A 67-year-old man presents to emergency room with a 3-day history of shortness of breath. On examination you palpate the radial pulse and notice that the patient has an irregular heartbeat with an overall rate of 140 bpm. You request an electrocardiogram (ECG), which reveals that the patient is in atrial fibrillation. Which of the following would you expect to see when assessing the JVP?
سؤال مجاني 1 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: D. Absent 'a wave'
The a wave of the JVP is produced by atrial contraction. In atrial fibrillation there is no organised atrial contraction, so the a wave is absent. Cannon a waves occur with AV dissociation (complete heart block), and a large v wave suggests tricuspid regurgitation.
ليش كل خيار صح أو غلط
-
A
ليش غلط
AF is not among the listed causes of elevated JVP (right HF, fluid overload, tricuspid dysfunction, effusion, constriction, tamponade); its JVP sign is an absent a wave.
✓ Cardiology 🫀.pdf · p. 55 -
B
ليش غلط
A large v wave is the JVP sign of tricuspid regurgitation, not atrial fibrillation.
✓ Cardiology 🫀.pdf · p. 55 -
C
ليش غلط
Cannon a waves are the JVP finding of complete heart block, not atrial fibrillation.
✓ Cardiology 🫀.pdf · p. 55 -
D
ليش صح
In atrial fibrillation the JVP shows an absent a wave.
✓ Cardiology 🫀.pdf · p. 55
- المصدر
- Cardiology 🫀.pdf · p. 55
- المحاضرة
- Arrhythmia · Cardiology · Module B
- ظهر في
- Cardio bank