Somnambulism
Somnambulism or sleepwalking is a sleep disorder that is characterized by performing activities that are usually done in full consciousness. This sleep disorder is part of the parasomnia family. Hereditary factors play a major role in developing somnambulism. Other trigger factors include those that contribute to slow wave sleep such as fever, excessive exhaustion and sleep deprivation. Some persons with mental disorders are known to sleepwalk. Sleepwalkers are known to sit up in bed, clean, cook and sometimes even drive.
Typically sleepwalkers have no memory of these episodes. Although their eyes are open, they are not truly conscious. They are likely to have a dazed and glazed look. Sleepwalkers might talk in sleep too. They might even open their eyes though they are still asleep. A typical sleepwalking episode can last anywhere from a few seconds to a few minutes. Sleepwalking occurs during non-REM sleep. Episodes of sleepwalking usually start when a kid is around 5 - 10 years.
Most sleepwalkers do not require any particular treatment. Short-acting tranquilizers are often used. Sleepwalkers are usually prescribed tricyclic antidepressants, and clonazepam. In some cases, ECG is taken during sleep to rule out seizures. Hazardous items must be kept out of their reach. Most experts advice that it is best to gently nudge and guide a sleepwalker back to sleep. Those who have a tendency to sleepwalk must develop a calm soothing bedtime ritual and ensure that they get sufficient rest. Hypnosis is known to help in some cases.
Fourth Degree Burns
The medical community is still debating about the existence of fourth-degree burns or if it is just sufficient to have a three tired classification system. Fourth-degree is generally used when the injury is due to electrical burns and irreparable. Normally muscle tissue, tendons and bones are damaged permanently in fourth -degree burns. Bone and cartilage damage only are taken into account to define fourth-degree burns by some.
Hospitalization is very important for fourth-degree or transmural burns. Amputations of extremities or surgical interventions may be necessary during hospitalization. Fourth-degree burns may lead to death in some cases and hence the burn victim should be rushed to a medical treatment facility or a burn unit as soon as possible.
Fourth-degree burns are also considered as full thickness burns. Involving destruction of all the epidermal and dermal layers, fourth-degree burns can extend down to the subcutaneous tissue. Since the nerve endings have been destroyed, full thickness burns are not painful. With fourth-degree burns, the bone is burnt. Skin grafting is required in the case of third and fourth-degree burns.
When burns involve tissues like muscles or bones that underlie the skin, they are called fourth-degree burns. In addition to this fourth-degree burns are further classified into three additional degrees. If the skin is iretrievably lost, it is known as fourth-degree burn; when there is irretrievable loss to the muscles, it is called fifth-degree burn; and when the bone is charred, it is categorized as sixth-degree burn.
Ascertain whether the person is breathing or not, while you are waiting for the arrival of paramedics. If the person is not breathing, a gentle attempt of CPR will help. Since the person has lost large amount of water and there may be dehydration, if the person is able to drink and is breathing normally, you can administer little water. It will make them recover their body. It may not be easy for you to keep them comfortable, but if it is possible for you to keep them conscious till the arrival of assistance, their chances of survival will improve.
Monosomy
Monosomy is a rare chromosome anomaly. Human cells normally contain 23 pairs of chromosomes, with a total of 46 chromosomes in each cell. Monosomy refers to the loss of one chromosome in cells. Any such change of chromosomes shall cause problems pertaining to growth, development and function of the body's systems. Monosomy is a genetic defect caused by an incomplete set of chromosomes. The changes in chromosomes occur during the formation of reproductive cells in early fetal development.
Monosomy can be identified during prenatal testing, especially in women who are at high risk. Prenatal testing such as an amniocentesis can reveal monosomy. As the test results could be very complicated, it is important to receive genetic counseling before undertaking this test. While a negative result indicates that no abnormalities were detected, a positive result suggests that a problem may be present. Since false positives and negatives can also happen, follow up additional testing is also recommended.
Aneuploidy is the term used to refer to chromosomal defects, a gain or loss of chromosomes from the normal 46. In monosomy, which is a kind of anueploid, there is the loss of one chromosome in cells. Another common form of aneuploidy is trisomy where people have three copies of a particular chromosome 21 in each cell instead of the two copies. One common example of the condition caused by trisomy is Down Syndrome.
Turner syndrome is a known example of the condition caused by monosomy. In this syndrome, women typically have only one X chromosome instead of the usual two. Significantly, Turner syndrome is the only full monosomy that is found in human beings. In other full monosomy, the individual will not survive development.
Cri du chat syndrome and 1p36 Deletion Syndrome are instances of partial monosomy caused by deletion of the short p arm of chromosome 5 and chromosome 1 respectively.
Chi du chat syndrome is characterized by a number of symptoms and in particular a malformed larynx which causes the voice to sound strangely high pitched. Chromosome 1p36 deletion syndrome is considered one of the commonest chromosome deletion syndromes. It is characterized by features such as developmental delay, feeding difficulties, low muscle tone, distinctive facial features, hearing loss, heart problems, seizures, vision defects and a large fontanelle that is slow to close. The incidence of monosomy 1p36 has been estimated to be 1 in 5000 to 1 in 10000 liveborn children. Interestingly, more females than males have been reported.
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