Test Detail
Overview
Interpreting Results
FAQ's

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Written by
Dr. Betina Chandolia
BDS, MDS - Oral Pathology and Microbiology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Malarial Falciparum and Vivax Antigen

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Malarial Falciparum and Vivax Antigen
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. A copy of valid government-issued identification card with the address is required.

Overview


What is Malarial Falciparum and Vivax Antigen?

The Malarial Falciparum and Vivax antigen test detects malaria antigens in the blood sample. Identification of malarial parasite by thick and thin smears is considered as the gold standard for the diagnosis of this infection. However, antigen-based rapid diagnostic tests play an important role in those places where there is lack of microscopes and trained technicians.

Why is Malarial Falciparum and Vivax Antigen done?

The Malarial Falciparum and Vivax Antigen test is done 


  • If you have signs or symptoms suggestive of malaria-like fever with shaking chills, headaches, nausea, vomiting, diarrhea, profuse sweating, and headache


  • As a part of fever panel 


What does Malarial Falciparum and Vivax Antigen Measure?

The Malarial Falciparum and Vivax antigen test is a rapid diagnostic test which detects the presence of malarial antigen in the blood sample. Malaria is an infectious disease which is caused by a species of Plasmodium parasite. It is transmitted by the bite of an infected mosquito (female anopheles). The species which cause infections in humans include Plasmodium Vivax, Plasmodium malariae, Plasmodium ovale, and Plasmodium falciparum. 


This malarial infection may rarely pass from a woman to her baby during pregnancy, labor, or delivery. Also, the chances of the spread of infection are very low through blood transfusion, sharing of contaminated needles or syringes, and organ transplant. 


When an infected mosquito bites a person, the parasites enter into the blood and travel to the liver. After a person is infected it takes about 7-30 days for the eggs to mature. The parasites enter the red blood cells of a person where they multiply inside these cells. These cells burst within 48 to 72 hours which leads to the occurrence of symptoms of malaria. 

The disease can relapse in case the infection is caused by P. vivax and P. ovale species. This is because these parasites can remain inoperative in the liver before they enter again into the blood and may take up to months and even years for the symptoms to appear.

If the malarial infection is not treated, it can cause severe illness and even death. The species likely to cause life-threatening disease is P. falciparum.


Interpreting Malarial Falciparum and Vivax Antigen results


Interpretations

  • Positive test for Plasmodium Falciparum indicates infection with the same parasite while the negative test is suggestive of no infection 

  • Positive test for Plasmodium vivax indicates infection with the same parasite while negative is suggestive of no infection



Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Malarial Falciparum and Vivax Antigen


Frequently Asked Questions about Malarial Falciparum and Vivax Antigen

Q. Can Malaria occur through only by the bite of female anopheles mosquito?
No, it is not necessary that malaria can also be caused by the bite of the female anopheles mosquito. Malaria can also occur after an organ transplant, by sharing needles or syringes, or after blood transfusion.
Q. How is the blood sample taken?
The healthcare provider takes a blood sample from the arm. The site from where the blood is to be withdrawn is cleaned with a swab of rubbing alcohol. This is then followed by inserting a small needle which has a tube attached to it for collecting blood. Once the sufficient blood for analysis is withdrawn, the needle is removed. The site is then covered with a gauze pad.
Q. Is there any risk associated with the withdrawal of blood sample procedure?
As such there is no risk but in few cases, bruising, bleeding, and infection at the puncture site can be seen. In very few cases, there can be swelling of the vein after the blood is withdrawn.
Q. Do negative results mean that malaria infection is not there?
No, negative results do not confirm that malaria infection is not present. These negative results might be due to the absence of malarial parasite in the prepared peripheral blood film. If your symptoms persist then your doctor may advise you a re-test to confirm the diagnosis.
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