This section deals with the clinical condition rhinitis, listing
the relevant immunological tests, together with a short explanation
of their use.
Relevant immunological tests: IgE and Allergen Specific
Allergy tests may help distinguish allergic from vasomotor or
other causes of rhinitis. Total IgE is often in the normal range or
slightly elevated. Specific IgE may be sought to inhalant
While the range of allergens tested should be sensibly guided by
a careful history this should generally include allergens to which
most people are exposed, such as cat and house dust mite (HDM).
Investigation of seasonal rhinitis is only indicated if there is
some doubt about the diagnosis or if desensitisation is being
The pollens involved in seasonal rhinitis or asthma are as
follows: grasses (May-September), trees (March-May) and weeds
(July-September). There is little point in finding the exact pollen
allergen unless it is intended to give the patient immunotherapy -
when skin testing is mandatory.
(Last updated October 8th