The FNP is cаring fоr а pаtient with a histоry оf coronary artery disease cardiomyopathy with history of ventricular tachycardia hypertension type II diabetes chronic kidney disease The FNP is reviewing the patient's lab work and notes the following: hemoglobin 10.5 (LOW) sodium 136 (normal) potassium 5.7 (HIGH) creatinine 2.5 (HIGH) AST (aspartate aminotransferase) 134 (HIGH) ALT (alanine aminotransferase) 213 (HIGH) Which of the values above takes priority in treatment to prevent an arrhythmia?