A patient is scheduled for RAST which of the precautionary steps is most important for the nurse to follow?
A) Test during a bronchospasm
B) Perform scratch tests after the RAST
C) Perform prick tests after the RAST
D) Emergency equipment should be available
Ans: D
Feedback: When the validity of the skin test is in doubt, a RAST, or provocative challenge test, may be performed. If a skin test is indicated, there is a reasonable suspicion that a specific allergen is producing symptoms in an allergic patient. However, several precautionary steps must be observed before skin testing with allergens: Testing is not performed during periods of bronchospasm, Epicutaneous tests (scratch and prick tests) are performed before other testing methods in an effort to minimize the risk of systemic reaction. Emergency equipment must be readily available to treat anaphylaxis.
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