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CEN Practice Test Questions and 100% Correct Answers

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Preload refers to: a. The volume of blood entering the left side of the heart b. The volume of blood entering the right side of the heart c. The pressure in the venous system that the heart must overcome to pump the blood d. The pressure in the arterial system that the heart must overcome to pump the blood b. The volume of blood entering the right side of the heart Preload is the volume of blood that enters the right side of the heart. This volume stretches the fibers in the heart prior to contraction. Preload is commonly measured as atrial pressure. The patient is brought to the ED with an anterior ST-elevation myocardial infarction (STEMI). You are assessing him for possible administration of fibrinolytics. An absolute contraindication for this treatment is: a. The patient's pain is not relieved by medications. b. Symptoms began 36 hours before arrival. c. The patient has received aspirin in the last 2 hours. d. The patient had a previous MI 6 years ago. b. Symptoms began 36 hours before arrival

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