Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/29/2025

Management of Secondary Polycythemia in Smokers

Initial Assessment and Diagnosis

  • Smoking directly contributes to elevated hemoglobin through carbon monoxide exposure leading to increased carboxyhemoglobin formation, in a female smoker with a hemoglobin of 19 g/dL 1, 2

Immediate Management Priorities

Smoking Cessation

  • The American College of Cardiology recommends immediate smoking cessation counseling using the 5 A's approach (Ask, Advise, Assess, Assist, Arrange) in smokers with elevated hemoglobin 3
  • Pharmacotherapy options such as nicotine replacement therapy, bupropion, and varenicline should be offered to smokers with elevated hemoglobin 3, 4
  • Smoking cessation can normalize hemoglobin levels within weeks to months and significantly reduces cardiovascular risk in smokers with elevated hemoglobin 5

Diagnostic Workup

  • Arterial blood gas should be performed to assess oxygen saturation and rule out hypoxemia in smokers with elevated hemoglobin 1
  • Echocardiogram should be performed to assess for cardiac causes of secondary polycythemia in smokers with elevated hemoglobin 6

Treatment Approach

Address Underlying Causes

  • The American College of Cardiology recommends smoking cessation as the cornerstone of treatment for secondary polycythemia in smokers 3, 4
  • Underlying cardiopulmonary disease should be evaluated and treated to reduce hypoxemia in smokers with elevated hemoglobin 6
  • Blood pressure should be monitored closely, as hypertension often coexists and compounds cardiovascular risk in smokers with elevated hemoglobin 6

Reduce Thrombotic Risk

  • Low-dose aspirin should be offered to reduce thrombotic risk in smokers with elevated hemoglobin if no contraindications exist, as recommended by the Journal of the American Geriatrics Society 7
  • Target blood pressure should be <140/80 mmHg to further reduce cardiovascular risk in smokers with elevated hemoglobin 7

Follow-up and Monitoring

  • Continued smoking cessation support with regular follow-up visits is essential for smokers with elevated hemoglobin, as recommended by the American College of Cardiology 3