A nurse is assisting with collecting data on a client who is on a continuous ECG monitor. The client's ECG tracing shows no identifiable P waves and an irregular ventricular rate. The nurseshould recognize the client is experiencing which of the following cardiac dysrhythmias?
Complete heart block
Atrial fibrillation
Sinus tachycardia
First-degree AV block.
The Correct Answer is B
a. Complete heart block: Complete heart block would typically present with a regular ventricular rate, but with no association between P waves and QRS complexes.
b. Atrial fibrillation: Atrial fibrillation is characterized by the absence of identifiable P waves and an irregular ventricular rate. The atria fibrillate, leading to chaotic electrical activity and an irregular ventricular response.
c. Sinus tachycardia: Sinus tachycardia is characterized by a regular ventricular rate and identifiable P waves. It is not associated with the absence of P waves.
d. First-degree AV block: First-degree AV block is characterized by a prolonged PR interval, but it does not result in the absence of P waves. The relationship between P waves and QRS
complexes is maintained.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
a. Tetany: A calcium level of 8 mg/dl is low and can be associated with tetany.
b. Constipation:This is associated with hypercalcemia as opposed to hypocalcemia
c. Negative Chvostek sign: A positive Chvostek sign is associated with hypocalcemia, not hypercalcemia.
d. Elevated blood pressure: Elevated calcium levels are not typically associated with elevated blood pressure. Hypertension is not a common manifestation of hypercalcemia.
Correct Answer is A
Explanation
a. “Managing my cholesterol will reduce my chances of having a stroke.”: High cholesterol is a risk factor for stroke, and managing it can help reduce the risk.
b. “My blood pressure needs to stay a little elevated for good blood flow to my brain.”:
Maintaining normal blood pressure is essential for preventing stroke, and elevated blood pressure is a risk factor for stroke.
c. “Using oral contraceptives provides me with protection from a stroke.”: Oral contraceptives, especially in the presence of other risk factors, can increase the risk of stroke.
d. “I can safely have up to 3 alcoholic drinks a day.”: Excessive alcohol consumption is a risk factor for stroke, and moderation is advised to reduce the risk.
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