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Preschool wheezing is a clinical condition that describes wheezing preschool children that do not fulfill the criteria of "asthma" fully as asthma would require a person to demonstrate a history of at least three episodes of exacerbations (worsening of symptoms) or chronic cough or wheeze for the past six months. [2]
The child may also experience apnea, or brief pauses in breathing, but this can occur due to many conditions that are not just bronchiolitis. After the acute illness, it is common for the airways to remain sensitive for several weeks, leading to recurrent cough and wheeze.
The wheezing is most often when breathing out. [109] While these are the primary symptoms of asthma, [110] some people present primarily with coughing, and in severe cases, air motion may be significantly impaired such that no wheezing is heard. [108] In children, chest pain is often present. [111]
In children, the most common triggers are viral illnesses such as those that cause the common cold. [22] Exercise or intense use of respiratory system—the effects of which differ somewhat from those of the other triggers, since they are brief. They are thought to be primarily in response to the exposure of the airway epithelium to cold, dry air.
The disease is characterized by inflammation of the airways and patients will commonly present with coughing, shortness of breath and wheezing. Asthma in children is typically triggered by environmental antigens, allergies, viral respiratory infections, fumes, obesity, and emotional factors including stress. [10] [11]
It causes difficulty in breathing which ranges from mild to severe. Bronchospasms occur in asthma, chronic bronchitis and anaphylaxis. Bronchospasms are a possible side effect of some drugs: pilocarpine, beta blockers (used to treat hypertension), a paradoxical result of using LABA drugs (to treat COPD), and other drugs.
A PCP will ask questions in regards to symptoms and breathing; they will also ask if fatigue or wheezing has been experienced when breathing in or out; and also test using a peak expiratory flow and an oxygen saturation. Status asthmaticus can be misdiagnosed when wheezing occurs from an acute cause other than asthma. Some of these alternative ...
Asthma and viral bronchiolitis can also be nearly identical to each other when presented in very young children, since they both consist of wheezing, coughing, and nasal congestion. In addition, typical tests used to accurately diagnose children with asthma, such as the bronchial challenge test , are not considered to be accurate for children ...