Screening Test of Para-Phenylenediamine (PPD) in Blood

Specimen Required

Fasting Required

Purpose of the Test

Para-phenylenediamine (PPD) screening test is ordered when there is suspicion of PPD poisoning. PPD is commonly used as a hair dye, but it can cause severe allergic reactions and toxicity if absorbed through the skin or ingested.

When this test is required

The test is requested when there is suspicion of PPD poisoning. This may occur in cases where an individual has applied PPD-containing hair dye or has accidentally ingested PPD.

What the Test Detects

The test screens for the presence of PPD in the blood sample. The screening test uses a colorimetric method to detect the presence of PPD.

Preparation for the Test

No specific test preparation is required for this test. However, it is important to inform the healthcare provider of any medications, supplements, or herbal products that you are taking.

Sample Requirements

The sample required for this test is a blood sample. The healthcare provider will take a sample of your blood using a needle inserted into a vein in your arm.

Additional Notes

It is important to note that these tests only screen for the presence of PPD in the blood sample. If poisoning with this substance is suspected, additional tests may be necessary to confirm the diagnosis and determine the appropriate treatment. Additionally, other conditions can cause false positives in the screening tests, so the results should always be interpreted in the context of the patient’s clinical presentation.

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