A man in his eighties with gait problems and elevated CRP

BACKGROUND: Rapid detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in hospitals is essential for early isolation and treatment. However, false positive test results can have adverse consequences for patient safety.

CASE PRESENTATION: A man in his eighties was admitted to hospital with fatigue and new-onset gait and balance difficulties, without fever or symptoms of focal infection, but with elevated C-reactive protein. On admission, he tested positive on screening for SARS-CoV-2 using a fully automated rapid reverse transcription polymerase chain reaction (RT-PCR) test. He was placed together with two patients with confirmed COVID-19 infection in cohort isolation. Due to very low exposure risk and nonspecific symptoms, the primary and multiple subsequent test swabs were analysed using RT-PCR analyses guided by laboratory personnel, and all gave negative results. The patient had several risk factors for developing severe COVID-19 illness, but fortunately he remained COVID-19 negative on repeated tests.

INTERPRETATION: The case presentation highlights the danger of false-positive SARS-CoV-2 test results, and the importance of interpreting a diagnostic test in the context of pretest probability and test accuracy. It also underlines the risk of using cohort isolation instead of individual isolation.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:141

Enthalten in:

Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke - 141(2021), 2021-14 vom: 12. Okt.

Sprache:

Norwegisch

Weiterer Titel:

En mann i 80-årene med gangvansker og høy CRP-verdi

Beteiligte Personen:

Berg, Åse [VerfasserIn]
Doeland, Herman [VerfasserIn]
Fardal, Hilde [VerfasserIn]
Flørenæs, Even [VerfasserIn]
Bjørnestad, Espen Øglænd [VerfasserIn]
Lyngøy, Anita Sandmo [VerfasserIn]
Syre, Heidi [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Completed 22.10.2021

Date Revised 23.11.2021

published: Electronic-Print

Citation Status MEDLINE

doi:

10.4045/tidsskr.21.0240

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM331824671