A nurse is reviewing a cardiac rhythm strip of a client who has atrial flutter.
Which of the following findings should the nurse expect?
Progressively longer PR durations.
Undetectable P waves.
A saw-tooth pattern with an atrial rate of 250 to 400/min.
Absent PR intervals with a ventricular rate of 40 to 60/min.
The Correct Answer is C
A saw-tooth pattern with an atrial rate of 250 to 400/min is a characteristic finding on a cardiac rhythm strip of a client who has atrial flutter.
Choice A is incorrect because progressively longer PR durations are characteristic of a Mobitz type I second-degree AV block, not atrial flutter.
Choice B is incorrect because undetectable P waves are characteristic of atrial fibrillation, not atrial flutter.
Choice D is incorrect because absent PR intervals with a ventricular rate of 40 to 60/min are characteristic of third-degree AV block, not atrial flutter.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Furosemide is a loop diuretic that can cause loss of potassium from the body.
A potassium level of.2 mEq/L is considered low (hypokalemia) and can be a contraindication for receiving the medication.
Sodium 136 mEq/L is within the normal range and is not a contraindication for receiving furosemide.
B) Creatinine 0.8 mg/dL is within the normal range and is not a contraindication for receiving furosemide.
D) BUN 18 mg/dL is within the normal range and is not a contraindication for receiving furosemide.
Correct Answer is C
Explanation
Metformin should be withheld for a minimum of 48 hours after the procedure.
This is because metformin can increase the risk of contrast-induced acute kidney injury (CI-AKI) when undergoing contrast imaging.
Choice A, Clopidogrel, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
Choice B, Furosemide, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
Choice D, Carvedilol, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
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