Screening test for cyanide and phosphine in gastric lavage

Specimen Required

Fasting Required

Purpose of the Test

Cyanide and phosphine screening tests are ordered when there is suspicion of poisoning with these toxic substances. Cyanide is a highly toxic chemical that can cause seizures, respiratory arrest, and death. Phosphine is a gas that can cause pulmonary edema, respiratory failure, and death.

When this test is required

It is important to note that these tests only screen for the presence of cyanide and phosphine in the gastric lavage sample. If poisoning with these substances is suspected, additional tests may be necessary to confirm the diagnosis and determine the appropriate treatment.

What the Test Detects

The test is used to diagnose cyanide or phosphine poisoning in individuals who may have been exposed to these substances. The results of this test are used in conjunction with other clinical information to determine the appropriate treatment for the patient.

Preparation for the Test

There are no specific test preparations 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 test screens for the presence of cyanide and phosphine in the gastric lavage sample. The screening test uses a colorimetric method to detect the presence of these toxic substances.

Additional Notes

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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