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Malaria

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Exams and Tests

Doctors use thick and thin blood smears to determine whether malaria-causing parasites are present in your blood. These tests should be done if you have been in a region where malaria is present, were exposed to mosquitoes, and have developed flu-like symptoms.

  • A blood smear is prepared from a blood sample.
  • If the first blood smear does not show the presence of malaria parasites but your doctor suspects malaria, you should have a repeat test every 8 to 12 hours for 36 hours.
  • During treatment, doctors use blood smears to see whether the number of malaria parasites in the blood is decreasing.

A blood test that can diagnose malaria rapidly also is available. If this rapid test indicates a person has malaria, the results are usually confirmed with a blood smear.

Recommended Related to Infectious Diseases

How to Rid Your Yard of Hidden Mosquitoes

Help reduce the number of mosquitoes in areas outdoors where you work or play, by draining sources of standing water. In this way, you reduce the number of places mosquitoes can lay their eggs and breed. At least once or twice a week, empty water from flower pots, pet food and water dishes, birdbaths, swimming pool covers, buckets, barrels, and cans. Check for clogged rain gutters and clean them out. Remove discarded tires, and other items that could collect water. Be sure to check...

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Other tests

Other useful tests that may be done include:

Other tests being developed to diagnose malaria include genetic tests or other blood tests that highlight parasites by using special stains. These experimental tests are not as easy to do and are not as frequently used as blood smears.

In the United States, malaria is an infectious disease that must be reported to the local or state health department.

WebMD Medical Reference from Healthwise

Last Updated: April 20, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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