Avoid OTC allergy medications that contain pseudoephedrine or phenylephrine. - is the most important information which should be provided by the nurse to the client about using over-the-counter (otc) medications for allergies.
OTC allergy medications may include ephedrine, phenylephrine, or pseudoephedrine, which can cause adrenergic side effects, such as increased intraocular pressure. Therefore, patients with glaucoma should avoid using these over-the-counter medications.
Allergies, also known as allergic diseases, are a group of diseases caused by hypersensitivity of the immune system to normally harmless substances in the environment.
These diseases include food allergies, atopic dermatitis, allergic asthma and anaphylaxis.
Symptoms may include red eyes, itchy rash, sneezing, coughing, runny nose, shortness of breath, or swelling.
Food intolerance and food poisoning are different and seperate conditions.
Common allergens are pollen and certain foods. Metals and other substances can also cause such problems. Food, insect bites, and drugs are common causes of severe reactions.
Their development is because of both genetic and environmental factors. The underlying mechanism involves immunoglobulin E (IgE) antibodies, part of the body's immune system, that bind to allergens, bind to receptors on mast cells and basophils, and bind to histamine and other causes the release of inflammatory chemicals.
Diagnosis of a patient is usually based on patient history. In some cases, further skin and blood tests may help. However, a positive test result does not necessarily mean that you have a serious allergy to that substance.
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