NURS 2873 Final exam study guide Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Rehabilitation Phase of Burn injury - Correct Answers ✅The
rehabilitation phase begins when:
•Wounds have healed •Patient is engaging in some level of self-care •Can occur as early as 2 weeks or as long as 7 to 8 months after a major burn injury Skin and joint contractures •Most common complications during rehab phase.•Positioning, splinting, and exercise should be used to minimize contracture.A patient with paroxysmal supraventricular tachycardia (PSVT) that is receiving intravenous adenosine becomes hemodynamically unstable. The nurse expects what to be included in the patient's immediate treatment plan? - Correct Answers ✅Synchronized cardioversion Paroxysmal supraventricular tachycardia is a dysrhythmia starting in an ectopic focus anywhere above the bifurcation of the bundle of His. The standard drug of choice to treat paroxysmal supraventricular tachycardia is intravenous (IV) adenosine. Sometimes the drug therapy is ineffective and the patient becomes hemodynamically unstable. For patients who are unresponsive to treatment, synchronized cardioversion is used. Synchronized cardioversion is low 1 / 4
NURS 2873 Final exam study guide Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) energy shock, which uses a sensor to deliver electricity that is synchronized with the peak of the QRS complex. Drug therapy is not effective for such patients. β -adrenergic blockers and calcium channel blockers do not improve paroxysmal supraventricular tachycardia. Catheter ablation therapy is used in patients with Wolff-Parkinson-White syndrome who have recurring paroxysmal supraventricular tachycardia (PSVT).Which statement describes the electrical activity of the heart represented by the PR interval on an electrocardiogram (ECG)? - Correct Answers ✅The length of time for the electrical impulse to travel from the sinoatrial (SA) node to the Purkinje fibers The electrical impulse in the heart must travel from the SA node through the AV node and into the Purkinje fibers for synchronous atrial and ventricular contraction to occur. When measuring the PR interval (the time from the beginning of the P wave to the beginning of the QRS), the nurse is identifying the length of time it takes for the electrical impulse to travel from the SA node to the Purkinje fibers. The P wave represents the length of time it takes for the impulse to travel from the SA node through the atrium, causing depolarization of the atria (atrial contraction). Atrial repolarization occurs during ventricular depolarization and is hidden by the QRS complex. The length of time it takes for the electrical impulse to travel from the SA node to the AV node is the flat line 2 / 4
NURS 2873 Final exam study guide Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) between the end of the P wave and the beginning of the Q wave on the ECG and usually is not measured When computing a heart rate on a patient's ECG tracing, the nurse counts 15 small blocks between an R-R interval. The rhythm is regular. What should the nurse document as the patient's heart rate? - Correct Answers ✅100 BPM Because each small block on the ECG paper represents 0.04 seconds, 1500 of these blocks represent one minute. By dividing the number of small blocks (15 in this case) into 1500, the nurse can calculate the heart rate in a patient whose rhythm is regular (in this case, 100). Sixty beats/minute, 75 beats/minute, and 150 beats/minute are inCorrect Answers .A patient with a heart rate of 180 beats/minute has a regular heart rhythm, normal P waves, and normal PR intervals. The nurse expects to see what QRS complex shape on the patient's ECG tracing? - Correct Answers ✅NORMAL A patient with a heart rate of 180 beats/minute has a regular heart rhythm, normal P waves, and normal PR intervals. The nurse expects to see what QRS complex shape on the patient's ECG tracing? 3 / 4
NURS 2873 Final exam study guide Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) The nurse monitors the electrocardiogram (ECG) of a patient diagnosed with acute coronary syndrome. The patient's baseline rhythm is sinus rhythm. Which additional ECG findings are most suggestive of myocardial infarction? Select all that apply. - Correct Answers ✅T-WAVE INVERSION
PATHOLOGIC Q WAVE
ELEVATED ST SEGMENT
Typical ECG changes that are seen in myocardial infarction include ST-segment elevation (not depression), T-wave inversion, and a pathologic Q wave. The patient will not have premature atrial contractions.The nurse observing a telemetry monitor notes that a patient that was in sinus rhythm is now in a different rhythm. The electrocardiogram (ECG) now shows no P waves, fine and wavy lines between the QRS complexes, QRS complexes that measure 0.08 sec, and QRS complexes that occur irregularly with a rate of 120 beats/minute. The nurse correctly interprets this rhythm as what? - Correct Answers ✅ATRIAL
FIBRILLATION
Atrial fibrillation is represented on the cardiac monitor by irregular R-R intervals and small fibrillatory (f) waves. There are no normal P waves because the atria are not contracting truly, just fibrillating. Sinus tachycardia is a sinus rate above
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