Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Rhino and enterovirus common cold
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Rhino and enterovirus common cold
Nasal congestion is a common reason to visit a clinic in the whole world. It is also another term for nasal blockage, runny nose or commonly called stuffy nose. It is a kind of disorder of upper respiratory tract which involved body sensory organ - nose. Nasal congestion can be defined as the blockage of nasal passages frequently due to membranes lining the nose becoming swollen from inflamed blood vessels. Nasal congestion can attack anybody from infants to elderly throughout the year, highest in the fall and the spring. The common causes of nasal congestion are virus attack, allergic and common cold which nasal cavity is filled with mucus. Human rhinovirus was detected in 181 of 434 patients (41.7%) and was the only pathogen detected in 107 patients (59.1%). In order to ease the situation, phenylephrine acts as a nasal decongestant constrict the blood vessels thus decrease the secretion of mucus.
Allergy is one of the most common cause of nasal congestion. According to data, the percentage of allergic rhinitis is rising in worldwide, happens in 10% to 30% of adults and up to 45% of children. When allergens such as pollens or dust enter the nasal cavity, humans’ immune system detects them as a pathology from external environment. Histamine is quickly produced to defence against the pathology. Histamine irritates the mucous membrane in nasal cavity to secrete mucous fluid, causes the nose cavity filled with a remarkable amount of mucous fluid. When the mucous fluid increase to a certain amount, the air passageway is blocked indirectly. For short, allergy is a popular cause for nasal congestion especially in big cities with serious air pollution.
On the other hand, virus attacks the upper respiratory tract can cause common cold. Rhinovirus is a non-enveloped 30nm RNA-virus with over serotypes that belongs to the Picornaviridae family. Rhinovirus are mainly transmitted through direct or indirect with secretions and invade by binding to the receptor on the nasal epithelium. When rhinoviruses attack the nasal passage, they induce vasodilation, increase blood flow and increase vascular permeability resulted the physical size of nasal passage reduce. To protect the lower respiratory tract from attacked by virus, the body detect the rhinovirus as pathogen and inflammation occur. Mucous membrane in the nose primarily secrete a significant number of mucus which irritated by immune system. Shortly, nasal congestion caused by common cold is temporary, can be treated well once the virus are flushed out of the nasal cavity which cause the irritation.
Most of the time, it is from smoking. The tissue in the lungs will become inflame and produce mucous because of exposure to these chemicals. Theophylline and ß2 agonist will act to relax and dilate the airways and allow more oxygen to enter. They will also decrease the lungs sensitivity so that they do not react so much to inhaled chemicals.
DeeAnn Reeder White Nose Syndrome Press Release. YouTube. YouTube, 28 Oct 2011. Web. The Web.
Croup: Croup is another common airway inflammation caused by virus that can affect the trachea, larynx and possibility the bronchi (Murray, Sidani, & Zoorob, 2011) thus causing infection in the upper respiratory tract. Murray et al. describes it as the most common illness in children under the age of 6 to 36 months and cause for cough mostly when a child cries; acute stridor and hoarseness in febrile children (Murray et al., 2011). It can be a life-threatening situation in the life of the young infant and the family. Croup symptoms exhibit as hoarseness, barking cough, inspiratory stridor, and respiratory distress. I chose this diagnosis as my first preference because when I read the mother’s subjective report it matches that of croup symptoms: a barking cough, no fever, severe at night and when the baby cries, fatigue due to excessiveness of the tears, pain due to inflames and swollen of the airway. Murray et al., led us to understand that the etiologies of this viral causing agent can be traced to the parainfluenza viruses, type 1. (2011). This virus is commonly spread through contact or droplet secretion.
Today I will be explaining the importance and details of tracheobronchitis also referred to as bronchitis. Tracheobronchitis as the name gives off is an inflammation of the trachea and bronchitis. The trachea and bronchi’s main role is to extend air into the lungs, so that they are able to reach the alveoli which are responsible for gas exchange in the lungs. Tracheobronchitis is often times not contagious depending upon the cause of inflammation, inflammation can result from an allergic reaction, bacterial infection or virus. Some important clinical manifestations that you may see include wheezing which are a result of inflamed airways,fever, dry or phlegm cough, night sweats, headache and sore throat. Tracheobronchitis does not always have to be severe it can also be acute and last only a few weeks.
which make up the sweat glands in the skin and the mucus also lines the passageway inside the lungs,
Asthma is a condition of the bronchial tubes characterized by episodes of constriction and increased mucous production. A person with asthma has bronchial tubes that are super sensitive to various stimuli, or triggers, that can produce asthma symptom.In other words, asthmatics have special sensitivity that causes their lung tissue to react far more than is should to various stimulating factors or triggers. For this reason, people with asthma are said to have "twitchy airways."Some symptoms that people with asthma commonly experience are chest tightenings, difficulty inhaling and exhaling, wheezing, production of large amounts of mucous in their windpipes and coughing.Coughing can be frequent or intermittent, and can be loose-reflecting extra mucous secretion in the airways or dry and deep-reflecting tight bronchospasms. Not all these symptoms occur in every case of asthma.Sometimes people may have coughing without and symptoms for months or even years before it's realized that they are asthmatic. Interestingly enough, asthma symptoms are most severe at night, while we're lying down our airways narrow as a result of gravity changes. Also our lungs do not clear secretions as well at night, which leads to mucous retention, and that can increase the obstruction to air flow.
The nose is divided into the right and left cavities and is lined with tiny hairs and mucous membrane, which secretes a sticky fluid, called mucus, which helps prevent dust and bacteria from entering the lungs. The nose moistens, warms and filters the air and is an organ, which senses smell. The naso-pharynx is the upper part of the nasal cavity behind the nose, and is lined with mucous membrane. The naso-pharynx continues to filter, warm and moisten the incoming air.
Medical officials agree that one of the characteristic features of the influenza is its air-borne infectivity. "One case to-day may mean a hundred to-morrow and thousands within a week," according to the chief medical officer of the Local Government Board. To protect oneself against the infectious illness that can spread without direct contact with the sick, it is recommended that people situate themselves in well-ventilated rooms. However, once you have contracted the disease, you are to quarantine yourself in an isolated home.5 Other symptoms of influenza include extreme exhaustion, aching limbs, headaches and sometimes, inflammation of nasal mucous membranes.6 The most common preventatives and curatives sold at the chemist's are quinine, cinnamon, and eucalyptus, with quinine being a favorite prescription by doctors.7 However, other medicines are also used against the influenza epidemic. The author of "Influenza: Its Cause and Treatment" is noted for stating that Formamint Tablets are the best source of infection prevention.
Asthma is a disorder of the respiratory system in which the passages that enable air to pass into and out of the lungs periodically narrow, causing coughing, wheezing, and shortness of breath. This narrowing is typically temporary and reversible, but in severe attacks, asthma may result in death. Asthma most commonly refers to bronchial asthma, an inflammation of the airways, but the term is also used to refer to cardiac asthma, which develops when fluid builds up in the lungs as a complication of heart failure. This article focuses on bronchial asthma.
Most of you may not think of asthma as a killer disease, yet more that 5,000 Americans die of asthma each year. According to the Mayo Clinic web page, asthma also accounts for more that 400,000 hospital discharges annually. As the number of people with asthma increases, the more likely you are to come in contact with a person who has the disease. As far as I can remember, I have had asthma my whole life. My mother and one of my sisters also have asthma, so I have a first hand experience with it. This morning, I will discuss some interesting facts about asthma, I will specifically focus on what it is, warning signs, symptoms, causes, and the treatments that are used.
Person, A. & Mintz, M., (2006), Anatomy and Physiology of the Respiratory Tract, Disorders of the Respiratory Tract, pp. 11-17, New Jersey: Human Press Inc.
Chronic bronchitis is a disorder that causes inflammation to the airway, mainly the bronchial tubules. It produces a chronic cough that lasts three consecutive months for more than two successive years (Vijayan,2013). Chronic Bronchitis is a member of the COPD family and is prominently seen in cigarette smokers. Other factors such as air pollutants, Asbestos, and working in coal mines contributes to inflammation. Once the irritant comes in contact with the mucosa of the bronchi it alters the composition causing hyperplasia of the glands and producing excessive sputum (Viayan,2013). Goblet cells also enlarge to contribute to the excessive secretion of sputum. This effects the cilia that carry out the mechanism of trapping foreign bodies to allow it to be expelled in the sputum, which are now damaged by the irritant making it impossible for the person to clear their airway. Since the mechanism of airway clearance is ineffective, the secretion builds up a thickened wall of the bronchioles causing constriction and increasing the work of breathing. The excessive build up of mucous could set up pneumonia. The alveoli are also damaged enabling the macrophages to eliminate bacteria putting the patient at risk for acquiring an infection.
The inside of the nose is layered with a sticky, moist substance called mucus. Mucus works with nose hairs to collect dust and germs to protect the lungs. When the nose captures an irritant, that it has to dispose of right away, it forcefully exhales at up to 100mph. This is called a sneeze. Farther back into the nose are even smaller hairs called cilia that you can only see with a microscope. They remove mucus from the sinuses and the back of the nose.
There are 5 main pathways of environmental transmission of pathogens. Those are air-borne, food-borne, water-borne, vector-borne and blood-borne. Air-borne transmission refers to any disease that is caused by a pathogen and transmitted through the air. These pathogens can be spread by coughing, sneezing, stirring dust, liquid spraying, or generally any activity that generate aerosol particles or droplets. These pathogens can include viruses, bacteria, or fungi. Some common examples of pathogens that are spread via air-borne transmission are rhinovirus, hantavirus, adenovirus, and influenza, among many others (cdc.gov).
Patients who usually have allergies suffer from many symptoms due to the allergic reaction(s). Normally, your immune system protects you against invading agents such as bacteria and viruses. Otherwise harmless allergens (allergy-producing substances) cause your body to react as if they were dangerous invaders. In effect, your immune system is responding to a false alarm.