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Nursing Tip of the Day! – Critical Care Nursing

Category: Critical Care Nursing  Given that potassium (K+) is primarily located in the intracellular compartment, significant cell lysis from tissue injury, hemolysis, rhabdomyolysis or tumor lysis can increase serum K+ levels. 

Nursing Tip of the Day! – Critical Care Nursing

Category: Critical Care Nursing  Beta-2 receptor blockers and nonsteroidal anti-inflammatory drugs impair renin release. Heparin decreases aldosterone synthesis. For most patients, RAAS blockade with only a single agent confers a low risk of hyperkalemia. 

Nursing Tip of the Day! – Critical Care Nursing

Category: Critical Care Nursing  The medications that impair the RAAS are a major risk factor for elevated serum potassium (K+). Direct renin inhibitors, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers can all decrease renal K+ excretion. 

Nursing Tip of the Day! – Critical Care Nursing

Category: Critical Care Nursing  True hyperkalemia occurs as a result of increased extracellular potassium (K+) or decreased K+ excretion. Major risk factors for hyperkalemia include renal failure, diabetes mellitus and the use of medications that impair renal K+ excretion.