Aldehyde Test or Formol-Gel Test is used in the Diagnosis of Visceral Leishmaniasis (Kala-Azar). Visceral leishmaniasis, often known as Kala-Azar disease, is a parasitic disease caused by the parasite Leishmania donovani.

Why done? 

The following symptoms characterize this disease:

Remittent fever with or without chills

• Massive enlargement of the organs

• Widespread weakness

If it is not treated within two years, it is fatal.

Aldehyde Test Procedure: 

One drop of full-strength formalin is applied to one millilitre of serum, and the presence of rapid and complete coagulation indicates a good response. Lab Technician will provide full details about Aldehyde Test or Formol-Gel Test.

How does one prepare for the test? 

It is recommended to provide the doctor with any information regarding existing medications or allergies the patient may have. Depending on this information, the doctor may suggest steps before or/and after the test.

Required documents for Aldehydes

Doctor prescription. 
• A copy of a valid government-issued identification card with the address is required.

After care: 

No particular type of care is required.

Cost of Aldehydes Test in Delhi: 

The Aldehydes test cost varies by region and facility. So constantly get tested at trustworthy diagnostic centers like Ganesh Diagnostic. It is staffed by trained and experienced professionals to assure patient and visitor safety. 



Test Type Aldehydes

Aldehydes Test (Hematology Test)


Within 24 hours*

Test Price: ₹ 600
100% Safe & Hygienic

100% Safe & Hygienic

Affordable Pricing

Affordable Pricing

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Ambulance Service

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24X7 Free Ambulance Services in Delhi NCR. Emergency helpline, Contact to Ganesh Diagnostic & Imagine Centre, New Delhi 011 4744-4444

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