A nurse analyzes a rhythm strip for a patient who has had a myocardial infarction and observes the following: no visible P waves, PR interval not measurable, ventricular rate of 162, R-R interval regular, QRS complex wide and distorted, and QRS duration of 0.18 second.
How should the nurse interpret this cardiac rhythm?
Sinus tachycardia.
Ventricular tachycardia.
Ventricular fibrillation.
Atrial flutter.
The Correct Answer is B
Choice A rationale
Sinus tachycardia is a regular, rapid heart rate caused by rapid firing of the sinoatrial node. It is characterized by a heart rate of greater than 100 beats per minute, and P waves are present before each QRS complex. This does not match the description given.
Choice B rationale
Ventricular tachycardia is a fast, regular beating of the ventricles that may last for only a few seconds or for much longer. In this condition, the ventricular rate is often between 120 and 200 beats per minute, and P waves are not associated with the QRS complexes. This matches the description given.
Choice C rationale
Ventricular fibrillation is a severe condition in which the heart beats with rapid, erratic electrical impulses. This causes the ventricles to quiver uselessly instead of pumping blood. The description does not match this condition.
Choice D rationale
Atrial flutter is a condition that shares similarities with atrial fibrillation, both involve an irregular heartbeat. However, atrial flutter is more organized and less chaotic than atrial fibrillation, which can make it more manageable. The description does not match this condition.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Assessing the need for smoking cessation is a standard part of nursing care, especially for patients with circulatory issues. Smoking can exacerbate circulatory problems and delay wound healing.
Choice B rationale
Applying TED hose to bilateral legs might not be appropriate for this patient. TED hose are compression stockings designed to prevent deep vein thrombosis and promote circulation.
However, in a patient with weak pedal pulses and a full-thickness wound on the leg, the compression from the stockings could potentially worsen circulation to the area and impede wound healing.
Choice C rationale
Consulting physical therapy could be beneficial for this patient. Physical therapists can provide exercises and interventions to improve circulation and mobility, which could help with the patient’s circulatory issues and wound healing.
Choice D rationale
Obtaining an Ankle-Brachial Index (ABI) with a hand-held Doppler could be useful in this situation. The ABI is a simple, non-invasive test that can help diagnose peripheral artery disease (PAD), a condition that could be causing the patient’s weak pedal pulses and wound healing issues.
Correct Answer is C
Explanation
Choice A rationale
Administering Ibuprofen as scheduled is a proper nursing intervention for a patient with pericarditis. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can help reduce inflammation and relieve pain.
Choice B rationale
Monitoring the patient for complications of cardiac tamponade is a proper nursing intervention for a patient with pericarditis. Cardiac tamponade is a serious condition that can occur as a complication of pericarditis.
Choice C rationale
Placing the patient in a supine position to relieve pain is not a proper nursing intervention for a patient with pericarditis. This position could actually increase the patient’s discomfort.
Instead, the patient should be positioned upright and leaning forward to help relieve pain.
Choice D rationale
Monitoring the patient for pulsus paradoxus and muffled heart sounds is a proper nursing intervention for a patient with pericarditis. These are potential signs of worsening pericarditis or complications such as cardiac tamponade.
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