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Are malaria films requested appropriately? A study of all film requests in one health district
Abstract:
In a 12-month period 238 patients had blood films examined for malaria parasites in a London district general hospital. All the available medical records of these patients were studied. The ethnic origin and country from which the patients had travelled were typical of an area with a large immigrant population. 27 of the films were positive. 39 were judged to have been requested inappropriately, usually because an adequate travel history had not been taken. Imported malaria is an important problem in this health district and contributes significantly to the laboratory workload.
Insights
Imported malaria diagnoses are significant in London, with 27 positive blood films identified. Inappropriate requests, often due to poor travel history, highlight a need for improved diagnostic practices.
Area of Science:
- Medical Parasitology
- Clinical Microbiology
- Public Health
Background:
- Imported malaria poses a significant public health challenge in non-endemic regions.
- District general hospitals manage a substantial number of suspected malaria cases.
Purpose of the Study:
- To evaluate the diagnostic yield of blood film examinations for malaria parasites.
- To assess the appropriateness of malaria test requests in a London hospital.
- To understand the contribution of imported malaria to laboratory workload.
Main Methods:
- Retrospective review of 238 patient medical records over a 12-month period.
- Analysis of blood films examined for malaria parasites.
- Assessment of patient ethnic origin and travel history.
Main Results:
- 27 out of 238 blood films examined were positive for malaria parasites.
- 39 requests were deemed inappropriate, primarily due to inadequate travel history documentation.
- Patient demographics and travel origins were consistent with a population with a high immigrant rate.
Conclusions:
- Imported malaria is a notable issue within this London health district.
- Inappropriate laboratory test requests for malaria are common and impact workload.
- Improved patient travel history collection is crucial for accurate malaria diagnosis.