In most countries, there are likely to be some laboratories with limited resources, but in economic distressed countries, there are few laboratories with highly trained technologists and sophisticated equipment. In these countries therefore, i t is not unusual for laboratory tests to be carried out by nurses and ordelies in outpatient consulting rooms, corridors and in rural health centres.
Understaffing,poor morale, inadequate equipment and erratic supplies of reagents are chronic problems in laboratories in poorer countries and these factors have a major impact on the range and quality of services that can be offered. Many smaller laboratories are multifunctional, performing Haematology, Parasitology, Clinical chemistry and Bacteriology tests. A blood transfusion service is usually available at the larger institutions and unless there is a national blood service, laboratory staff will be responsible for donor selection, blood collection and issuing of blood. If there is no organisation of public health laboratories, routine laboratories will be required to provide high quality health surveillance data for epidemiological and public health monitoring.
In a number of economically distressed countries, the difficulties are compounded by the fact that health services are becoming overwhelmed by expanding epidemics of HIV/AIDS(Human immunodeficiency vírus/Acquired immune deficiency syndrome), tuberculosis and malária. Diagnosis and monitoring of these diseases require a healthy,robust and reliable laboratory service. Thus malária diagnosis must be confirmed by a laboratory test because other disorders can masquerade clinically as malária. The diagnosis of tuberculosis may require boné marrow aspiration and culture and trephine biospy examination, especially in patients who are also HIV positive because in these cases sputum tests for acid fast organisms are frequently negative. Monitoring of HIV progression to AIDS and effectiveness of antiretroviral therapy requires Haemoglobin estimation, CD4-poistive lymphocyte counts and plasma viral load estimation.
The main purpose of this topic-(Haematology practice in distressed economy) is to point towards an effective haematology service that can be provided despite serious limitations.
Table of Contents
1. Introduction
2. Organization of clinical laboratory service
2.1 Subdistrict facilities including health centres
2.2 District Hospitals
2.3 Central-regional and teaching Hospitals
2.4 Availability of tests at each level
3. Essential haematology tests
3.1 Cost per test
3.2 Diagnostic reliability
3.3 Accuracy of a test
3.4 Precision of a test
3.5 Diagnostic sensitivity of a test
3.6 Diagnostic specificity of a test
3.7 Clinical usefulness of a test
3.8 Maintaining quality and reliability of tests
3.9 Quality control of a test method (technical quality)
3.10 Internal quality control (IQC)
3.11 External quality assessment (EQA)
4. Basic haematology tests
4.1 Haemoglobinometry
4.2 Packed cell volume (PCV)
4.3 Manual cell counts using counting chambers
4.4 Peripheral blood morphology
4.5 Modified (one-tube) osmotic fragility test
4.6 Haemoglobin E screening test
5. Laboratory support for management of HIV/AIDS: CD4-positive T-cell counts
5.1 Laboratory management
5.2 Interlaboratory communication
5.3 Specimen transport
5.4 Staff training
5.5 Clinical staff interaction
5.6 Health management teams
5.7 Health and safety
Objectives & Core Themes
This work aims to provide a framework for maintaining effective haematology laboratory services within economically distressed regions, addressing the challenges of limited resources, infrastructure, and staff training while ensuring diagnostic quality.
- Optimization of laboratory services under financial and technical constraints.
- Strategic planning and hierarchical organization of clinical laboratories.
- Methods for ensuring diagnostic reliability, accuracy, and quality control.
- Management of essential haematological tests for HIV/AIDS and common diseases.
- Logistical support, communication, and safety protocols in resource-poor settings.
Excerpt from the Book
MAINTAINING QUALITY AND RELIABILITY OF TESTS
Paradoxically, i t is in an economic distressed laboratories, where equipment and supplies are limited and training and supervision may be minimal, that the level of skills and motivation required to maintain quality of service need to be highest. Even the most Basic of laboratories should ensure that procedures are in place to monitor quality. In addition to monitoring the technical quality of each test, the quality of the whole services must be ensured both within the laboratory( internal control) and between laboratories( external control).
Standard operating procedures (SOP) should be drafted for every method. In addition to providing standardised techniques, these are excellent teaching resources and adherence to these procedures will drastically minimise errors.
Summary of Chapters
1. Introduction: Discusses the challenges faced by laboratories in economically distressed countries and the necessity of planning effective services despite limited resources.
2. Organization of clinical laboratory service: Outlines the three-tier structure of laboratory services, from subdistrict facilities to central teaching hospitals.
3. Essential haematology tests: Examines factors contributing to test costs, diagnostic reliability, and methods for implementing quality control.
4. Basic haematology tests: Details practical methodologies for measuring haemoglobin, performing manual cell counts, and screening for specific conditions like haemoglobinopathies.
5. Laboratory support for management of HIV/AIDS: CD4-positive T-cell counts: Addresses the logistical and management aspects required to support the diagnosis and monitoring of HIV/AIDS in resource-constrained environments.
Keywords
Haematology, Distressed Economy, Laboratory Management, Diagnostic Reliability, Quality Control, Haemoglobinometry, HIV/AIDS, CD4 Counting, Resource-Poor Settings, Clinical Laboratory, Standard Operating Procedures, Microscopy, Anaemia, Public Health, Healthcare Planning.
Frequently Asked Questions
What is the primary focus of this work?
The work focuses on the challenges and strategies for maintaining viable and effective haematology laboratory services in regions with severe economic and infrastructure constraints.
Which settings are considered in this book?
It considers laboratory environments in economically distressed countries, ranging from rural health centers and subdistrict facilities to central regional and teaching hospitals.
What is the central goal regarding laboratory services?
The goal is to point toward an effective haematology service that can be provided despite serious limitations by identifying necessary facilities and planning referral networks.
What scientific methodology is proposed for managing lab quality?
The work proposes implementing standard operating procedures (SOPs), rigorous internal quality control, and linking rural facilities with higher-level centers for external quality assessment.
What does the main body address?
The main body addresses organizational hierarchies, cost-effectiveness formulas, quality assurance techniques, specific testing methodologies for haemoglobin and cell counts, and the management of laboratory-clinical interactions.
Which keywords best describe this publication?
Keywords include Haematology, Laboratory Management, Diagnostic Reliability, Quality Control, and Resource-Poor Settings.
Why is standardizing laboratory procedures important in these regions?
Standardizing procedures acts as an essential teaching resource for less trained staff and drastically minimizes errors in environments where supervision may be minimal.
How should laboratories handle interlaboratory communication?
The text suggests utilizing digital wireless data communication (such as the GSM network) to bypass delays caused by the absence of fixed-line infrastructure for reporting results.
- Quote paper
- Peter Okeke (Author), 2010, Haematology Practice In Distressed Economy, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/163508
