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An Arthus reaction is a hypersensitivity reaction involving the in situ formation of antigen/antibody complexes after the intradermal injection of an antigen.
On intradermal injection of histamine the following three reaction occurs 1. Red spot formation - due to intense capillary dilation 2. Wheal formation -due to exudation of fluid from capillaries and vanules 3. Flare formation - due to arteriolar dilation mediated by axon reflex
The needle length for intradermal injections is 3/8" to 3/4" for baby or an adult. Intradermal injections are placed in back of upper arm, upper chest and upper back.
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How is FRC measured by helium dilution, in specific detail.
The maximum volume for intradermal injection is 0.1 ml and the maximum volume for subcutaneous injection is 2ml.
Subcutaneous injection can be given below the skin.. Intradermal injection can be given in-between the skin and base of the hair
It means to inject intradermal
It means to inject intradermal
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An intradermal injection is made into the middle layers of the skin.
An intradermal injection is made into the middle layers of the skin.
A bleb appears at the injection site
subcutaneous intravenous intramuscular
You will see bump of the fluid you administered, which is called a wheal.
If you develop a a red bumpy wheal that passes out the baseline circle you made after intradermal injection within 30 minutes then you are positive for an allergy.
An intradermal injection of 10mg/ml triamcinolone acetonide seem to have good results for many patients. Typical resolution within 4 weeks of injection.