The nurse is caring for a patient whose cardiac monitor shows a total absence of electrical impulse as indicated by a flat line. The nurse does not detect a pulse or blood pressure. The nurse would document this as which of the following rhythms?
Atrial fibrillation
Asystole
Ventricular fibrillation
Atrial flutter
The Correct Answer is B
A. Atrial fibrillation is characterized by rapid, irregular electrical impulses originating from the atria, resulting in a quivering or fibrillating motion of the atria rather than a coordinated contraction.
B. Asystole is the absence of any electrical activity on the cardiac monitor, resulting in a flat line. It indicates the absence of ventricular contraction and is considered a medical emergency requiring immediate intervention (CPR and advanced cardiac life support).
C. Ventricular fibrillation is characterized by chaotic, disorganized electrical activity in the ventricles, resulting in ineffective quivering of the ventricles and loss of cardiac output.
D. Atrial flutter is characterized by rapid but regular electrical impulses originating from the atria, resulting in a sawtooth pattern on the ECG tracing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Using a systematic method for analyzing ECG tracings helps ensure that abnormalities are not overlooked, promoting accurate interpretation and diagnosis. This approach reduces the risk of diagnostic errors and ensures thorough assessment of cardiac rhythm and conduction abnormalities.
B. While using a systematic method may aid memory, its primary purpose is to ensure thoroughness and accuracy in ECG interpretation, rather than solely enhancing memory retention.
C. Indeed, using a systematic method establishes a routine for analyzing ECG tracings, aiding in consistent and comprehensive assessment, which is crucial for detecting subtle changes and abnormalities.
D. While using a systematic method may ultimately save time by preventing errors and ensuring efficiency, its primary purpose is accuracy rather than speed. The focus is on comprehensive analysis rather than expediency.
Correct Answer is C
Explanation
A. These values are within the normal range and not indicative of chronic kidney disease.
B. While an elevated BUN is present, the serum creatinine level is within the normal range, which is not consistent with chronic kidney disease.
C. Both BUN and serum creatinine levels are elevated, indicating impaired kidney function and consistent with chronic kidney disease.
D. These values are within the normal range and not indicative of chronic kidney disease.
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