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Procedures and Pharmacology
FIGURE 6-10 Electrocardiogram (ECG).
FIGURE 6-11 Holter monitor.
percutaneous transluminal coronary angioplasty (PTCA): Method of treating a narrowed coronary artery via inflation and deflation of a bal- loon on a double-lumen catheter inserted through the right femoral artery (Figure 6-12). prothrombin time (PT): Procedure that measures the clotting time of blood; used with the INR to assess levels of anticoagulation in patients taking warfarin (Coumadin). A balance must be maintained between clot preven- tion and excessive bleeding. stress test: Treadmill test that can show if the blood supply is reduced in the arteries that supply the heart. transesophageal echocardiography (TEE): Study of the heart via a probe placed in the esophagus. troponin: Protein released into the body by damaged heart muscle. A high troponin T or troponin I level is considered the most accurate blood test result to confirm the diagnosis of an MI. Other conditions can also increase troponin levels, such as acute renal failure, strenuous exercise, acute pulmonary embolism, and sepsis.
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