CARDIAC NCLEX questions with correct answers

The nurse is caring for a client with an arterial line. How does the nurse recognize that the client is at risk for insufficient perfusion of body organs? A. Right atrial pressure is 4 mm Hg. B. Mean arterial pressure (MAP) is 58 mm Hg. C. Pulmonary artery wedge pressure (PAWP) is 7 mm Hg. D. PO2 is reported as 78 mm Hg. - Answer B. Mean arterial pressure (MAP) is 58 mm Hg. To maintain tissue perfusion to vital organs, the MAP must be at least 60 mm Hg. A MAP of between 60 and 70 mm Hg is necessary to maintain perfusion of major body organs such as the kidneys and brain. An arterial line will not measure atrial pressure, PAWP, or oxygenation. Normal right atrial pressure is 1 to 8 mm Hg. Normal PAWP is 4 to 12 mm Hg. A normal PO2 is greater than 75 mm Hg. The nurse in a coronary care unit interprets information from hemodynamic monitoring. The client has a cardiac output of 2.4 L/min. Which action should be taken by the nurse? A. No intervention is needed; this is a normal reading. B. Collaborate with the health care provider to administer a positive inotropic agent. C. Administer a STAT dose of metoprolol (Lopressor). D. Ask the client to perform the Valsalva maneuver. - Answer B. Collaborate with the health care provider to administer a positive inotropi