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. Crushed ice is appropriate after a tonsillectomy as it can help soothe the throat and is a clear liquid that is easy for the child to swallow.
B. Cranberry juice is acidic, which can irritate the throat and is generally not recommended immediately after tonsillectomy.
C. Orange juice is also acidic and could cause discomfort to the healing throat tissues, making it unsuitable for post-operative care.
D. A vanilla milkshake may be too thick for the child to swallow comfortably after surgery and can pose a risk of choking.
Correct Answer is D
Explanation
A. Weak pulses are more indicative of reduced cardiac output or other cardiac issues, rather than specifically a large patent ductus arteriosus (PDA).
B. Cyanosis with crying can occur in various conditions, but it is not a hallmark of a large PDA; it typically presents with other symptoms.
C. Chronic hypoxemia is more associated with severe heart defects or lung conditions, whereas a large PDA may present with other signs first.
D. A systolic murmur is a classic finding in large PDAs due to the left-to-right shunting of blood, making it the most expected manifestation in this scenario.