What is an Ultrasound?
An ultrasound or USG is a common diagnostic modality used in all specialities of medicine. It uses high frequency waves to create a two dimensional image of body tissues and organs. Although USG is widely used in medicine, in maternal medicine it plays a very important role. Almost all women are subjected to at least one USG scan during their pregnancy.
How is it done?
During pregnancy, two approaches are used. In early pregnancy, up to 12 weeks of gestation, the uterus is still inside the pelvis. Hence it is best images by using the trans-vaginal USG. For this exam, the patient is asked to disrobe from waist downwards and a surgical gown is usually offered. Thereafter, a trans-vaginal probe is inserted into the vagina and the ultrasound scan is done. The probe is quite small and does not cause any discomfort to the patient. It takes about 20 minutes to do this procedure and the lady can go home immediately.
After 12 weeks of pregnancy, the uterus becomes an abdominal organ hence abdominal USG is performed. In this procedure, the abdomen is exposed and a small quantity of gel
For some years now we’ve been hearing about the importance of drinking water, and multiple companies offering all kinds of “healthier” water have sprung up everywhere you turn: distilled water, filtered water, alkaline water, mineral water, spring water, and so on. Yet amazingly, even with all the hype about drinking plenty of water every day, many, many people are dehydrated. And even if you drink plenty of water daily, you may be confused as to what types of water are truly good for you and what isn’t.
It seems we have the continuing growth in epidemic proportion of chronic dehydration, yet most people have no idea they are dehydrated and are not aware of the symptoms that indicate dehydration. So let’s examine some of the factors concerning water and dehydration.
The first sign that you are dehydrated is dark colored urine, besides the mere fact of thirst. But here are some often overlooked or unknown symptoms of dehydration, and why it is important to know:
• Fatigue, even chronic fatigue
• Digestive issues
• Premature aging – dry skin & hair
• Excessive hunger
• Difficulty in concentrating
• Weight gain
Technology is being used in the field of medical sciences to diagnose almost any given problem. It can be a small injury or a deadly decease, a detailed diagnosis is required to cure from the roots. One among such technologies is the use of X-ray in the treatments.
X-ray technology uses radiography to capture the images of your body parts for the diagnostic purposes. For example, if you have a hairline crack on your bone, your doctor will be able to give you a solution easily by studying the X-ray images. The process of developing X-ray images is a highly skilled operation. In order to perform such training one has to be trained and license. There are many X-ray training educational institutions most of them trade schools, which provide you with the instruction and experience. After the successful completion of the course you will be awarded with a certification or diploma.
Most people at minimum know the basics of how to work with fixed and portable x-ray equipment, how to develop pictures, and how to position people so the best pictures can be taken. Others learn deeper aspects of the radiology profession and may be able
What is ionizing radiation?
A form of radiation dubbed ‘high energy’ is ionizing radiation, which is of varied types such as x-rays and gamma rays. Some forms of ionizing radiation which come out on the use of an x-ray machine may be cancerous.
Though, we as human beings get exposed to different kinds of radiations from natural sources in our daily life, these are not hazardous to health. Everything ranging from the water you drink to the food you consume exposes you to some kind of radiation.
Nevertheless, the health issues that may be caused by ionizing radiation can be averted only with the regulation of man-made exposures.
Types of Radiation
A number of medical imaging tests today use x-rays; these may comprise:
- Radiography – This form of medical imaging test involves x-ray images of broken bones or chest or teeth.
- Mammography – Mammography involves screening of breast cancer with the help of breast x-ray.
- Computed Tomography – Computed Tomography or CT helps in diagnosis of varied illnesses such as certain cancers.
- Fluoroscopy – Fluoroscopy may include barium x-rays which help detect any problem in the digestive system of the patient.
An x-ray is a form of ionizing radiation that holds the potential to pass through the soft tissues and organs. However, they may not penetrate dense parts like bones. An x-ray examination is conducted using an x-ray machine which helps produce images of internal body parts like teeth or bone. Soft tissues let the radiation pass through them, but bones absorb them.
The patient is asked to lie on a stand so that their body part to be tested could be placed between the machine being used and the photographic plate.
A radiographer or expert carries out the procedure after getting familiar with the usage of imaging technology, which may include computed tomography or CT scans, or ultrasound.
The X-ray machine
The x-ray machine comprises varied parts such as a photographic plate, x-ray tube and lead shielding. High-voltage electricity is used by the x-ray tube which helps generate x-rays. The x-ray is directed by lead shielding to the body part being tested. This prevents the rays from scattering in different ways. The image thus produced is captured by the photographic plate when the rays penetrate the body of the patient.
With so much conflicting evidence out there regarding radiation and its impact on our health, what should or shouldn’t we be concerned about? This topic has received an increasing amount of attention recently from scientists, politicians, and the media. However, today, all we can say with certainty is that we are not certain what the health risks are, leaving many expecting parents confused.
New legislation has been sprouting up around the country to require labeling on cell phones about their radiation levels and potential health risks. Globally, countries such as Australia, Finland, Israel, France, and others have taken steps to ban or reduce usage by young children.
Much of this is in response to new studies and assessments of long-term cell phone use by the World Health Organization and European Commission. The concern stems from how rapidly we have moved towards wireless technology. Ten years ago cell phones, laptops and wireless networks were not commonplace. Today they are everywhere.
Potential Health Risks
The body of evidence about health risks is very mixed. Some studies have shown no biological effect from low-level radiation, but many studies have warned of risks. Pregnancy-related studies that cited risks
What is X-ray?
X-ray is a procedure of producing images of internal body parts in a painless and secure manner. The procedure of x-ray examination is simple, but completely effective. It helps examine different body parts like fractured bones, be it in your arm or leg.
Other organs of the body can also be easily examined using an x-ray, which helps identify other issues with the body such as a diseases or infection in any body part.
Additionally, x-rays prove helpful when it comes to conducting a therapeutic procedure like coronary angioplasty. This aids in deciding the equipment to use to treat a particular area.
Working of X-Rays
X-rays are nothing, but one of the various forms of radiation, which is very much similar to the light energy. Nevertheless, as compared to x-ray, light energy has lower frequency and your skin tends to easily absorb the same.
Experts say that x-rays contain higher frequency, which is why they hold the potential to penetrate the human body. When this penetration happens, the energy particles dubbed photons get absorbed at varied levels. The x-ray images that come out display the pattern thus formed.
Electromagnetic radiation is a form of energy that charged particles emit when they are on the move. This energy is in the form of waves that travel at the speed of light in vacuum. It consists of waves that have different frequencies and these waves are classified accordingly. One portion of the spectrum is responsible for producing luminance and the other portions have their applications as well.
The classification of the spectrum in increasing order of frequencies is gamma radiation, X-rays, ultraviolet radiation, visible light region, infrared radiation, microwaves, and radio waves. We humans have learned to harness each of these for our benefits. Like the ultra violet rays in the manufacturing industry, X-rays for medical and industrial detection of fractures and fissure. Radio waves have been utilized in satellite communication and microwaves for microwave ovens, etc.
Further Electromagnetic radiation can be divided into two categories, ionizing and non-ionizing radiations. Out of these two, ionizing radiation is hazardous to human health. Ionizing radiation hampers the bioelectrical signals in the body that are sent out by the nervous system in order to control various functions.
Recent studies have shown that many devices, especially cell phones, emit
Cellphone usage worldwide numbers in the billions. If there is a possibility of injury from these devices, then a lot of people will be affected.
A cellphone is actually a radio transmitter and receiver. It sends and receives radio frequency electromagnetic waves. The received signals are fairly low level, so I will concentrate on the signal transmitted from the cellphone.
Cellphones transmit mainly at frequencies of 900, 1800 and 1900 Megahertz (MHz). A microwave oven cooks food using a frequency of 915 MHz or 2450 MHz. In other words, the food is not fussy about what frequency you use, as long as it’s in that range, say 900 to 2500 MHz. Which means, cellphones use Microwave Oven frequencies.
A microwave oven puts out a power of about 1000 watts, on average. If you put your head in a microwave oven, it will take about an hour to cook to a nice sizzling crisp.
A cellphone transmits at a power of about 3 watts, and it self adjusts it’s power continually to compensate for poor signal paths, up to a maximum of 5 to 7 watts. Not much, but there’s a twist…
One of the most common, yet least understood procedures regularly practiced by dentists is the use of Dental X-rays. But what exactly are X-rays, and more importantly, do they present a health risk?
Developed late in the 19th Century by German physicist Wilhelm Röntgen, an X-ray is a type of electromagnetic radiation (visible light) but with the unique ability to penetrate or pass through the human body to produce shadow-like images either on traditional film, or more likely today, in a digital format. An invaluable medical / dental tool, by generating an image of the interior structure of bones and organs an X-ray is a proven diagnostic method for determining the condition of a patient in a non-intrusive way.
When you go to a dentist for the first time it is not uncommon for a set of X-rays to be taken to allow your dentist to detect any signs of damage or oral disease not visible during a regular dental exam. This procedure will allow your dental professional to create a baseline understanding of your personal oral health condition, which in turn allows them to map out a more accurate plan to deal with any ongoing
We are adapted to survive mild exposures to radiation. After all, the sun is a kind of controlled nuclear bomb and it releases a lot of radiation. Of course, this radiation, and man-made radiation, can also cause cancer and a host of short- and long-term health problems.
Whether you are worried about the radiation from dental x-rays, a mammogram, or fallout, here are some Wise Woman Ways to help you stay healthy. (If you are using radioactive therapies in your cancer treatment, there is a chapter full of information specifically for you in Breast Cancer? Breast Health! The Wise Woman Way.)
- Japanese researchers found that diets high in carotenes significantly reduced DNA damage in humans exposed to radiation. Supplements of beta-carotene (or of vitamins C or E) did not show this effect. Eating lots of orange and dark green foods (sweet potatoes, winter squash, beets, carrots, kale, collards, chard, and spinach, for example) can protect you from radiation-induced cancers.
- Envision yourself and all your cells protected from damage. (One woman wrapped herself in psychic lead.)
- Guinea pigs bombarded with radiation lived a lot longer if they ate broccoli or cabbage. All cabbage family plants – including arugula, turnips,
One of the most important tools family dentists use is the dental x-ray. X-rays allow dentists to determine conditions that may not be evident during visual examination. Hidden conditions, such as root disease, impacted teeth and problems of the jaw can be found. Problems that may affect successful rejuvenation of teeth can be detected by cosmetic dentists. Today, both x-ray equipment and techniques have been refined to a high level of precision that makes them safer than ever.
History of X-Rays in Dentistry
The history of dental x-rays begins with the discovery of radium by Wilhelm Conrad Roentgen in 1895. The ability to see the boney structures inside the body opened up new opportunities to understand and treat numerous diseases and injuries. Very soon after this discovery, Dr. Otto Walkhoff in Braunschweig, Germany, took the first x-ray of the oral cavity. These early x-rays took significantly more time to produce an image, often as long as 25 minutes. The new technology quickly spread throughout Europe and to the United States, where it was used to help patients with hidden dental conditions.
Recommendations on Dental X-rays
Because of the dangers of excessive amounts of radiation
We all love our gadgets but do our gadgets love us? The news is full of reports about the links between health and gadgets. Parents are equipping their children with cell phones at younger ages, and new laws are in place to make driving with cell phones safer. We thought we’d take a look at the current state of health and gadgets and came up with this assessment.
Microwave radiation, thermal radiation, electro-magnetic fields, repetitive stress, and even psychological harm; the list of potential threats goes on and on. There is a lot of science being applied to studying the effects of gadgets on our health. At the same time there are also a lot of myths in circulation.
History is full of examples where health hazards like asbestos, cigarettes, and lead in paint went unrecognized or even intentionally suppressed. Many recent studies show no harmful effects from cell phone use however, some long terms studies have turned up disconcerting findings. And there are always that group of neurosurgeons who won’t hold their phones next to their ears.
In either case there is enough doubt to warrant some caution. According to one
More than four hundred people all across the United States have been injured because of radiation overdoses from CT scans (also known as brain perfusion scans or CAT scans). If you or someone you know has suffered complications following a CT scan, such as headaches, confusion, hair loss, memory loss, or skin reddening, you may have received an overdose of radiation. Overdoses of radiation can increase your risk of developing brain damage, cancer, and cataracts for the rest of your life.
Currently this issue is being investigated by researchers, who expect there are actually many more victims and negligent hospitals out there. The manufacturers of CT scan machines, along with the medical facilities where the scans are conducted must be held responsible for their actions and pay for the pain and suffering they have inflicted on innocent patients.
If you or someone you know was harmed because of an overdose of radiation from a CT scan, you may be able to seek compensation for your medical expenses, pain and suffering, along with long term care and monitoring for subsequent health problems that could result from being exposed to elevated radiation. The best way to go about
It may be said that the root essence of the scientific world lies nsomewhere in the realm of ‘radiations’ – cosmic, solar, terrestrial, human, vegetative, thought – et al…
The human body – being a composite of radiations – chemical, physical and electrical – needs to appropriate a specific type (quantity and quality) of radiations from all sources possible.
Some forms of radiations can be taken into the body directly, ie – solar radiations (light) acting on the receptors in the skin – kind of like photosynthesis in plants – except that whereas with plant synthesis the end product is chlorophyll – the end product of light upon the skin can be measured in the blood count – sunlight makes healthy blood.
Other radiations are taken into the body through the foods we eat.
Some foods contain a predominance of one type of radiation over another – that is why we must eat a balance of all types of foods from the vegetable kingdom.
Fruits contain the highest form of radiations in the food chain and remain on the trees for many months – soaking up the radiations that will sustain human life