The Effectiveness of Dipstick for the Detection of Urinary Tract Infection
Joint Authors
Dadzie, Isaac
Quansah, Elvis
Puopelle Dakorah, Mavis
Abiade, Victoria
Takyi-Amuah, Ebenezer
Adusei, Richmond
Source
Canadian Journal of Infectious Diseases and Medical Microbiology
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-23
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Background.
The balance between the choices of UTI diagnostic tools in most primary care settings has been settled for by the more rapid, less labour-intensive dipstick.
This study aimed to evaluate the effectiveness of dipstick for diagnosing UTI.
Method.
A total of 429 urine samples were collected from patients suspected of UTI; cultured on cysteine-lactose-electrolyte-deficient (CLED) agar, blood agar, and MacConkey agar; and incubated at 37°C overnight.
Urine cultures with bacteria count ≥105 cfu/ml were classified as “positive” for UTI.
A dipstick was used to screen for the production of nitrite (NIT) and leucocyte esterase (LE), following the manufacturer’s instructions.
Biochemical reactions of nitrite and leucocyte esterase > “trace” were classified as “positive.” A quantitative urine culture was used as the gold standard.
Results.
The highest sensitivity value and negative predictive value were recorded for the combined “NIT+ or LE+” dipstick results.
The highest specificity value, positive predictive value, positive likelihood ratio, and negative likelihood ratio were recorded for “nitrite-positive and leucocyte esterase-positive” results.
Combined “nitrite-positive or leucocyte-positive” result was relatively the best indicator for accurate dipstick diagnosis, with AUC = 0.7242.
Cohen’s kappa values between dipstick diagnosis and quantitative culture were <0.6.
Conclusion.
Combined performance of nitrite and leucocyte esterase results appeared better than the solo performance of nitrite and leucocyte esterase.
However, little confidence should be placed on dipstick diagnosis; hence, request for quantity culture should be encouraged in the primary healthcare settings.
American Psychological Association (APA)
Dadzie, Isaac& Quansah, Elvis& Puopelle Dakorah, Mavis& Abiade, Victoria& Takyi-Amuah, Ebenezer& Adusei, Richmond. 2019. The Effectiveness of Dipstick for the Detection of Urinary Tract Infection. Canadian Journal of Infectious Diseases and Medical Microbiology،Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1130120
Modern Language Association (MLA)
Dadzie, Isaac…[et al.]. The Effectiveness of Dipstick for the Detection of Urinary Tract Infection. Canadian Journal of Infectious Diseases and Medical Microbiology No. 2019 (2019), pp.1-6.
https://search.emarefa.net/detail/BIM-1130120
American Medical Association (AMA)
Dadzie, Isaac& Quansah, Elvis& Puopelle Dakorah, Mavis& Abiade, Victoria& Takyi-Amuah, Ebenezer& Adusei, Richmond. The Effectiveness of Dipstick for the Detection of Urinary Tract Infection. Canadian Journal of Infectious Diseases and Medical Microbiology. 2019. Vol. 2019, no. 2019, pp.1-6.
https://search.emarefa.net/detail/BIM-1130120
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1130120