"RDW-CV" and "RDW-SD" are a measurement of the size of red blood cells, according to Med-Health.net. RDW-SD is an actual measurement, while RDW-CV involves some calculations using the RDW-SD deviation.
Coupled with the MCV, the mean corpuscular volume, these numbers can indicate the patient's state of health, notes Med-Health.net. For example, if RDW is normal, but the MCV is low, the patient could be anemic. If the RDW is normal, but the MCV is high, the patient could have something more serious, such as chronic liver disease. If both are high, it could indicate any number of things, including low vitamin b12, liver problems or diseases such as myelodysplastic syndrome.Learn More
The normal range for serum magnesium in the human body is 1.7 to 2.2 milligrams per deciliter, according to the National Institutes of Health. The NIH notes that it is wise to discuss the meaning of any specific results with the doctor who ordered the serum magnesium test.Full Answer >
According to the Centers for Disease Control and Prevention, the best way to maintain normal cholesterol levels is to eat a healthy diet, maintain a healthy weight, get adequate exercise and quit smoking. Adopting a healthy lifestyle not only helps to maintain normal cholesterol levels, but it also reduces instances of high cholesterol.Full Answer >
A normal serum calcium level ranges from 8.5 to 10.2 milligrams per deciliter, according to MedlinePlus. Because normal ranges sometimes differ based on the laboratory, samples and measurements used, it's best for patients to talk to their doctors about the meaning of individual results.Full Answer >
Normal levels on ALT blood tests range from 10 to 40 international units per liter, while scores between 10 and 34 international units per liter are normal for AST tests, states MedlinePlus. The tests measure the amount of specific enzymes, alanine transaminase and aspartate aminotransferase, in the body.Full Answer >