Ati Rn Comprehensive Predictor 2019 Exam Form A Answered With Detailed Explanation.
ATI RN COMPREHENSIVE PREDICTOR 2019 EXAM FORM A ANSWERED WITH DETAILED EXPLANATION. 1. The nurse suspects the patient has increased afterload. Which piece of equipment should the nurse obtain to determine the presence of this condition? a. Pulse oximeter b. Oxygen cannula c. Blood pressure cuf d. Yankauer suction tip catheter ANS: C A blood pressure cuf is needed. The diastolic aortic pressure is a good clinical measure of afterload. Afterload is the resistance to left ventricular ejection. In hypertension the afterload increases, making cardiac workload also increase. A pulse oximeter is used to monitor the level of arterial oxygen saturation; it will not help determine increased afterload. While an oxygen cannula may be needed to help decrease the efects of increased afterload, it will not help determine the presence of afterload. A Yankauer suction tip catheter is used to suction the oral cavity. 2. A patient has heart failure and cardiac output is decreased. Which formula can the nurse use to calculate cardiac output? a. Myocardial contractility × Myocardial blood flow b. Ventricular filling time/Diastolic filling time c. Stroke volume × Heart rate d. Preload/Afterload ANS: C 237 Cardiac output can be calculated by multiplying the stroke volume and the heart rate. The other options are not measures of cardiac output.
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