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 {"dropdown-group-1":"B","dropdown-group-2":"C"}
Explanation
The nurse should prioritize the client's immediate clinical needs based on the assessment data provided.
The first action should be to address the client's agitation, which is a sign of distress and can lead to safety issues. Therefore, the nurse should first address the client's "fall precautions" to ensure safety and prevent potential harm due to the client's disorientation and agitation.
Following this, the nurse should address the client's "urine collection" for urinalysis and culture and sensitivity (C&S), as it is critical to identify the cause of the client's febrile state and incontinence of foul-smelling urine, which could indicate an infection. This will allow for appropriate antibiotic therapy to be administered based on the sensitivity results.
Correct Answer is B
Explanation
A. Sanguineous drainage is typically bright red and composed mainly of red blood cells. It is common immediately after surgery but does not typically indicate infection.
B. Purulent drainage is thick, yellow, or greenish in color and contains pus, indicating infection. It requires prompt assessment and intervention.
C. Serous drainage is clear, watery, and pale yellow in color. It is typically a normal finding in surgical wounds.
D. Serosanguineous drainage is pink to pale red and contains a mixture of blood and serum. It is common in the early stages of wound healing.
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