REAL TIME MISSILE DEFENCE SYSTEM WITH DYNAMIC VISUALIZATION

Abstract

Objectives: To identify the prevalence of common inhalant allergens among patients.Material and Method: This is a cross sectional retrospective observational descriptive study design including 110 patients,who were referred to Asthma and Allergy clinic of children hospital in King Saud Medical City, Riyadh (KSMC) between June2016 and December 2018 with primary diagnosis air way diseases, eczema and food allergy.Data Collection and Analysis: Data was collected through questionnaire, checklist and data Based of skin prick test results.The Skin prick test (SPT) procedure was used for all patients as diagnostic of airway allergy and therapeutic as routine inter-vention tools. The SPT was carried out on the forearm. Any number of allergens can be tested, as few as 3 or 4 or up to about 18
allergens. Clean arm with soap and water or alcohol. The forearm is coded with a skin marker pen corresponding to the num-
ber of allergens being tested. A single drop of each allergen extract was applied, two centimeters apart. A small prick through
the drop is made to the skin using Stallerpoint plastic needles (Stallergenes, France). A wheal reaction after 15 minutes ≥ 3
mm in diameter more than negative control was regarded as a positive sensitization to that allergen. Antihistamines were dis-
continued before the SPT was conducted. Glycerinated solutions of histamine phosphate (10 mg/mL) and saline were used as
positive and negative controls, respectively. There are some cases exclude from study those of unclear diagnosis, non-reactive
skin either used antihistamine or have hyper reactive skin.