What is seen on an ECG tracing when there is no electrical activity being produced?
Negative waveform
Isoelectric line
Downward deflection
Positive waveform
The Correct Answer is B
A. A negative waveform indicates a downward deflection from the baseline on an ECG tracing, which may correspond to electrical activity such as depolarization or repolarization of cardiac chambers.
B. An isoelectric line represents the baseline on an ECG tracing when there is no net electrical activity occurring in the heart. It appears flat and represents a period of electrical silence.
C. A downward deflection on an ECG tracing refers to a negative waveform, as mentioned above.
D. A positive waveform on an ECG tracing indicates an upward deflection from the baseline, representing electrical activity such as depolarization or repolarization.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While assessment and data collection are important, the priority in the presence of a life-threatening arrhythmia is to initiate immediate interventions to address the situation.
B. The nurse should immediately inform the healthcare provider about the life- threatening arrhythmia to obtain further guidance and potential orders for intervention.
C. Vital signs are important, but they should not delay immediate action when a life- threatening arrhythmia is present.
D. Administering antiarrhythmic medication may be necessary, but the nurse should first notify the healthcare provider to obtain orders and guidance before administering any medications.
Correct Answer is ["A","B","C"]
Explanation
A. Painless lymphadenopathy, especially in the cervical, supraclavicular, or mediastinal areas, is a hallmark feature of Hodgkin lymphoma, reflecting the disease's characteristic pattern of lymph node involvement.
B. Pruritis can occur in Hodgkin lymphoma, and can either be focal or generalized.
C. Generalized feelings of discomfort, fatigue, or unease are common in Hodgkin lymphoma due to the effects of the disease on the immune system, as well as potential systemic symptoms such as fever, night sweats, and weight loss.
D. While cough can occur in advanced stages of Hodgkin lymphoma, it is not a defining clinical manifestation and is more commonly associated with respiratory infections or complications.
E. Fever is one of the B symptoms which are associated with Hodgkin Lymphoma.
However, the fever is often low-grade and can be associated with Pel-Ebstein fever which is intermittent fever periods with high temperature followed by afebrile periods.
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