Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria

Background: Critical value notification (CVN) entails notifying doctors or other laboratory users of aberrant laboratory results that threaten the patient’s life and of any values for which reporting delays could negatively impact the patient’s health. Critical value notification practices in clinic...

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Main Authors: Lucius C. Imoh, Idris Y. Mohammed, Ifeyinwa D. Nnakenyi, Ephraim U. Egbuagha, Tomisin M. Adaja, Chinelo P. Onyenekwu
Format: Article
Language:English
Published: AOSIS 2023-12-01
Series:African Journal of Laboratory Medicine
Subjects:
Online Access:https://ajlmonline.org/index.php/ajlm/article/view/2249
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author Lucius C. Imoh
Idris Y. Mohammed
Ifeyinwa D. Nnakenyi
Ephraim U. Egbuagha
Tomisin M. Adaja
Chinelo P. Onyenekwu
author_facet Lucius C. Imoh
Idris Y. Mohammed
Ifeyinwa D. Nnakenyi
Ephraim U. Egbuagha
Tomisin M. Adaja
Chinelo P. Onyenekwu
author_sort Lucius C. Imoh
collection DOAJ
description Background: Critical value notification (CVN) entails notifying doctors or other laboratory users of aberrant laboratory results that threaten the patient’s life and of any values for which reporting delays could negatively impact the patient’s health. Critical value notification practices in clinical laboratories in Nigeria and sub-Saharan Africa are largely unknown. Objective: We conducted a nationwide survey to obtain baseline information on CVN practice by Nigeria’s laboratories. Methods: This cross-sectional study was conducted among purposively selected secondary- and tertiary-tier, public and private clinical laboratories across northern and southern Nigeria between October 2015 and December 2015. Consenting senior laboratory staff completed and returned a structured questionnaire, that gathered data on respondents’ demographics, designations, and institutional characteristics and practices regarding CVN. Results: One hundred and thirty-four laboratories responded to the questionnaires. Only 69 (51.5 %) laboratories practised CVN; only 23 (33.3%) had existing written policies guiding the practice. Most (43; 62.3%) laboratories use similar critical values (CVs) for adult and paediatric populations. Most laboratories (27; 39.1%) obtained their CVs by combining published literature and local opinions from stakeholders. Physical dispatch (42; 60.9%) followed by telephone calls (38; 55.1%) were the most common means of notification. Private laboratories, compared with public hospital laboratories, were likelier to have separate paediatric CV lists (p = 0.019) and practise telephone notifications (p  0.001). Conclusion: Critical value notification practices vary and are often suboptimal in many clinical laboratories in Nigeria, which is exacerbated by the absence of guiding policies and national recommendations for post-analytical procedures. What this study adds: This study provides baseline information on CVN practice by Nigeria’s laboratories. The study explores the causes of practice variations that can serve as a foundation for enhancing critical reporting and post-analytical services, particularly in clinical laboratories in sub-Saharan Africa.
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spelling doaj.art-2371209e24e244f4a450d64cb9883adc2023-12-19T08:28:05ZengAOSISAfrican Journal of Laboratory Medicine2225-20022225-20102023-12-01121e1e710.4102/ajlm.v12i1.2249455Critical values notification: A nationwide survey of practices among clinical laboratories across NigeriaLucius C. Imoh0Idris Y. Mohammed1Ifeyinwa D. Nnakenyi2Ephraim U. Egbuagha3Tomisin M. Adaja4Chinelo P. Onyenekwu5Department of Chemical Pathology, Faculty of Medical Sciences, University of Jos, Jos, Plateau StateDepartment of Chemical Pathology & Immunology, College of Health Sciences, Bayero University and Aminu Kano Teaching Hospital, Kano, Kano StateDepartment of Chemical Pathology, Faculty of Medical Sciences, University of Nigeria Nsukka and University of Nigeria Teaching Hospital, Enugu, Enugu StateDepartment of Pathology, Clinix Healthcare Ltd, Lagos, Lagos StateDepartment of Chemical Pathology, Federal Medical Centre, Owo, Ondo StateDepartment of Chemical Pathology, Ben Carson Snr School of Medicine, Babcock University and Babcock University Teaching Hospital, Ilishan-Remo, Ogun StateBackground: Critical value notification (CVN) entails notifying doctors or other laboratory users of aberrant laboratory results that threaten the patient’s life and of any values for which reporting delays could negatively impact the patient’s health. Critical value notification practices in clinical laboratories in Nigeria and sub-Saharan Africa are largely unknown. Objective: We conducted a nationwide survey to obtain baseline information on CVN practice by Nigeria’s laboratories. Methods: This cross-sectional study was conducted among purposively selected secondary- and tertiary-tier, public and private clinical laboratories across northern and southern Nigeria between October 2015 and December 2015. Consenting senior laboratory staff completed and returned a structured questionnaire, that gathered data on respondents’ demographics, designations, and institutional characteristics and practices regarding CVN. Results: One hundred and thirty-four laboratories responded to the questionnaires. Only 69 (51.5 %) laboratories practised CVN; only 23 (33.3%) had existing written policies guiding the practice. Most (43; 62.3%) laboratories use similar critical values (CVs) for adult and paediatric populations. Most laboratories (27; 39.1%) obtained their CVs by combining published literature and local opinions from stakeholders. Physical dispatch (42; 60.9%) followed by telephone calls (38; 55.1%) were the most common means of notification. Private laboratories, compared with public hospital laboratories, were likelier to have separate paediatric CV lists (p = 0.019) and practise telephone notifications (p  0.001). Conclusion: Critical value notification practices vary and are often suboptimal in many clinical laboratories in Nigeria, which is exacerbated by the absence of guiding policies and national recommendations for post-analytical procedures. What this study adds: This study provides baseline information on CVN practice by Nigeria’s laboratories. The study explores the causes of practice variations that can serve as a foundation for enhancing critical reporting and post-analytical services, particularly in clinical laboratories in sub-Saharan Africa.https://ajlmonline.org/index.php/ajlm/article/view/2249critical valuescritical value reportingcritical value notificationpost-analytical services, laboratory quality management
spellingShingle Lucius C. Imoh
Idris Y. Mohammed
Ifeyinwa D. Nnakenyi
Ephraim U. Egbuagha
Tomisin M. Adaja
Chinelo P. Onyenekwu
Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
African Journal of Laboratory Medicine
critical values
critical value reporting
critical value notification
post-analytical services, laboratory quality management
title Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
title_full Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
title_fullStr Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
title_full_unstemmed Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
title_short Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
title_sort critical values notification a nationwide survey of practices among clinical laboratories across nigeria
topic critical values
critical value reporting
critical value notification
post-analytical services, laboratory quality management
url https://ajlmonline.org/index.php/ajlm/article/view/2249
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