253 - Cardiovascular NCLEX Questions (100% Error-free Answers)

The nurse is reviewing an electrocardiogram rhythm strip. The P waves and QRS complexes are regular. The PR interval is 0.16 second, and QRS complexes measure 0.06 second. The overall heart rate is 64 beats/minute. Which would be a correct interpretation based on these characteristics? 1.Sinus bradycardia 2.Sick sinus syndrome 3.Normal sinus rhythm 4.First-degree heart block correct answers 3. Normal sinus rhythm is defined as a regular rhythm, with an overall rate of 60 to 100 beats/minute. The PR and QRS measurements are normal, measuring 0.12 to 0.20 second and 0.04 to 0.10 second, respectively. Cognitive Ability: Analyzing Client Needs: Physiological Integrity Integrated Process: Nursing Process: Assessment Content Area: Adult Health: Cardiovascular Strategy(s): Subject Priority Concepts: Clinical Judgment, Perfusion A client is wearing a continuous cardiac monitor, which begins to sound its alarm. A nurse sees no electrocardiographic complexes on the screen. Which is the priority action of the nurse? 1.Call a code. 2.Call the health care provider. 3.Check the client's status and lead placement. 4.Press the recorder button on the electrocardiogram console. correct answers 3. Sudden loss of electrocardiographic complexes indicates ventricular asystole or possibly electrode displacement. Accurate assessment of the client and equipment is necessary to determine the cause and identify the appropriate intervention. The remaining options are secondary to client assessment. Cognitive Ability: Applying Client Needs: Physiological Integrity Integrated Process: Nursing Process: Implementation Content Area: Adult Health: Cardiovascular Strategy(s): Strategic Words, Steps of the Nursing Process A client is having frequent premature ventricular contractions. The nurse should place priority on assessment of which item? 1.Sensation of palpitations 2.Causative factors, such as caffeine 3.Precipitating factors, such as infection 4.Blood pressure and oxygen saturation correct answers 4.