Test: NCLEX

1.

You are taking care of an elderly patient who is hospitalized for sudden onset of severe, diffuse abdominal pain out of proportion to the patient's abdominal physical exam that is also accompanied by rectal bleeding and palpitations. You obtain an ECG and notice a tachycardic, irregularly irregular rhythm without any distinct P waves. Which of the following is the most likely cardiac rhythm seen on this patient's ECG?

First-degree heart block

Complete heart block

Atrial fibrillation (A-fib)

Sick sinus syndrome

Atrial flutter

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