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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">clinmed</journal-id><journal-title-group><journal-title xml:lang="ru">Клиническая медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical Medicine (Russian Journal)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0023-2149</issn><issn pub-type="epub">2412-1339</issn><publisher><publisher-name>ООО «Медицинское информационное агентство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30629/0023-2149-2023-101-4-5-241-246</article-id><article-id custom-type="elpub" pub-id-type="custom">clinmed-544</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЗАМЕТКИ И НАБЛЮДЕНИЯ ИЗ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NOTES AND OBSERVATIONS FROM PRACTICE</subject></subj-group></article-categories><title-group><article-title>Клинический случай передозировки метотрексата, особенность диагностики в условиях пандемии COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Clinical case of methotrexate overdose, the peculiarity of diagnostics in the conditions of the COVID-19 pandemic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Заборских</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaborskikh</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Заборских Ирина Вячеславовна — врач</p><p>456304, Миасс</p></bio><bio xml:lang="en"><p>Zaborskikh Irina V.</p><p>456304, Miass</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Симоненко</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Simonenko</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Симоненко Владимир Борисович — д-р мед. наук, профессор, член-корреспондент РАН, профессор кафедры терапии неотложных состояний филиала</p><p>107392</p></bio><bio xml:lang="en"><p>Simonenko Vladimir B.</p><p>107392, Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8400-0363</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сарманаев</surname><given-names>С. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Sarmanaev</surname><given-names>S. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сарманаев Салават Хамитович (Sarmanaev Salavat Kh.) — д-р мед. наук, профессор, заместитель заведующего токсикологическим центром; заведующий кафедрой токсикологии и клинической фармакологии Академии постдипломного образования</p><p>119435, Москва</p><p>125371, Москва</p></bio><bio xml:lang="en"><p>Sarmanaev Salavat Kh.</p><p>119435, Moscow</p><p>125371, Moscow</p></bio><email xlink:type="simple">ssarm@bk.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7952-4100</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Туктарова</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Tuktarova</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Туктарова Роза Раисовна — врач — анестезиолог-реаниматолог</p><p>450071, Уфа</p></bio><bio xml:lang="en"><p>Tuktarova Rosa R.</p><p>450071, Ufa</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юрина</surname><given-names>Ю. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurina</surname><given-names>Yu. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрина Юлия Олеговна — канд. мед. наук, доцент кафедры токсикологии и клинической фармакологии</p><p>125371, Москва</p></bio><bio xml:lang="en"><p>Yurina Yulia O.</p><p>125371, Moscow</p></bio><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГАУЗ «Городская больница № 2 г. Миасс» Многопрофильный медицинский центр «Северный»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>City Hospital No. 2 of Miass Multidisciplinary Medical Center “Severny”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Филиал ФГБВОУ ВО Военно-медицинская академия им. С.М. Кирова в г. Москве Минобороны России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Military Medical Academy named after S.M. Kirov (Moscow branch) of the Ministry of Defense of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Федеральный научно-клинический центр физико-химической медицины им. акад. Ю.М. Лопухина Федерального медико-биологического агентства»; Академия постдипломного образования ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий Федерального медико-биологического агентства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency; Academy of Postgraduate Education of the Federal State Budgetary Institution “Federal Scientifi c and Clinical Center for &#13;
Specialized Types of Medical Care and Medical Technologies of the Federal Medical and Biological Agency”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ГБУЗ Республики Башкортостан Городская клиническая больница № 21 г. Уфа</institution><country>Россия</country></aff><aff xml:lang="en"><institution>City Clinical Hospital No. 21 Ufa</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Академия постдипломного образования ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий Федерального медико-биологического агентства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Academy of Postgraduate Education of the Federal State Budgetary Institution “Federal Scientifi c and Clinical Center for &#13;
Specialized Types of Medical Care and Medical Technologies of the Federal Medical and Biological Agency”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2023</year></pub-date><volume>101</volume><issue>4-5</issue><fpage>241</fpage><lpage>246</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Заборских И.В., Симоненко В.Б., Сарманаев С.Х., Туктарова Р.Р., Юрина Ю.О., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Заборских И.В., Симоненко В.Б., Сарманаев С.Х., Туктарова Р.Р., Юрина Ю.О.</copyright-holder><copyright-holder xml:lang="en">Zaborskikh I.V., Simonenko V.B., Sarmanaev S.K., Tuktarova R.R., Yurina Y.O.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.clinmedjournal.com/jour/article/view/544">https://www.clinmedjournal.com/jour/article/view/544</self-uri><abstract><p>Многообразие и низкая специфичность клинических проявлений заболевания COVID-19, его широкое распространение представляют трудности для дифференциальной диагностики, в том числе с состояниями, обусловленными передозировкой лекарственных средств. Трудный опыт оказания медицинской помощи в пандемию коронавирусной инфекции обращает внимание на важность и необходимость дальнейшего усовершенствования ее диагностики, в особенности при коморбидных состояниях. Приводится описание клинического случая дифференциальной диагностики неятрогенной передозировки метотрексата у пациента с предварительным диагнозом COVID-19 (U07.2 — вирус не установлен).</p></abstract><trans-abstract xml:lang="en"><p>The diversity and low specifi city of clinical manifestations of COVID-19, as well as its widespread prevalence, present diffi  culties for diff erential diagnosis, including  conditions caused by drug overdose. The challenging experience of providing medical care during the coronavirus pandemic draws attention to the importance and necessity of further improving its diagnosis, especially in comorbid conditions. A clinical case of diff erential diagnosis of non- iatrogenic overdose of methotrexate in a patient with a preliminary diagnosis (virus unknown) is described: U07.2 (ICD-10) COVID-19.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>диагностика</kwd><kwd>коморбидные состояния</kwd><kwd>метотрексат</kwd><kwd>передозировка лекарственных средств</kwd><kwd>отравление</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>diagnosis</kwd><kwd>comorbid conditions</kwd><kwd>methotrexate</kwd><kwd>drug overdose</kwd><kwd>poisoning</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Tu H., Tu S., Gao S., Shao A., Sheng J. Current epidemiological and clinical features of COVID-19; a global perspective from China. J. Infect. 2020;81(1):1–9. 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