RecruitingDevice studyEffectiveness of Small Phlebotomy Tubes in Reducing Blood Transfusions in Adult Medical Intensive Care Unit and Intermediate Care Unit Patients With AnemiaThe purpose of this study is to evaluate the effectiveness of small phlebotomy tubes to reduce RBC transfusions in medical intensive care unit (ICU) and Intermediate care unit (IMU) patients with low hemoglobin compared with standard size tubes, to compare the intervention and the control groups in regards to: ICU length of stay (LOS), ICU mortality, hospital LOS, and hospital mortality and to assess the acceptability of small phlebotomy tubes in adult ICU and IMU patients.