A dangerous hemoglobin level is hemoglobin greater than 18.5 g/dL in men and 16.5 g/dL in women, Medscape states. This is known as polycythemia.
Someone suffering from polycythemia is at risk for blood clots, heart conditions, kidney dysfunction and spent marrow. When someone has a high hemoglobin count, their blood thickens, which makes it harder for the heart to pump it around the body. In severe cases, this can cause pulmonary embolisms, strokes and heart attacks, all of which may result in death.
In addition, a man with less than 13.5 g/dL and a woman with less than 12 g/dL hemoglobin is at risk of anemia, although this is rarely problematic, according to Mayo Clinic.Learn More
MedlinePlus states that a normal hematocrit level typically ranges from 40.7 to 50.3 percent in men and 36.1 to 44.3 percent in women. In children, a normal hematocrit ranges from 45 to 61 percent in newborns and 32 to 42 percent in infants.Full Answer >
Normal serum creatinine levels range between 0.6 to 1.4 milligrams per deciliter in men and 0.5 to 1.2 milligrams per deciliter in women. A creatinine level higher than these ranges is sometimes an early sign that the kidneys are not functioning properly, reports the National Kidney Foundation.Full Answer >
An elevated hemoglobin count may impair circulation and disrupt the adequate delivery of oxygen to the tissues, possibly leading to peripheral cyanosis and impaired mental function due to poor cerebral circulation, according to SteadyHealth. Elevated hemoglobin also increases the risk of thrombo-embolism, a type of blood clot.Full Answer >
Normal hemoglobin for men is 13.5 to 17.5 grams per deciliter (g/dl), according to Mayo Clinic. For women, the normal range is 12.0 to 15.5g/dl. Normal hematocrit for men is 38.8 to 50 percent. For women, the normal range is 34.9 to 44.5 percent. These normal values may change slightly according to the laboratory that analyzes the blood.Full Answer >