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Volume 27, Number 6—June 2021
Research Letter

Multisystem Inflammatory Syndrome in Adults after Mild SARS-CoV-2 Infection, Japan

Yasuhiro Yamada1Comments to Author , Kaoru Fujinami1, Tadashi Eguchi, Hiroshi Takefuji, and Nobuaki Mori
Author affiliations: National Hospital Organization Tokyo Medical Center, Tokyo, Japan (Y. Yamada, K. Fujinami, T. Eguchi, H. Takefuji, N. Mori); University College London, London, UK (K. Fujinami)

Main Article


Laboratory studies performed at intensive care unit admission of patient with multisystem inflammatory syndrome after mild severe acute respiratory syndrome coronavirus 2 infection, Japan

Laboratory test Result Reference range
C-reactive protein, mg/dL 36.77 <0.14
Procalcitonin, ng/mL 3.67 <0.05
Interleukin 6, pg/dL 565 <4
Leukocyte count, × 109 cells/L 22.4 3.0–8.6
Neutrophil count, × 109 cells/L 21.0 1.5–5.8
Lymphocyte count, × 109 cells/L 1.0 1.0–3.0
Hemoglobin, g/dL 13.2 13.7–16.8
Platelets, × 109/L 180 158–348
Serum creatinine, mg/dL 2.54 0.65–1.07
Albumin, g/dL 2.5 4.1–5.1
Aspartate aminotransferase, U/L 19 13–30
Alanine aminotransferase, U/L 37 10–42
Ferritin, ng/mL 1563 17.9–464
Fibrinogen, mg/dL >900 200–400
D-dimer, ng/mL 5.7 <1
Creatine phosphokinase, U/L 37 59–248
Troponin T, ng/mL 0.861 <0.014
B-type natriuretic peptide, pg/mL >2000 <18.4

Main Article

1These authors contributed equally to this article.

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Page updated: May 18, 2021
Page reviewed: May 18, 2021
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