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 C
Explanation
A. Daily weight monitoring is important for assessing fluid status but may not provide real-time information about fluid balance changes.
B. Vital signs are important for overall assessment but may not specifically address the nursing diagnosis of Excess Fluid Volume unless there are significant changes indicative of fluid overload or dehydration.
C. Monitoring intake and output provides direct information about fluid balance and renal function, helping to identify trends and assess the effectiveness of interventions aimed at managing fluid volume.
D. Skin turgor assessment is useful for evaluating hydration status but may not provide comprehensive data on fluid volume excess alone.
Correct Answer is D
Explanation
A. Coffee is generally well tolerated unless the patient experiences discomfort or adverse effects from caffeine. It does not typically pose specific risks for patients with Hodgkin's disease.
B. Orange juice is generally safe to consume unless the patient has specific dietary restrictions or intolerances. It provides vitamin C and hydration.
C. Ginger ale is a non-caffeinated, carbonated beverage that is often used to alleviate nausea and upset stomach. It is generally safe to consume for patients with Hodgkin's disease unless there are individual sensitivities.
D. Alcohol consumption, including wine, should be avoided by patients with Hodgkin's disease, especially during treatment. Alcohol can suppress the immune system and may interact with medications or exacerbate side effects.
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