Which of the following are rules for atrial fibrillation? Select all that apply
Rhythm: Irregularly irregular
P waves: No identifiable P waves
PR interval: Measurable
Heart rate: Atrial rate not measurable
QRS interval: <0.10 seconds
Correct Answer : A,B,D
A. Irregularly irregular: Atrial fibrillation is characterized by an irregularly irregular rhythm.
B. No identifiable P waves: P waves are typically absent in atrial fibrillation or may be difficult to identify.
C. PR interval is not typically measured in atrial fibrillation as it is not relevant to the rhythm.
D. Atrial rate not measurable: The atrial rate in atrial fibrillation is not measurable due to the rapid and irregular nature of the rhythm.
E. QRS interval is typically normal in atrial fibrillation and does not exceed 0.10 seconds.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
A. Hodgkin's disease is characterized by the presence of Reed-Sternberg cells, which are large, abnormal lymphocytes.
B. Enlarged, painless lymph nodes, particularly in the neck, armpits, or groin, are characteristic of Hodgkin's disease.
C. Skeletal pain is not a typical symptom of Hodgkin's disease. Patients may experience generalized symptoms such as fatigue, fever, and weight loss.
D. Hodgkin's disease has a relatively high cure rate, especially in comparison to other types of lymphomas. Advances in treatment have improved outcomes for many patients with Hodgkin's disease.
E. Philadelphia chromosome is associated with chronic myeloid leukemia, not Hodgkin's disease.
Correct Answer is ["A","B","D"]
Explanation
A. Irregularly irregular: Atrial fibrillation is characterized by an irregularly irregular rhythm.
B. No identifiable P waves: P waves are typically absent in atrial fibrillation or may be difficult to identify.
C. PR interval is not typically measured in atrial fibrillation as it is not relevant to the rhythm.
D. Atrial rate not measurable: The atrial rate in atrial fibrillation is not measurable due to the rapid and irregular nature of the rhythm.
E. QRS interval is typically normal in atrial fibrillation and does not exceed 0.10 seconds.
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