No, each woman should be assessed by her doctor about the risk of developing osteoporosis and be referred for a bone density measurement if necessary.

DEXA or bone densitometry is a test, which determines if a patient has osteoporosis (thin, weak bones) or osteopenia (early stages of osteoporosis). The test takes 5 minutes and patients are required to lie down on a cushioned table while an x-ray is taken. The results are printed right away and forward to your doctor. If you have one annually, our computer system will graph your progress.

In the new 2006 medical textbook titled Vitamin D: New Research, published by Nova, you will find a chapter written by Waterhouse JC, Marshall TG, Fenter B, Mangin M, Blaney G on High levels of active 1,25-dihydroxyvitamin D despite low levels of the 25-hydroxyvitamin D precursor - Implications of dysregulated vitamin D for diagnosis and treatment of Chronic Disease A copy of the chapter can be found at this Internet address:

A diagnosis of osteoporosis is defined in terms of standard deviations from the average peak bone mass. The World Health Organization defines osteoporosis as a bone mineral density 2.5 standard deviations below that of a normal healthy 30 year old. Those who are between 1 and 2.5 standard deviations below the norm are defined as having osteopenia or low bone mass. Individuals within one standard deviation of the 30-year-old norm are considered to be at low risk for osteoporotic fracture.

The Bone Density Scan can accurately predict who is at increased risk for fractures and be used to accurately follow those with osteoporosis for worsening or improvement. It can be used to guide treatment of this potentially devastating disease. The Bone Density Scan uses electron beam tomography to measure bone density. Quantitative Computed Tomography is the GOLD Standard for bone densitometry.

The bone densitometer is like a large examination table. It is padded and comfortable. Your name, age, height, weight, and ethnicity will be entered into the computer before your test. This information is used to compare your results to a normal reference group. You will be asked to lie on your back, remaining in your normal clothing in most cases. Belt buckles, metal or thick plastic buttons, and metal jewelry will need to be removed from the region being examined.

With normal aging, underlying medical conditions, use of medications and family history of osteoporosis/fractures, bones can weaken and fracture. The most common cause of bone weakening is osteoporosis. As the bones weaken, the probability of fractures increases. In the U.S. today, 10 million people already have the disease and 18 million more have low bone mass resulting in an increased risk for the disease and fracture. Osteoporosis is responsible for more than 1-2 million fractures per year.

Recent guidelines issued by the National Osteoporosis Foundation recommend bone mineral density testing for the following individuals:

To understand this first we need to understand "Osteoporosis". Osteoporosis is the condition of having weak or thin bones, which are more susceptible to fracture, even with minimal injury. Osteoporosis can result in vertebral fractures, which cause a stooping over of the spine. Osteoporosis can also increase the risk of hip fractures, a major problem for older people.

Iron deficiency means that a woman does not have sufficient oxygen carrying capacity in her blood - so that she feels tired and has reduced endurance performance. Anorexia means that a woman will have very few reserves of body fat or muscle glycogen which will also affect her ability to train and achieve peak performance. Low bone density puts that woman at a risk of stress fractures and fractures which will limit her ability to be involved in physical activities.

Yes. Research shows that female tea drinkers had much stronger bones than non-tea drinkers. Tea drinkers had 5% more bone mineral density at the lumbar spine, indicating a 10% to 20% lower fracture risk. Researchers speculate that isoflavonoid chemicals in tea may have a weak estrogenic effect, reducing bone deterioration and osteoporosis risk. Click here for more on tea's health benefits.

The federal 1997 Balanced Budget Act passed by Congress includes a provision that outlines how Medicare is to cover densitometry testing. Uniform coverage of bone mass measurements under Medicare Part B went into effect July 1, 1998. Previously, interpretation of guidelines on this subject was left up to the individual carriers. The Act authorizes coverage for testing for individuals who fall into the following categories: These benefits apply to all Medicare plans, including managed care plans.

All the SERMs coming into the marketplace have only been studied for only a short period of time. No one knows the actual long-term effects of these drugs. There are ongoing studies that may help with this dilemma. The suggestion here is that women should wait until more data is available regarding raloxifene prevention. It is estimated that close to 20 million women who are at high risk for breast cancer could benefit from its use.

The density of redwood is approximately 26 pounds per cubic foot. The standard Precision Board density for sandblasting is 15 pounds per cubic foot. A 1" thick 4'x8' sheet of PB-15 weighs 40 pounds. A similar sheet of redwood weighs almost twice as much.

A) DEXA (dual energy x-ray absorptiometry) is the gold standard for osteoporosis detection. Bone densitometry is a safe, painless study that measures the amount of bone mineral content in specific areas of the body. The exam uses small amounts of x-ray radiation to produce images of the spine, hip or wrist, where most osteoporotic fractures occur. The x-ray is composed of two energy levels that are absorbed differently by bones.

This is not an examination that requires you to have an empty stomach, drink a certain amount of water, or any other such pre-examination preparation on your part.

The exam requires about 15 minutes. Generally, DEXA scans of your lumbar spine and hip are obtained. The computer then calculates the average density of bone in the vertebral bodies or hip and compares it with a normal range. Your score is then compared with "normal for age" values in a chart and the result stated in standard deviations above or below normal for age.

Pre-telescopic filters are described by their density, their transmission, and their extinction in astronomical magnitudes. Transmission is simply the proportion of transmitted to incoming light and is usually expressed as a percentage. Optical Density is calculated from the transmission by: Notice should be given that in the cases of Photographic/Visual grade filters, this assumes that the extinction in infrared and ultraviolet is similar to that in the visual band.