Palpitation laboratory findings

Laboratory investigations are often performed when a systemic/pharmacological cause of palpitations is suspected. These would be directed towards diagnosing kidney problems, pheochromocytoma, thyroid dysfunction and substance abuse.

• Laboratory investigations are often performed when a systemic/pharmacological cause of palpitations is suspected.
• Laboratory Investigations that have proven to be diagnostic include :^[1]
  1. A complete blood count – Anemia
  2. Renal function test – Acute kidney injury, chronic kidney disease
  3. Urine catecholamines – Pheochromocytoma
  4. Thyroid function tests – Hypothyroidism, hyperthyroidism
  5. Blood sugar levels – Hypoglycemia
  6. Serum drug levels – Substance abuse (cocaine,amphetamine,and MDMA)