According to a new recommendation from the American Heart Association, children who have been diagnosed with Attention Deficit Hyperactivity Disorder (ADHD), also known as Attention Deficit Disorder (ADD), should be screened for heart problems with an electrocardiogram (EKG) before they are prescribed drugs such as Ritalin.

Drugs used to treat ADHD are stimulants, having the potential to increase both heart rate and blood pressure. In children with heart conditions, ADHD drugs could potentially make them more vulnerable to cardiac arrest and other heart problems. A Food and Drug Administration review of its own FDA databases found reports of 19 sudden deaths in children treated with ADHD drugs and 26 reports of other problems including strokes and rapid heart rates between 1999 and 2003.

The Cleveland Clinic estimates that the annual rate of sudden cardiac deaths among the approximately 2.5 million children in the US who take medication for ADHD is approximately one to two children per 100,000.

Prior to prescribing ADHD medication, the AHA now recommends that doctors screen children for any personal or family history of heart problems, and perform a thorough heart exam including an EKG. The AHA also recommends testing for children already taking ADHD drugs. Such testing can help identify any previously undiagnosed heart issues and detect abnormal heart rhythms that may lead to a sudden heart attack.

ADHD medications now have labels to warn patients of the possible risks to individuals who have heart defects or other heart problems.

Questions your doctor should ask in a heart screening exam:

• Has your child ever fainted during exercise or similar physical activity?

The American Heart Association has agreed with a recent study that found giving compression-only CPR (without mouth-to-mouth assisted breathing) works just as well as standard CPR for sudden cardiac arrest in adults.

CPR stands for cardiopulmonary resuscitation which previously included mouth-to-mouth resuscitation in combination with chest compressions. Now, for adults who suddenly collapse, a new study provides evidence that chest compression is just as effective. In fact, interrupting chest compressions to perform mouth-to-mouth resuscitation may do more harm than good.

What is in your drinking water? When you think of the possible contaminants that could be in your water, you don’t usually think of pharmaceutical drugs. But an Associated Press investigation has uncovered a disturbing concoction of pharmaceuticals in the municipal drinking water of at least 41 million Americans.

Hike up to remote areas of snow-covered Crater Lake National Park and you may be miles from civilization, but don't eat the snow because it contains industrial PCBs, the banned pesticide DDT and at least two currently used pesticides.

Go fly-fishing in Golden Lake at Mount Rainier National Park but don't eat the trout because they carry relatively high levels of toxic flame retardant.

Or try fishing Montana's spectacular Glacier National Park but make sure you don't eat them either because the DDT in them is higher than levels found in fish studies from Africa, even though the United States phased out DDT production in 1972 and Africa still uses it for mosquito control.

The Humane Society of the United States has filed suit against the U.S. Department of Agriculture (USDA) to close a dangerous loophole in the agency's regulations that contributed to the recent recall of more than 143 million pounds of beef. The recall was initiated after an HSUS undercover investigation documented shocking acts of animal cruelty to non-ambulatory or "downer" cattle at a slaughterhouse in Chino, California. Watch the undercover video now

About 40,000 patients of the Endoscopy Center of Southern Nevada in Las Vegas are being urged to get tested for bloodborne diseases like hepatitis and HIV. It is reported that anesthesiologists exposed patients to infection by using multiple-dose vials of medications and re-using syringes between individuals.

Patients were exposed to these unsafe injections between March 2004 and January 2008. So far, doctors have found six acute cases of hepatitis C in patients from the center.

HealthGrades has released its 2008 rankings of America’s 50 Best Hospitals -- hospitals that have demonstrated superior clinical outcomes for the most consecutive years. Hospitals cannot apply for this independent analysis, and they cannot opt-in or out of being rated.

To identify the top hospitals for 2008, HealthGrades researchers analyzed approximately 100 million hospitalization records from nearly 5,000 hospitals, from the years 1999 to 2006.

The U.S. Environmental Protection Agency is asking for public comment on a list of 104 possible drinking water contaminants that may need to be regulated in the future to ensure the continued protection of drinking water. Under the Safe Drinking Water Act, EPA includes on the draft Contaminant Candidate List (CCL) currently unregulated contaminants that are known or anticipated to occur in public water systems and which may require regulation. This draft CCL, which is the third such listing, lists 93 chemical contaminants or groups and 11 microbes, and describes the process and basis for selecting these contaminants.