A nurse is analyzing a client's electrocardiogram (ECG) strip and identifies the following information: Heart rate: 92/min Rhythm: Irregular P wave:
Unable to identify PR interval:
Unable to measure QRS duration:
0.10 seconds Based upon this information,
thenurse should interpret the client's rhythm as indicating which of the following?
Supraventricular tachycardia
Atrial fibrillation
Sinus bradycardia
First-degree heart block
The Correct Answer is B
A. Supraventricular tachycardia (SVT) typically has identifiable P waves; the absence of P waves suggests a different condition.
B. Atrial fibrillation is characterized by an irregular rhythm, inability to identify P waves, and varying intervals. This interpretation aligns with the client's ECG findings.
C. Sinus bradycardia would show identifiable P waves and a regular rhythm with a heart rate less than 60 bpm, which does not match the provided information.
D. First-degree heart block would also show identifiable P waves and regularity in the rhythm with a prolonged PR interval, which is not indicated here.
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Correct Answer is C
Explanation
A. Taking ferrous sulfate between meals may actually help reduce the risk of constipation, but this is not the primary reason for timing.
B. Taking the medication with food does not typically increase the risk of esophagitis; rather, it can decrease the absorption of iron.
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D. While it is true that some patients may experience nausea when taking iron supplements with food, the primary reason for taking it between meals is to enhance absorption rather than to prevent nausea.
Correct Answer is D
Explanation
A. Providing a lecture that encourages taking calculated risks may lead adolescents to underestimate the dangers of certain activities rather than promoting safety.
B. Offering rewards for reporting high-risk behavior may create an environment of distrust and could discourage open dialogue among peers regarding safety issues.
C. Giving pamphlets does not engage adolescents effectively; they may not read or absorb the information thoroughly without interactive discussion.
D. Creating a mock scene of a motor-vehicle crash effectively demonstrates the serious consequences of high-risk behaviors, engaging students in a way that promotes awareness and understanding of safety.