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 A
Explanation
A. Avoiding triggers that cause an asthma attack is crucial in managing asthma effectively and should be emphasized in education.
B. Cromolyn sodium is a preventive medication and should be taken regularly, not just at the first sign of difficulty; immediate relief medications are preferred during an attack.
C. The peak expiratory flow meter should be used daily to monitor asthma control, rather than just once a week.
D. It is generally not necessary for the child to stop playing sports; many children with asthma can participate in activities like basketball as long as their condition is well-managed.
Correct Answer is C
Explanation
A. Clients on digoxin should actually have an adequate intake of potassium, as low potassium levels can increase the risk of digoxin toxicity.
B. If a pediatric client spits out digoxin, the dose should not be repeated automatically; instead, the nurse should assess the situation and follow the facility's protocol regarding missed doses.
C. Measuring the apical pulse for one full minute before administering digoxin is critical; if the pulse is below the established threshold (usually <60 bpm for children), the medication should be held and the provider notified.
D. While evaluating for nausea, vomiting, and anorexia is important, it is not an appropriate immediate action before administering the medication. The priority action is to assess the apical pulse.