What is the Bone Denisty exam(DEXA scan)?

The bone density test or scan, is designed to check for osteoporosis( a disease that occurs when the bones become thin and weak). Osteoporosis happens when the bones lose calcium and other minerals that keep the bones strong. Osteoporosis begins after menopause in many women, and gets worse after age 65, often resulting in serious fractures. A bone density scan measures the strength of your bones and determines the risk of fracture.

Today, most people will get a bone density scan from a machine using a technology called Dual Energy X-ray Absorptiometry or DEXA for short. This machine takes a picture of the bones in the spine, hip, total body and wrist, and calculates their density. If a DEXA machine is not available, bone density scans can also be done with dual photon absorptiometry (measuring the spine, hip and total body) and quantitative computed tomography scans (measuring the spine). Bone density scanners that use DEXA technology to just measure bone density in the wrist (called pDEXA scans) provide scans at some drugstores. Yet these tests are not as accurate as those that measure density in the total body, spine or hip--where most fractures occur

To take a DEXA bone density scan, the patient lies on a bed underneath the scanner, a curving plastic arm that emits x rays. These low-dose x rays form a fan beam that rotates around the patient. During the test, the scanner moves to capture images of the patient's spine, hip or entire body. A computer then compares the patient's bone strength and risk of fracture to that of other people in the United States at the same age and to young people at peak bone density. Bones reach peak density at age 30 and then start to lose mass. The test takes about 20 minutes to do and is painless.

The DEXA bone scan exposes the patient to only a small amount of radiation--about one-fiftieth that of a chest x ray, or about the amount you get from taking a cross-country airplane flight.

BP is facing a bill of up to $34bn from the Gulf of Mexico disaster

BP is facing a bill of up to $34bn from the Gulf of Mexico disaster after US senators demanded the oil company deposited $20bn into a ring-fenced account to meet escalating compensation costs.

The sum dwarfs many analysts' previous estimates, shared by BP, that put the cost of the clean-up effort and payment of damages to affected communities, such as fishermen, closer to a total of $5bn.

Shares in BP nose-dived by more than nine per cent today as investors took fright at the demand by the 54 Democratic senators, who represent a majority in the US upper house. The company is now worth almost half what it was before the accident of just under two months ago.

BP already faces up to $14bn in civil penalties, payable under US environmental law, assuming the leak is plugged in August. These punitive damages are directly linked to the size of the spill – already estimated at being up to eight times worse than the Exxon Valdez disaster in 1989 – with BP liable for up to $4,300 for each barrel-worth spilt.

Senate leaders insisted the $20bn ring-fenced account should be exclusively for "payment of economic damages and clean-up costs" and should not be seen as a cap on BP's other legal liabilities. With punitive damages pending too, the theoretical total of $34bn is equivalent to more than half the corporation tax paid by all British companies last year.

Tony Hayward, chief executive of BP, and other directors of the company, will meet Barack Obama at the White House on Wednesday prepared to offer concessions in the hope of taking the sting out of mounting political attacks on the company.

BP will be in "listening mode", willing to cut its next dividend, worth about $2.5bn, possibly paying the cash into the clean-up fund. It will also reiterate its commitment to paying all legitimate claims arising from the disaster. But the company does not believe that the demand by the senators to stump up $20bn is justified.

Executives were also alarmed by the White House's insistence last week that BP must pay the wages of rig workers laid off by other firms because of the six-month moratorium on deepwater drilling in the gulf. If pursued, the company fears it would be exposed to potentially limitless claims from anyone affected by the disaster, which would eventually bankrupt the company. The company hopes that President Obama's statement, following the meeting with BP, will draw back from the demand.
Hayward, who was in Houston today overseeing the spill response, hosted a conference call with his board to discuss BP's next move. The company had indicated that it would wait as usual until close to its next results announcement, on 27 July, to decide whether or not to pay its next quarterly dividend. But it is now set to announce its intentions sooner, perhaps as early as Thursday. It is understood BP could use the dividend as a bargaining chip in its talks with the White House.

Obama today risked the wrath of families of 9/11 victims by comparing the gulf spill to the 2001 terrorist attacks, as pressure intensified on the White House to show greater urgency over the crisis.

Ahead of a trip to Louisiana and a televised address to the nation tomorrow, Obama said the spill, the worst environmental disaster in US history, would, like the 2001 terror plots, continue to influence the country for decades to come. Some people who lost relatives in the 9/11 attacks rejected the comparison. "I think he's off-base," said Jim Riches, a former New York fire department deputy chief, whose son died at the World Trade Centre. "These were 9/11 murders … not something caused by people trying to make money."

Some Occupational Lung Diseases and Their Causes

* Asbestosis, caused by exposure to asbestos particles. Often found among people who worked in shipyards, asbestos mines, and factories that refined or used asbestos to manufacture products.
* Black lung (Coalworker's pneumoconiosis) which affects coal workers
* Chronic Beryllium disease (CBD), which affects workers in a variety of metallurgical occupations
* Byssinosis (brown lung disease), often occurs in cotton and textile workers when bacteria released from cotton or other materials is inhaled and grows with the lungs. This is often associated with poor ventilation systems.
* Hypersensitivity pneumonitis, this can affect people who work in office buildings whose air-conditioning systems are contaminated by certain fungi and bacteria.
* Occupational asthma, can affect people who work with a variety of materials. This includes animals (dander), carbamates (urethanes), dyes, epoxy resins and enzymes used in detergent, leather goods, latex, and automotive paints
* Silicosis often developed by people who worked with clay, sand and stone dust including miners, stone cutters and sandblasters.

Bad aspects in American health care system

1. Most physicians do not set their own fees. Medicare, Medicaid, and private health plans set these fees, which often have little to do with the costs of doing business.

2. Congress each year sets Medicare fees through a formula called SGR (Sustainable Growth Rate), which this year calls for a 20% reduction in overall physician fees.

3. If SGR were to go through as to proposed, surveys indicate at many at 30% of physicians will not accept new Medicare patients because new Medicare fees will not cover expenses.

4. The next political crisis will be limited access to doctors; this is already occurring in Boston, where waiting times to see doctors are 2 to 3 times the national average for comparable cities.

5. Medicare on average pays 80% of what it costs to provide care: hospitals and doctors make up the difference by negotiating higher payments from the much maligned private plans.

6. An estimated 10% of health costs are due to the practice of “defensive medicine,” whereby doctors order extra tests and procedures in anticipation of defending themselves again future malpractice lawsuits.

7. Passing federal laws permitting patients to enroll in plans and “portability” of plans across state lines would make a public option unnecessary and would render private plans “competitive.”

8. Ending “community ratings,” which force the young to pay the same premiums as older individuals, and reducing “standard benefit plans, “ which often include unnecessary benefits, would reduce premiums for the young and decrease the number of uninsured.

9. The primary care shortage is real and growing because medical students are smart and are not choosing to work twice as long as specialists at 1/2 the pay; doubling Medicare pay for primary office visits would be a good start for relieving the crisis.

10. The surest way to reduce costs is having patients spend more of their own money and making them more responsible for their health, which is the premise of lower-premium health savings accounts and high deductible plans.

Treatments of Dandruff

1. Regularly cleans all affected parts

Shampoo the scalp and affected parts with any of the many commercial preparations available for dandruff. Many lines are excellent. Selenium sulphide (Selsun) suspension shampoo and zinc pyrithione 2 % (like Head & Shoulders) preparation (Zp11 dressing and shampoo or dangard) are also very effective. Instructions usually accompany the commercial package.

2. Simple general measures are often helpful

These include eating a sensible balanced diet avoiding, excess sweets and carbohydrates or spicy food, hot drinks and alcoholic beverages. Get adequate rest at night (every night). Follow sensible working hours and avoid foolish excesses. Adequate recreation helps, and the basic of simple hygiene are important Infections, emotional stresses and upsets, constipation, and dietetic indiscretions should be attended to. Regular Scalp massage may help.

Care of eyelashes in Dandruff
Dandruff (seborrhea) of the eyelashes can be both annoying and hard to treat. Eye doctors like to recommend scrubbing the lashes with baby shampoo on a cotton swab. This method may be worth a try, but it often fails. Cortisone-based lotions should be used close to the eye only under medical supervision since continuous exposure of the eye to cortisone can lead to serious eye problems.

Further Treatments

If these simple measures don’t assist, seek professional help form the family physician. Other lines of treatment he may suggest could include:

* Creams containing corticosteroids

(Equal to 0.5 to 1.0 % hydrocortisone). These often reduce the inflammation and excessive discharges.

* Creams containing Sulphur (3-5%) and Salicylic acid (2-3%) are popular and often satisfactory. they are often used as a cream the night before the shampooing. If sores develop indicating infection form other growing germs, these must be treated independently.

In over weight people where the condition arises between folds of fat rubbing together, the physician may check for diabetes. Castellani’s paint (a bright magenta-coloured preparation) applied will often cure the irritating cracks and fissures that commonly develop in these areas. Pre-cleansing the area with soap and water is essential( but all traces of soap must be removed afterwards.)

* Antifungal creams are often effective, apparently because they reduce the number of yeast organisms living on the skin. Over-the-counter creams include 1% clotrimazole cream and miconazole cream 2%. Antifungal creams also are applied once or twice a day.

Almond as a source for calcium

Over all, you would still get some calcium by eating almonds, but at a lot higher calorie cost than from other foods, like milk.

The amount of calcium in a cup of whole almonds, 378 milligrams, is slightly more than in a cup of milk, about 300 milligrams, but you would be consuming about eight times as many calories.

Facts about Atrial Septal Defect - Mayo Clinic

Harold Burkhart, M.D., a cardiovascular surgeon at Mayo Clinic, describes the congenital heart condition atrial septal defect (ASD) and discusses treatment options for children and adults.