A nurse is caring for a client diagnosed with atrial fibrillation who is receiving continuous IV heparin. Which of the following findings is the nurse's priority?
The client has an INR of 2.
The client has an aPTT of 80 seconds.
The client experiences sudden weakness of one arm and leg.
The client's ECG tracing shows irregular heart rate without P waves.
The Correct Answer is C
A. An INR of 2 is within the therapeutic range for anticoagulation but is more relevant for warfarin therapy rather than heparin.
B. An aPTT of 80 seconds is slightly elevated but not immediately life-threatening. The therapeutic range for heparin is typically 1.5 to 2.5 times the normal value (approximately 60-80 seconds).
C. Sudden weakness of one arm and leg suggests a possible embolic stroke, which is a serious complication of atrial fibrillation. This requires immediate assessment and intervention.
D. An irregular heart rate without P waves is characteristic of atrial fibrillation but is not the most urgent concern compared to potential stroke symptoms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","D","E"]
Explanation
A. Increased blood pressure is expected due to excess fluid in the vascular system, which raises blood volume and pressure.
B. Hematocrit is typically decreased in fluid volume overload due to hemodilution rather than increased.
C. Increased temperature is not a common finding in fluid overload, as fever is usually associated with infection rather than volume excess.
D. Increased heart rate (tachycardia) occurs as the heart compensates for excess fluid and decreased cardiac output.
E. Increased respiratory rate is common due to pulmonary congestion and fluid accumulation in the lungs, leading to dyspnea.
Correct Answer is B
Explanation
A. Lidocaine is used for ventricular arrhythmias, not supraventricular tachycardia (SVT).
B. Adenosine is the first-line treatment for stable SVT, as it temporarily blocks AV node conduction, allowing the heart to reset into a normal rhythm. It is given as a rapid IV push.
C. Atropine increases heart rate and is used for bradycardia, not tachycardia.
D. Epinephrine stimulates the heart and is used for asystole and severe bradycardia, not SVT.
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