A nurse is reviewing a patient's electrocardiogram (EKG) and notes that the T waves appear inverted. The nurses suspect which of the following as the most likely condition? 


•Inverted or depressed T waves on the patient's EKG indicate tissue ischemia or decreased oxygen to the tissues.

Incorrect options:

•Myocardial infarction typically manifests as changes to the ST segment of the patient's EKG, not the T wave. 

•Hypertension is a condition that cannot be directly seen on the patient's EKG. Because of this, changes to the T waves cannot be linked to hypertension.

•Hyperkalemia is an elevated serum potassium level. This electrolyte imbalance typically causes peaked T waves, not inverted T waves.

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