Attention Deficit Hyperactivity Disorder (ADHD) is a condition that becomes apparent in some children in the preschool and early school years. It is hard for these children to control their behavior and/or pay attention. It is estimated that between 3 and 5 percent of children have ADHD, or approximately 2 million children in the United States. This means that in a ...

When sperm is deposited in the vagina, it travels through the cervix and into the Fallopian tubes. Conception usually takes place in the Fallopian tube. A single sperm penetrates the mother's egg cell, and the resulting cell is called a zygote. The zygote contains all of the genetic information (DNA) necessary to become a child. Half of the genetic information comes ...

Individuals with LFS are at increased risk for developing multiple primary cancers.

In today's litigious society, it can be easy for the nursing staff to become involved directly or indirectly in legal matters. However, just as the amount of cases has increased, there are some common themes among legal battles involving nursing practitioners that have stood out. By understanding some of the issues at work, nurses can avoid many of the trouble or ...

h4. Introduction Despite efforts made in 1962 and 1988 to better define the clinical parameters of migraine, concepts of the basic pathophysiologic mechanisms responsible for the disease have remained essentially unchanged until the last decade. Therapeutic efforts concentrated on countering the vasodilatory status of the cerebral circulation to which was attributed the clinical manifestations of migraine. During the past decade, however, ...

The endocrine system, along with the nervous system, functions in the regulation of body activities. The nervous system acts through electrical impulses and neurotransmitters to cause muscle contraction and glandular secretion. The effect is of short duration, measured in seconds, and localized. The endocrine system acts through chemical messengers called hormones that influence growth, development, and metabolic activities. The action of ...

Having a career as a Licensed Practical Nurse is a great start to immerse you in the nursing field relatively quickly, however, it can be limiting in the types of positions that are available to you. You may have found yourself with this license because you have never been able to take time enough away from your family or your job ...

h4. What is genetic mapping? Developing new and better tools to make gene hunts faster, cheaper and practical for any scientist was a primary goal of the Human Genome Project (HGP). One of these tools is genetic mapping, the first step in isolating a gene. Genetic mapping - also called linkage mapping - can offer firm evidence that a disease transmitted ...

h4. Introduction Osteoporosis remains a serious health problem for society. It is estimated that 36 million Americans, both men and women, suffer from the disorder, which is responsible for a high risk for serious fractures especially of the spine, hip and wrist. It is an insidious disease, sometimes referred to as the silent thief, as it slowly drains away bone mass, ...

h4. Introduction History This section is offered for background only, as it is very confusing and of limited value. Many years ago, the state of Florida recognized the importance of professional regulation. A system of regulation developed in which each profession was responsible for regulating its own kind. It soon became apparent that there were common issues among all of the ...

Dehydration means your body does not have as much water and fluids as it should. Dehydration can be caused by losing too much fluid, not drinking enough water or fluids, or both. Vomiting and diarrhea are common causes. Infants and children are more susceptible to dehydration than adults because of their smaller body weights and higher turnover of water and electrolytes. ...

h4. Introduction Patients are at the center of the health care process. Physicians use their knowledge, skills, and defined processes to provide or coordinate health care for patients. It is the extent to which this relationship is valued, developed, nurtured, and maintained that determines the success of the patient-physician relationship. This important position at the center of the health care process ...

h4. Introduction According to a report in the New York Times (June 6th two years of war have resulted in the deaths of more than 1.7 million people in the eastern Congo. The report, based on a study released by the International Rescue Committee in New York, indicates that about four times as many people have died in the area since ...

h4. What is glucose? Glucose, commonly called blood sugar, is the body's main energy source. Your body breaks down the food you eat and converts it to glucose. Your cells take glucose from your blood and use it to make energy. h4. What is hyperglycemia? Hyperglycemia occurs when you have a higher than usual level of glucose in your blood. This ...

About the treatment: What is external beam radiation therapy? * It is a common cancer treatment that uses high doses of radiation to destroy cancer cells and shrink tumors. * A large machine aims radiation at the cancer. The machine moves around you without touching you. * It doesn't hurt. * It doesn't make you radioactive. * It can't be seen, ...

We all hope a stay in the hospital is uneventful and goes smoothly. However, things don't always work that way. Trips to the emergency room, overnight stays and stints in long-term healthcare facilities are stressful for patients and their families. Who can you turn to when you have a problem in a hospital? A patient advocate is often the answer. While ...

Dystonia is a neurological disorder characterized by over-activity of a specific group of muscles and/or muscle. It is the over-activity of these specific muscles that causes involuntary movements and tremors, sustained muscle contractions, and abnormal postures. How is Dystonia Misdiagnosed? Dystonia is misdiagnosed 90% of the time by clinicians. The involuntary movements and spasms caused by dystonia sometimes are attributed to ...

h4. Premalignant Lesions Many malignant lesions have their predecessors. The status of any lesion, whether benign or malignant, can only be confirmed by histologic examination. The American Cancer Society guidelines suggest that lesions which have an unknown source and that fail to heal within two weeks undergo biopsy. Unfortunately, patients may dismiss lesions which are asymptomatic as harmless. Yet squamous cell ...

h4. Introduction With peritoneal dialysis (PD), you have some choices in treating advanced and permanent kidney failure. Since the 1980s, when PD first became a practical and widespread treatment for kidney failure, much has been learned about how to make PD more effective and minimize side effects. Since you don’t have to schedule dialysis sessions at a center, PD gives you ...

Stem cells differ from other kinds of cells in the body. All stem cells - regardless of their source - have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types. h4. What do you think about the use of embryonic stem cells to treat ...