PM&R physicians are medical doctors who have completed training in the specialty of Physical Medicine and Rehabilitation (PM&R), and may be subspecialty certified in Brain Injury Medicine, Hospice and Palliative Medicine, Neuromuscular Medicine, Pain Medicine, Pediatric Rehabilitation Medicine, Spinal Cord Injury Medicine, and/or Sports Medicine.
Quick Answer. Causes of high hemoglobin include increase in red blood cell production, smoking, certain medications and bone marrow disease. Some conditions, such as heart failure, liver cancer, kidney cancer and dehydration can also lead to high hemoglobin count, as stated by Mayo Clinic. Continue Reading.
High hemoglobin with a high RBC count and high hematocrit indicates polycythemia. Some causes include: 1  Lung (pulmonary) disease âif someone is unable to breathe in and absorb sufficient oxygen, the body tries to compensate by producing more red blood cells.he hemoglobin test may be ordered during a general health examination or when a person has signs and symptoms of a condition affecting red blood cells such as anemia or polycythemia. Some signs and symptoms of anemia include: 1  Weakness or fatigue. 2  Lack of energy. 3  Fainting. 4  Paleness (pallor). 5  Shortness of breath.