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Hoff Ch 29 Coordinating Care for Patients With Cardiac Dysrhythmia Exam Questions With Verified Answers $12.49   Add to cart

Exam (elaborations)

Hoff Ch 29 Coordinating Care for Patients With Cardiac Dysrhythmia Exam Questions With Verified Answers

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  • Dysrhythmias
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  • Dysrhythmias

EXAM STUDY MATERIALS July 23, 2024 4:26 PM Hoff Ch 29 Coordinating Care for Patients With Cardiac Dysrhythmia Exam Questions With Verified Answers A patient's heart rate is 48 beats per minute. Which structure is most likely generating this heart rate? 1) Purkinje fibers 2) Sinoatrial node ...

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  • August 1, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Dysrhythmias
  • Dysrhythmias
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EXAM STUDY MATERIALS July 23, 2024 4:26 PM Hoff Ch 29 Coordinating Care for Patients With Cardiac Dysrhythmia Exam Questions With Verified Answers A patient's heart rate is 48 beats per minute. Which structure is most likely generating this heart rate? 1) Purkinje fibers 2) Sinoatrial node 3) Atrioventricular node 4) Ventr icular pacer cells - answer✔✔3. The AV node can generate impulses at a rate of 40 to 60 bpm. The nurse is concerned that a patient is at risk for pulseless electrical activity. What information from the assessment did the nurse use to make this clinical decision? 1) Blood pH 7.30 2) Temperature 100.5°F 3) Serum glucose level 170 mg/dL 4) Serum potassium level 4.1 mEq/L - answer✔✔1. Causes of pulseless electrical activity include acidosis, which is reflected in a blood pH less than 7.35. A patient asks why cardiac leads are being placed on the chest. What should the nurse respond to this patient? 1) "It shows where the heart vessels are blocked." EXAM STUDY MATERIALS July 23, 2024 4:26 PM 2) "It is used to evaluate the effectiveness of dietary changes." 3) "It provides a graphic picture of the heart's electrical activity." 4) "It determines which medications are needed to improve heart function." - answer✔✔3. An electrocardiogram provides a graphic representation of the heart's electrical activity. When analyzing a patient's electrocardiogram, the nurse notes that the P wave is normal. What criteria did the nurse use to make this decision? 1) Pointed and skinny in width 2) Small and rounded in lead II 3) Upright and rounded in lead II 4) Length 0.10 sec onds and height 2.5 mm - answer✔✔4. The P wave itself should not be longer than 0.10 sec in length and no higher than 2.5 mm. A patient is being evaluated for a blockage in the cardiac ventricles. On which part of the electrocardiogram should the nurse f ocus as evidence of this blockage? 1) T wave 2) U wave 3) PR interval 4) QRS interval - answer✔✔4. The QRS interval is the measure of time to depolarize the ventricles. The normal interval is 0.04 to 0.10 sec in length. If the QRS is prolonged it may be a sign of a disturbance within the ventricle itself such as a block in the ventricles delaying impulse travel time through the ventricles. The nurse is observed marching out the rhythm on a patient's cardiac monitor tracing. What is this nurse assessing? 1) Rate

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