Question

medsurg extra credit.pdf 8. Which is the most dangerous complication of atrial fibrillation? A) Myocardial infarction B) Congestive Heart Failure C) Pulmonary Edema D) Dislodging a thrombus from the heart 9. Which is the ECG reading that tells a patient is having atrial fibrillation? A) Disseminated ST segment elevation B) ST segment depression C) Irregularly irregular trace Rhythm D) Bradycardia 10. Which is the ECG reading that tells a patient is having atrial flutter? A) Disseminated ST segment elevation B) ST segment depression C) Sawtooth pattern D) Bradycardia 11. Which of the following Angina is seen in patients that consume cocaine? A) Printzmetal or Variant Angina B) Unstable Angina C) Stable Angina

Answer 1

And 8. D).Dislodging a thrombus from the heart.

It is the real danger ie increased risk of stroke. The chaotic rhythm may cause blood to pool in hearts upper chambers forming clots. This clot can dislodge from the heart and move to the brain.

Ans9. C) irregularly irregular trace rhythm.  

In arterial fibrillation the rhythm is not even, but has a pattern to it. The irregular rhythm can lead to heart palpitation and other afibrilatic symptoms. Fibrillatory waved looks like P waves which can make arterial fibrillation rhythm look like sinus rhythm.

Ans 10. C) Sawtooth pattern.

In which the arterial rate is so fast that the P waves are not identifiable or only course fibrillatory waves are seen.

Ans 11. B) Unstable Angina.

Cocaine increases risk by increasing the heart rate and blood pressure in setting of limited oxygen supply by vasoconstriction and promoting inflammation, possibly due to increase in C- reactive protein and platelet level leading to unstable angina.