Management of Prolonged QT Interval and Electrolyte Imbalance

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Questions and Answers

Which of the following is the most appropriate initial management for the 55-year-old man with tall peaked T waves?

  • Insulin dextrose infusion
  • Nebulized salbutamol
  • Intravenous calcium gluconate (correct)
  • Haemodialysis

What would be the most appropriate intervention for a patient with hypocalcemia, hypophosphatemia, and normal PTH?

  • Iv calcium (correct)
  • Cinacalcet
  • Vitamin D supplementation
  • Oral calcium

In the context of prolonged QT interval and normal PTH, what treatment is indicated?

  • Phosphate supplementation
  • Vitamin D analogs
  • Oral calcium
  • Magnesium sulfate (correct)

What is the most appropriate intervention for a patient with symptomatic severe hyperkalemia?

<p>Insulin dextrose infusion (B)</p> Signup and view all the answers

What is the best immediate step in management for the 50-year-old man with diabetes, hypertension, and chronic kidney disease, presenting with a potassium level of 6.5 mmol/L?

<p>Intravenous calcium gluconate (A)</p> Signup and view all the answers

Which treatment is indicated in case of severe hyperkalemia, as indicated by ECG findings of tall peaked T waves?

<p>Calcium Gluconate (D)</p> Signup and view all the answers

What ECG finding is associated with hyperkalemia?

<p>Peaked T wave (D)</p> Signup and view all the answers

When is intravenous calcium gluconate indicated in the management of a patient?

<p>Severe hyperkalemia (D)</p> Signup and view all the answers

What is the appropriate treatment for a patient with severe hypocalcemia that is associated with cardiac arrhythmias?

<p>Calcium Gluconate (B)</p> Signup and view all the answers

What is the normal range of potassium in the blood?

<p>3.5-5.1 mmol/L (B)</p> Signup and view all the answers

Which lab result indicates severe hyperkalemia?

<p>Potassium level of 6.5 mmol/L (D)</p> Signup and view all the answers

What is the ECG finding associated with severe hyperkalemia?

<p>Peaked T wave (B)</p> Signup and view all the answers

What is the appropriate management for a patient with hyperkalemia and ECG findings of wide QRS complex?

<p>Sodium bicarbonate (D)</p> Signup and view all the answers

In a patient with severe hypocalcemia, what other ECG finding might be present apart from arrhythmias?

<p>Prolonged QT interval (A)</p> Signup and view all the answers

What additional lab result may provide evidence for the diagnosis of severe hypocalcemia?

<p>Calcium level less than 1.9 mmol/L (C)</p> Signup and view all the answers

What is the role of dialysis in the management of hyperkalemia?

<p>To remove potassium from the body (D)</p> Signup and view all the answers

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