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:
A warm left leg is a normal finding and does not require immediate intervention. Warmth indicates adequate circulation to the limb.
Choice B rationale:
A pedal pulse strength of 2 in the left leg indicates diminished pulse but does not require immediate intervention. The nurse should continue to monitor the pulse and report any significant changes to the healthcare provider.
Choice C rationale:
The client's report of pain in the foot of the left leg is an expected finding due to the fractured left femur. Pain is a subjective symptom, and the nurse should address the client's pain appropriately but not intervene immediately based on this finding.
Choice D rationale:
This is the correct choice. A capillary refill time of 3 seconds in the left foot suggests impaired circulation, which could be indicative of compartment syndrome or other circulation-related issues. The nurse should intervene immediately by notifying the healthcare provider to prevent further complications.
Correct Answer is A
Explanation
Choice A rationale:
Applying clean gloves when removing the old dressing from the catheter site is essential to prevent infection and maintain an aseptic technique during peritoneal dialysis catheter care. Gloves protect both the nurse and the patient from potential contamination.
Choice B rationale:
Cleansing the area by using a circular motion beginning at the catheter site and moving outward is not the correct technique. When caring for a dialysis catheter, the nurse should cleanse the site using an outward, circular motion starting from the insertion site to minimize the risk of contamination.
Choice C rationale:
Using warm water to cleanse the catheter site is not recommended. The peritoneal dialysis catheter site should be cleaned with an appropriate antiseptic solution or disinfectant, as warm water alone may not effectively remove bacteria or prevent infections.
Choice D rationale:
Placing an occlusive dressing over the catheter site after cleaning is not the standard practice for peritoneal dialysis catheter care. Typically, a clean, dry dressing is applied to the catheter site after cleaning to keep it clean and dry, but it should not be occlusive.
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