What is seen on an ECG tracing when there is no electrical activity being produced?

Negative waveform

Isoelectric line

Downward deflection

Positive waveform

Answer and Explanation

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.

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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.

A. Rhythm: Irregularly irregular B. P waves: No identifiable P waves C. PR interval: Measurable D. Heart rate: Atrial rate not measurable E. QRS interval: <0.10 seconds

Correct Answer is ["A","B","D"]

Explanation

A. Irregularly irregular: Atrial fibrillation is characterized by an irregularly irregular rhythm.
B. No identifiable P waves: P waves are typically absent in atrial fibrillation or may be difficult to identify.
C. PR interval is not typically measured in atrial fibrillation as it is not relevant to the rhythm.
D. Atrial rate not measurable: The atrial rate in atrial fibrillation is not measurable due to the rapid and irregular nature of the rhythm.
E. QRS interval is typically normal in atrial fibrillation and does not exceed 0.10 seconds.

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What is seen on an ECG tracing when there is no electrical activity being produced?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is 3 days postoperative following a cholecystectomy. The nurse suspects the client's wound is infected because the drainage from the dressing is yellow and thick. Which of the following findings should the nurse report as the type of drainage found?

Correct Answer is B

Explanation

Which of the following are rules for atrial fibrillation? Select all that apply

Correct Answer is ["A","B","D"]

Explanation

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