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1 BME 210 Spring 2007 Name: _______________________________ MIDTERM EXAMINATION #1 (1 hr 15 min) (15 points) 1. A dye-dilution procedure was performed in a patient in which 0.5 mg of dye was injected into the right femoral artery (provides the blood supply to the right leg) and the dye concentrations (C(t)) given in the table below were measured in the right femoral vein at several times. These data have been corrected for any recirculation. The patient’s right femoral artery blood flow was assumed to be constant during the course of the experiment. t - time (sec)C(t) – dye concentration (mg/L)0.0 0.0 2.0 15.0 4.0 10.0 6.0 8.0 8.0 0.0 Using these data, estimate the area under the dye concentration-time curve using the following numerical integration methods: trapezoidal ruleand Simpson’s method. Also use these two approximations to calculate the corresponding values of blood flow, F. Express your answer for F in L/min. (See study problem solution to a similar problem.)
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