation inhibitors) aspirin Bayer, Bufferin, Ecotrin Prevent blood clot formation clopidogrel Plavix dipyridamole Generic
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