|
|
|
|
|
|
|
|
|
|
|
|
| Definition: |
Histoplasma is an infection caused by a fungus that is usually found in the soil. Within the United States, there is a high incidence of infection in certain areas such as the Mississippi, Missouri, and Ohio River Valleys, and in Puerto Rico. The skin test detects exposure to the fungus.
|
| How the test is performed: |
The test site (an area with hair, usually the forearm) is cleansed. The allergen is then injected just below the skin surface. The test is read at 24-hours and at 48 hours. Occasionally, the reactions may not be present until the 4th day.
|
| How to prepare for the test: |
Adult:
No special preparation is necessary for this test.
Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experiences, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:
|
| How the test will feel: |
There will be a brief sting as a needle is inserted just below the skin surface.
|
| Why the test is performed: |
To see if the individual has been exposed to the fungus that causes histoplasmosis.
|
| Normal Values: |
No reaction (inflammation) at the site of the test is normal. Of note, the skin test can sometimes make histoplasmosis antibody tests turn positive.
|
| What abnormal results mean: |
The individual has been exposed to the microorganism that causes histoplasmosis.
|
|
|
Review Date: 12/7/2001
Reviewed By: Camille Kotton, M.D., Infectious Diseases Division, Massachusetts General Hospital and Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network.
|
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
|
