A nurse is reviewing the EKG strip of a client who has End Stage Renal Disease (ESRD) and has missed hemodialysis. Which of the following abnormalities on the client's EKG should the nurse interpret as a sign of hyperkalemia?
Prolonged P-R interval
Peaked T waves
Elevated ST segment
Inverted P wave
The Correct Answer is B
A. Prolonged P-R interval: A prolonged P-R interval may indicate an atrioventricular (AV) block or conduction delay, but it is not specifically associated with hyperkalemia.
B. Peaked T waves: Peaked T waves are a classic EKG finding in hyperkalemia. Hyperkalemia can affect cardiac repolarization, leading to tall, peaked T waves on the EKG.
C. Elevated ST segment: An elevated ST segment may indicate myocardial injury or ischemia but is not typically associated with hyperkalemia.
D. Inverted P wave: An inverted P wave may indicate atrial enlargement or conduction abnormalities but is not specifically associated with hyperkalemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Client develops petechiae on the arms, legs, and abdomen: Petechiae can indicate thrombocytopenia, which may be a complication of heparin therapy but is not an urgent concern unless severe or associated with bleeding.
B. Health care provider orders Coumadin 2.5 mg P.O. to begin today: Coumadin (warfarin) is often initiated as a bridge therapy or overlap with heparin therapy in pulmonary embolism management. This order is not necessarily inappropriate and may be part of the treatment plan.
C. Client develops slight ecchymosis at the venipuncture site: Ecchymosis at the venipuncture site can occur due to minor trauma during the insertion of IV lines or blood draws and is not necessarily indicative of a complication requiring immediate notification of the healthcare provider.
D. Client's partial thromboplastin time (PTT) is 70 seconds and the control is 25-40 seconds: A significantly elevated PTT indicates a potential overdose of heparin, putting the client at risk of bleeding complications. This finding warrants immediate notification of the healthcare provider for further evaluation and possible adjustment of heparin therapy.
Correct Answer is D
Explanation
A. 18% is inaccurate
B. 44% is inaccurate
C. 36% is inaccurate
D. According to the Rule of Nines:
Each arm is typically assigned 9% (4.5% for each arm). The chest and abdomen together are assigned 18%.
The upper back is assigned 9%.
The lower back is assigned 9%.
Each leg is typically assigned 18% (9% for each leg). Adding these percentages together for the described burns:
9% (each arm) + 18% (chest and abdomen) + 9% (upper back) + 9% (lower back) = 54%
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