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

Answer and Explanation

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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Correct Answer is A

Explanation

A. Atrial flutter is characterized by a regular rhythm with rapid atrial contractions (flutter waves) that have a sawtooth appearance on the ECG tracing.
B. Ventricular tachycardia typically presents with a wide QRS complex and is often associated with hemodynamic instability.
C. Atrial fibrillation is characterized by irregularly irregular rhythm with no distinct P waves and irregular ventricular response.
D. Sinus tachycardia is characterized by a regular rhythm with a heart rate greater than 100 beats per minute originating from the sinus node.

A. Apply heat to painful areas. B. Place the patient on bedrest. C. Have the patient cough and deep breathe every 2 hours. D. Encourage 3 to 4 liters of fluid daily.

Correct Answer is D

Explanation

A. Heat application may provide comfort for localized pain but does not address the underlying cause of hypercalcemia, which requires systemic management.
B. While rest may be beneficial for certain conditions, it does not directly address hypercalcemia. Encouraging mobility and adequate fluid intake is typically more effective.
C. Coughing and deep breathing exercises are important for preventing respiratory complications after surgery but are not relevant for managing hypercalcemia.
D. Increasing fluid intake promotes hydration and enhances urinary calcium excretion, helping to lower serum calcium levels and minimize complications associated with hypercalcemia

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Which of the following are rules for atrial fibrillation? Select all that apply

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