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Bronchoconstriction is the constriction of the airways in the lungs due to the tightening of surrounding smooth muscle, with consequent coughing, wheezing, and shortness of breath. Bronchoconstriction is due to an activation of the parasympathetic nervous system. Postganglionic parasympathetic fibers will release acetylcholine next to the Reissessen muscle, a smooth muscle layer surrounding the bronchi. These smooth muscle cells have M3 type muscarinic receptors on their membrane. The activation of these receptors by ACH will activate an intracellular Gq protein, that in turn will activate the PLC pathway, that will end in an increase of intracellular calcium concentrations and therefore contraction of the smooth muscle cell. The muscle contraction will cause the diameter of the bronchus to decrease, therefore increasing its resistance. Air flow in air passages can get restricted due to 3 factors: - a spasmodic state of the smooth muscles in bronchi and bronchioles - an inflammation of the airways - excessive production of mucus due to an allergic reaction or irritation caused by mechanical friction of air (due to shear stress), overcooling or drying of airways. Bronchoconstriction is common in people with respiratory problems, such as asthma, COPD, and cystic fibrosis. The condition has a number of causes, the most common being emphysema as well as asthma. Exercise and allergies can bring on the symptoms in an otherwise asymptomatic individual.
Bronchodilation is the process by which the bronchi (tubes in the lungs made of connective tissue and muscle) are dilated, or opened. There are circumstances and conditions that cause the bronchi of the lungs to become narrow, or constrict, making it difficult to breathe. There are endogenous (inside the body) and exogenous (originating outside the body) factors that can affect bronchodilation
Read more: Causes of Bronchodilation | eHow.com http://www.ehow.com/about_5408399_causes-bronchodilation.html#ixzz2AYC5gDw4
Epinephrine 1:1,000
Class: Sympathomimetic.
Actions: Bronchodilation.
Indications: Bronchial asthma, exacerbation of COPD, allergic reactions.
Contraindications: Patients with underlying cardiovascular disease, hypertension, pregnancy, patients with tachyarrhythmias.
Precautions: Should be protected from light. Blood pressure, pulse, and EKG must be constantly monitored.
Side Effects: Palpitations and tachycardia, anxiousness, headache, tremor.
Dosage: 0.3-0.5 mg.
Routes: Subcutaneous (IV and ET for pediatric cardiac arrest).
Pediatric Dosage: 0.01 mg/kg up to 0.3 mg.
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Is bronchospasm curable?
Bronchospasm is not necessarily curable, but it can be managed and treated effectively with medications such as bronchodilators and corticosteroids. Lifestyle changes, such as avoiding triggers like smoke or allergens, can also help reduce the frequency and severity of bronchospasm episodes. It is important for individuals with bronchospasm to work closely with their healthcare provider to develop a treatment plan that works best for them.
What are common causes of contact dermatitis?
Common causes of contact dermatitis include exposure to irritants such as soaps, detergents, or chemicals, as well as allergens like latex, certain plants (e.g. poison ivy), metals (e.g. nickel), or cosmetics. Repeated exposure can lead to skin inflammation and irritation.
What are some common causes of pinched nerves?
Common causes of pinched nerves include repetitive motion, poor posture, obesity, injury, arthritis, and herniated discs. This compression can result in pain, numbness, tingling, or weakness in the affected area. Seeking medical evaluation and treatment is important to prevent further complications.
What is the most common female cause of infertility?
The most common female cause of infertility is ovulatory disorders, such as polycystic ovary syndrome (PCOS). This condition can disrupt the regular release of eggs from the ovaries, leading to difficulty in conceiving. Other common causes of female infertility include blocked fallopian tubes, endometriosis, and age-related decline in egg quality.
What is the bronchial spasm resulting in decreased air movement and air trapped in alveoli?
This condition is known as bronchospasm, which is characterized by the constriction of the muscles surrounding the airways in the lungs. This can lead to difficulty breathing, decreased airflow, and air getting trapped in the alveoli, causing symptoms such as wheezing and shortness of breath. Bronchospasm can be triggered by various factors like asthma, allergies, or respiratory infections.
What is paradoxical bronchospasm?
i have the paradoxical bronchospasm
Is bronchospasm curable?
Bronchospasm is not necessarily curable, but it can be managed and treated effectively with medications such as bronchodilators and corticosteroids. Lifestyle changes, such as avoiding triggers like smoke or allergens, can also help reduce the frequency and severity of bronchospasm episodes. It is important for individuals with bronchospasm to work closely with their healthcare provider to develop a treatment plan that works best for them.
What is the ICD-9-CM code for acute tracheobronchitis with bronchospasm?
The ICD-9-CM code for acute tracheobronchitis with bronchospasm is 519.11. Acute tracheobronchitis is another name for bronchitis, and bronchospasm is the closing off of the bronchial tubes.
What does Simbacort do?
Controls bronchospasm in people with asthma and COPD
What is the medical term meaning respiratory condition with bronchospasm and inflammation?
Asthma
What is the medical term meaning Breathing distress caused by narrowing of the airways?
Bronchospasm
Why is bronchospasm contraindicated for suctioning?
Bronchospasm is contraindicated because the suction tubing when it comes into contact with the airway walls can cause further contraction of the airways and reduce the patients ability to breath more that the effect the mucus that the suctioning is trying to clear.
What is a bronchospasm?
a spasm of the bronchials...the "medical" definition-a sudden constriction of the muscles in the walls of the bronchioles. It is caused by the release (degranulation) of substances from mast cells or basophils under the influence of anaphylatoxins. It causes difficulty in breathing which can be very mild to severe.
Why atropine is given in bronchial asthma?
atropine is use to combat bronchospasm. most commonly as the ipratropium bromide. bronchospasm is one means by which asthma occurs. btw atropine is used mostly in emergency medecine. atrovent is used more for maintenance therapy
What are the common causes or respiratory ailment?
common causes is cold, lung cancer, etc
What is allergic reaction resulting in severe bronchospasm drop in blood dyspnea would be called?
Asthma
What are the causes of a prolonged expiration phase?
Causes of a prolonged expiration phase can include airway obstruction, such as in conditions like asthma, chronic obstructive pulmonary disease (COPD), or bronchiolitis. Other potential causes may include bronchospasm, mucus accumulation in the airways, or lung diseases like interstitial lung disease. It is important to consult a healthcare provider for proper evaluation and management.
