NR 340 Unit 4 Hemodynamics/Shock
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7 questions
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- Q1When checking a patient’s pulmonary artery occlusion pressure, the nurse inflates the balloon as ordered, not inflating the balloon for more than 8 to 10 seconds. The patient asks the rationale behind the nurse’s actions. Which statement should the nurse make?“Prolonged inflation increases the likelihood of thermistor damage.”“Prolonged inflation increases the risk of catheter balloon rupture.”“Prolonged inflation can obstruct blood flow, resulting in ischemia.”“Prolonged inflation will reduce tension on the pulmonary artery wall.”30s
- Q2The nurse is caring for a patient who is being monitored with a central venous catheter. In preparing to record a right atrial pressure reading, what is most important for the nurse to keep in mind when recording an accurate value?High pressures are likely to indicate hypovolemiaZero referencing is not needed before every recordingRecord the pressure at the end of expirationLow pressures indicate ventricular dysfunction60s
- Q3The nurse is orienting a new RN to the ICU. The nurse begins to review orders recently entered by the cardiologist and to explain their rationale to the new RN. Medication orders include dobutamine (Dobutrex) 400 mg in 250 mL 5% dextrose in water titrated to keep cardiac index >2 L/min/m2. Which statement by the new RN indicates that teaching has been effective?“The cardiac index is the measurement specific to the patient’s size or body area.”“The cardiac index is the amount of blood pumped out by a ventricle per minute.”“The cardiac index is the pressure created by the volume of blood in the left heart.”"The cardiac index is the amount of blood ejected with each ventricular contraction.”60s
- Q4What is the best action by the nurse to level and zero a hemodynamic monitoring system transducer?Level the air-fluid interface of the zeroing transducer at the height of the patient’s mattressLevel the air-fluid interface of the zeroing transducer at the second intercostal space, anterior-axillary linePosition the air-fluid interface of the zeroing transducer at the fifth intercostal space, midclavicular linePosition the air-fluid interface of the zeroing transducer at the phlebostatic axis (fourth intercostal space, midaxillary line)60s
- Q5What is the best position for the nurse to place the patient in to obtain a right atrial pressure measurement?Right side-lying with the head of the bed elevated 30 degreesLeft side-lying with the head of the bed elevated 30 degreesSupine, either flat or with the head of the bed no more than 60 degreesProne, lying on the abdomen with slight head elevation60s
- Q6The nurse is caring for a patient in shock. Which is a priority action by the nurse?Ensure adequate cellular hydrationMaintain adequate tissue perfusionSupport mechanical ventilationPrevent third-spacing of fluids60s
- Q7The nurse is caring for a patient with possible distributive shock. Which should the nurse look for on assessment?Vasodilation and relative hypovolemiaThird-spacing of fluids into peritoneal spaceBlood loss and actual hypovolemiaDecreased cardiac output60s