Ordering Studies/Tests: Hyperkalemia

OVERVIEW

This page is dedicated to providing more information about how to consider which clinical studies/tests should be ordered for hyperkalemia.

Hyperkalemia is a medical condition that may require intervention (source)
WHAT ARE THE COMMON STUDIES/TESTS THAT CAN BE ORDERED FOR THIS MEDICAL PROBLEM?

In thinking about working up any medical problem it is important to appreciate that there are a finite number studies/tests that can be ordered. For the case of hyperkalemia here are the major studies/tests to keep in mind:

  • Electrocardiogram (EKG)
ELECTROCARDIOGRAM (EKG) EVALUATION

Hyperkalemia is actually responsible for causing a number of EKG abnormalities. As a result EKGs can be used to both diagnose and monitor hyperkalemia. Here are some examples of these findings:

Early EKG changes can include:

  • Peaked T waves
  • Widened QRS complex
  • Depression of ST segment

Late EKG changes can include:

  • Disappearance of T waves
  • Heart block
  • Sine wave (sinusoidal widened QRS complexes)
  • Cardiac arrest

 

 

 

Page Updated: 02.26.2018