A nurse is caring for a client who is experiencing acute kidney failure after a surgical procedure. Telemetry monitoring shows a widened QRS, frequent premature ventricular contractions, and a heart rate of 55/min. Which of the following electrolyte imbalances should the nurse identify?
Hyperkalemia.
Hypocalcemia.
Hyperglycemia.
Hypophosphatemia.
The Correct Answer is A
Choice A rationale:
The combination of widened QRS, frequent premature ventricular contractions (PVCs), and bradycardia (heart rate of 55/min) on telemetry monitoring suggests hyperkalemia. Elevated potassium levels in the blood can cause delayed repolarization of cardiac cells, leading to widened QRS complexes and PVCs. Bradycardia is another common manifestation of hyperkalemia.
Choice B rationale:
Hypocalcemia, characterized by low calcium levels in the blood, can lead to cardiac arrhythmias, but it typically presents with a prolonged QT interval rather than widened QRS complexes and PVCs.
Choice C rationale:
Hyperglycemia, which is high blood glucose levels, does not directly affect the electrocardiogram (ECG) parameters like QRS width or heart rate. It may have systemic effects, but it is not responsible for the ECG changes described in the scenario.
Choice D rationale:
Hypophosphatemia, or low levels of phosphate in the blood, can cause muscle weakness and may have systemic effects, but it is not associated with the specific ECG changes seen in hyperkalemia, such as widened QRS complexes and PVCs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Instructing the client to take deep breaths during the test is not appropriate for a thoracentesis. This procedure involves the insertion of a needle into the pleural space to drain fluid or air, and taking deep breaths could interfere with the accuracy and safety of the procedure.
Choice B rationale:
Assisting the client to a prone position prior to the test is also incorrect. During a thoracentesis, the client is usually seated upright or in a slightly forward-leaning position to allow better access to the pleural space and improve breathing.
Choice C rationale:
Informing the client that the new onset of a cough is expected following the test is not accurate. While a cough can be a possible side effect, it is not a common or expected outcome of a thoracentesis.
Choice D rationale:
Applying pressure to the client's puncture site after the test is complete is the correct action. This helps to prevent bleeding and reduce the risk of pneumothorax (collapsed lung) by promoting clot formation at the site of the needle insertion.
Correct Answer is C
Explanation
Choice A rationale:
The nurse should not cross the client's legs when sitting in the recliner following a total left hip arthroplasty. Crossing the legs can put strain on the operative hip and may increase the risk of dislocation or other complications.
Choice B rationale:
Providing a heating pad to the operative hip is not recommended. Heat can increase blood flow to the area and may lead to increased swelling and potential complications in the postoperative period.
Choice C rationale:
Placing a pillow between the legs when turning the client to their side is the correct action. This technique is known as the "abduction pillow”. or "wedge pillow.”. It helps maintain proper hip alignment and prevents the operated leg from crossing the midline, reducing the risk of dislocation and promoting healing.
Choice D rationale:
Having the client lean forward when assisting them out of the bed is not appropriate after a total left hip arthroplasty. Leaning forward can put strain on the hip joint and increase the risk of injury.
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