200 results found
Medical tests
… to find out what substance, or allergen , may trigger an allergic response in a person. Skin tests are usually done … allergen is placed on or below the skin to see if a reaction develops. There are three types of skin tests: Skin … even when a person is allergic to the substance. Has had a severe allergic reaction ( anaphylaxis ). Has had positive …
Medical tests
… Risks In some people, the dilating eyedrops can cause an allergic reaction. The dye used in an angiogram may upset your … rarely, a person may have a serious allergic reaction ( anaphylaxis ) and need emergency care. Results Retinal …
Medical tests
… To Prepare Tell your doctor before your test if you: Are allergic to any type of contrast material. Are allergic to … Are or might be pregnant. Have ever had a serious allergic reaction ( anaphylaxis ) from any substance. For instance, have you had …
Medical tests
… breast milk. Before the IVP, tell your doctor if: You are allergic to the iodine dye used as the contrast material for … that contains iodine. You have ever had a serious allergic reaction (anaphylaxis), such as after being stung by a bee or from …
Medical tests
… multivitamins, and the heart medicine amiodarone Are allergic to any medicines, such as iodine. But even if you … in the tracer is so small that your chance of an allergic reaction is very low. Have ever had a serious allergic reaction ( anaphylaxis ) from any substance, such as the venom from a …
Medical tests
… people: With a known TB infection. Who have had a previous severe reaction to the TB antigens. Who have a skin rash that would … skin test, especially if you've had tuberculosis (TB). An allergic reaction can cause a lot of swelling and pain at …
Medical tests
… only to tuberculosis bacteria. Antibodies also work in allergic reactions. Occasionally, antibodies may be made against your … fungus spores, and animal dander. They are involved in allergic reactions to milk, some medicines, and some …
Medical tests
… conditions cause antibodies to be made. Transfusion reaction Human blood is typed by certain markers (called … happens, a fetus or newborn can develop mild to severe problems (called Rh disease or erythroblastosis … happens, a fetus or newborn can develop mild to severe problems (called Rh disease or erythroblastosis …
Medical tests
… that could include surgery. There is a chance of an allergic reaction to the iodine dye. The reaction can be mild (itching, rash) or severe (trouble breathing or sudden shock). Most reactions …
Medical tests
… positive) ELISA test. Other tests Polymerase chain reaction (PCR) test. Polymerase chain reaction (PCR) testing detects the genetic material ( DNA ) … Lyme disease antibodies are found. The polymerase chain reaction (PCR) test may be done to confirm a Lyme infection …
