Swabbing machines are equipped with a winch with cable, a foldable mast with a sheave or pulley on top, and a driving system. To transport the equipment from well to well, it is frequently placed on a truck. The operator controls the speed at which the machine spins by pulling on a control cord attached to the side of the truck. When the machine reaches the end of its range, more cable is pulled out until the machine can be moved again.
These trucks are usually about 20 feet long and have two large wheels at the front and four smaller wheels at the back. There is also a platform between the two sets of wheels where the spinner can stand. This makes it easier to get off and on the truck when it is being used underground.
The swabbing machine is most often used in oil fields to clean out wells before they are abandoned. A rig will go into a field, call for pipes to be cleaned out, and then move on to the next one. Sometimes several fields will be visited during a single day's work.
Wells are generally located near surface locations such as roads or property lines so that they can be drilled easily. Once a well has been drilled to depth, it is usually necessary to drive it further into the ground before it can be tied back into the main pipe line. This is called "stabilizing" the well.
A swab test is carried out by inserting an absorbent substance, often a cotton swab, into a person's mouth. Before being withdrawn from the mouth, the swab is allowed to soak up some saliva. This saliva contains bacteria that are important in determining a person's health. The lab will tell you what kind of bacteria have been found using a combination of chemical tests and microscopic analysis.
The process is repeated with as many different types of bacteria as possible, since it is these that may not be present in enough concentration to identify individually.
Some people may object to having their mouth swabbed for medical reasons. If this is the case for you or your child, then another form of testing can be used instead. This is called "culture testing" and involves growing certain bacteria under laboratory conditions before they are identified. Culture tests are usually more accurate than swabbing and do not involve the use of chemicals. They just require a little more time.
Culture tests are useful where there is need to know exactly which antibiotics kill which kinds of bacteria. For example, if you are allergic to penicillin, culture tests would let doctors know this before prescribing you any medication. Such information is helpful to doctors when trying to find alternative treatments that will still rid you of your infections.
The spindle or stick that forms the body of the swab; the absorbent substance coated onto the spindle ends; and the box used to house the swabs are the three basic components involved in swab fabrication. Spindles might be wood, rolled paper, or extruded plastic sticks. The most common type of swab is called a "duster" because it consists of several strands of cotton or other natural or synthetic fibers attached at both ends with adhesive or glue.
Swabs are usually packaged in bundles of 100-200 and contained in a corrugated box. When removed from its packaging, the bundle should be wrapped in tissue paper before being placed in a container such as a carton or bag. Swabs are available in various sizes from small hand swabs to large binoculars that can hold up to six inches of fiber optic cable.
Not only does swabbing help remove soil particles from your carpet, but it also helps prevent future stains by removing moisture and oil from the surface of the carpet. The bristles on the swab act like tiny brushes that sweep away dirt and dust from the fibers of the carpet while absorbing any liquid that is trapped between them. This is why swabbing is considered to be an effective method for cleaning carpets.
Swabs are easy to use and can be found almost anywhere household cleaners are sold.
Swabs are obtained for two reasons: (1) to detect organisms in wounds that are known or suspected to be infectious, and (2) as part of screening programs to identify individuals who may be carrying infections but do not show any signs or symptoms. Organisms are detected using culture techniques; therefore, swabs are critical tools for identifying bacteria that cause disease.
Swabs are also used in some medical procedures to obtain samples of tissue or fluid for testing. For example, doctors often collect urine samples by swabbing the inside of a patient's bladder. The sample is then sent to a laboratory for analysis.
Finally, swabs are used by scientists in research studies to obtain biopsy samples for further study. For example, a doctor might take a small piece of skin from an area on a patient's body where there is no visible injury. This is done to prevent injuring healthy tissue when taking the sample. The sample is then sent to a lab for examination under a microscope.
In conclusion, swabs are used to detect organisms in wounds that are known or suspected to be infectious.
But, regardless of the type of swab used, a sample of saliva in the mouth is obtained. The person doing the test is usually trained to take it from the gum line or beneath the tongue, because that is where drug metabolites are most likely to stay. They don't stay on the inside of the gums very long. But even with these locations, there is no way to tell exactly where within the oral cavity the sample was taken.
Generally, if you ask people about which part of their body is the most private, they will say something like "in my mouth." However, scientists have found that the skin surrounding your mouth is not as private as you think. A laboratory analysis of mouth swabs collected from 100 randomly selected adults living in San Francisco revealed that 58 percent of them contained DNA from another person, mostly a parent or sibling. The researchers also discovered DNA from other relatives in 26 percent of the samples. Even more surprising, 13 percent of the samples had DNA from two different individuals!
The fact that we are all born with all our genetic material intact allows scientists to study our genes and learn much about health and disease. Taking a mouth swab is one way scientists use DNA to do this. Forensic investigators may also use mouth swabs to match DNA markers with unsolved crimes.
People sometimes wonder whether they should avoid eating or drinking when taking a mouth swab. It's fine to eat and drink after you collect your sample, but it isn't necessary.