Commission for Case Manager Certification (CCMC) Exam 2026 – 400 Free Practice Questions to Pass the Exam

Medicare guidelines specify a hematocrit percentage that must be met or exceeded for coverage of home oxygen therapy in cases of erythrocythemia, a condition characterized by an increased number of red blood cells. The correct answer indicates that a hematocrit level of 56% or higher is necessary to qualify for this coverage.

This criterion is based on the understanding that elevated hematocrit levels can indicate a risk of complications related to poor oxygen delivery to tissues. In the context of chronic lung disease or other respiratory conditions, the body may produce more red blood cells to compensate for low oxygen levels, which can lead to increased blood viscosity and related health issues. Therefore, Medicare sets this threshold to ensure that only patients with significant erythrocythemia, who are at risk of complications from their condition, qualify for assistance with oxygen therapy.

The specified hematocrit level is based on research and clinical guidelines that assess when supplemental oxygen is medically necessary, ensuring that the coverage focuses on patients who genuinely require intervention to improve their oxygenation and overall health.