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Laboratory practice at the periphery in developing countries.

S M Lewis1

  • 1Department of Haematology, Imperial College Faculty of Medicine, Hammersmith Hospital, London, UK.

International Journal of Hematology
|November 15, 2002
PubMed
Summary
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Implementing robust primary health care, including essential haematology services, is crucial for under-resourced regions. The Haemoglobin Colour Scale (HCS) offers a reliable, low-cost solution for anaemia screening in remote areas.

Area of Science:

  • Clinical diagnostics
  • Public health
  • Laboratory medicine

Background:

  • Effective national health services require comprehensive primary health care, particularly in rural and under-resourced areas with limited facilities and transport.
  • Haematology plays a vital role in diagnosis and patient management, emphasizing test selection, clinical relevance, and technical reliability in peripheral settings.
  • The World Health Organization (WHO) has outlined a tiered approach to essential diagnostic tests for various healthcare worker levels.

Purpose of the Study:

  • To highlight the importance of haematology in primary healthcare, especially in resource-limited settings.
  • To discuss the WHO's proposed framework for essential diagnostic tests and standardized laboratory practices.
  • To introduce the Haemoglobin Colour Scale (HCS) as a tool for anaemia screening in areas where reliable diagnosis is challenging.

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Main Methods:

  • Review of WHO guidelines for essential haematology tests and laboratory services in peripheral health clinics.
  • Discussion of training needs and quality assurance programs for standardized diagnostic methods.
  • Introduction and validation of the Haemoglobin Colour Scale (HCS) for point-of-care haemoglobin measurement.

Main Results:

  • WHO has categorized essential tests for different healthcare provider levels, from nurses to trained doctors.
  • Standardized protocols for specimen handling, transport, and quality assurance are essential for reliable diagnostics.
  • The Haemoglobin Colour Scale (HCS) provides a simple, portable, and accurate method for haemoglobin estimation, particularly valuable for anaemia screening in resource-limited environments.

Conclusions:

  • Strengthening primary healthcare in peripheral and rural areas necessitates integrated haematology services and standardized testing protocols.
  • The Haemoglobin Colour Scale (HCS) is a promising, cost-effective tool for addressing the high global burden of anaemia, especially in developing countries.
  • A coordinated approach involving training, quality assurance, and accessible diagnostic tools is critical for improving health outcomes in under-resourced settings.