Cardiology Questions 11-16

Answer and Explanation 16

16. The correct answer is B. Target INR for patients with A-Fib is 2.0-3.0. It is also target for patients with DVT or PE. INR of 2.5-3.5 is the target range for patients with valve replacements.

Question 16

16. Which of the following INR range is ideal for maintaining patients with Atrial Fib?

A. INR 1.5-2.5

B. INR 2.0-3.0

C. INR 2.5-3.5

D. INR 3.5-4.5

15. The correct answer is A. Atrial depolarization is represented by the P wave. The QRS complex is Ventricular Depolarization. The T wave represents ventricular repolarization. The U Wave which is rarely seen represents atrial repolarization.

Question 15

15. Which of the following is the QRS representative of?

A. Ventricular Re-polarization

B. Atrial Repolarizaiton

C. Ventricular Depolarization

D. Atrial Depolarization

Answer and Explanation 14

14. The correct answer is B. The patients heart rate is high and needs to have better rate control. The patient needs to be anti-coagulated. Digoxin may be helpful for rate control or the patient had a poor ejection fraction. This would be tough to manage acutely as an outpatient. The patient does not need a stress test at this point. Having the patient valsalva may help with the patients rate but if they do not convert they still need to be anti-coagulated.

Question 14

14. You are evaluating a patient in your office for palpitations. You obtain an EKG and find out the patient is in A-Fib with RVR at a rate of 120. What is the best management option in this situation?

A. Start the patient on digoxin, teach the patient how to check there pulse and see the patient next week.

B. Arrange for transfer to the emergency room for IV meds for rate control, anticoagulation, and laboratory evaluation.

C. Arrange for the patient to have an outpatient stress test.

D. Have the patient perform a valsalva maneuver

Answer and Explanation 13

13. The correct answer is D. Nitroglycerin, Aspirin and Oxygen are all helpful in patients with acute chest pain. Ativan is only really helpful for chest pain with anxiety component or if it is cocaine induced.