Table 2

Laboratory investigations

Investigation	Normal value	Day 0	Day 3	Day 10
Haemoglobin	130–180 g/L	150	156	166
White cell count	4.0–11.0×10⁹/L	10.3	9.8	5.4
Neutrophils	2.0–7.5×10⁹/L	8.8	8.4	4.6
Lymphocytes	1.5–4.0	1.0	0.7	0.6
Platelets	130–400×10⁹/L	224	171	109
Sodium	133–146 mmol/L	134	143	141
Potassium	3.5–5.3 mmol/L	4.3	4.0	3.7
Urea	2.5–6.5 mmol/L	4.9	6.5	5.8
Creatine	54–110 umol/L	84	66	58
Estimated GFR (mL/min)		83.8	>90	>90
C reactive protein	0–8 mg/L	6	6	95
Glutamic acid decarboxylase antibody	Negative
N-Methyl-D-aspartate antibody	Negative
α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor antibody	Negative
Leucine-rich glioma activated 1 antibody	Negative
Contactin-associated protein 2 antibody	Negative
Thyroid peroxidase antibody	Negative
Collapsing response mediator protein antibodies	Negative
Borrelia serology	Negative
HIV	Negative
Tuberculosis Quantiferon test	Negative
Hepatitis B and C viruses	Negative
Treponema pallidum particle agglutination assay	Negative
Autoantibody screen*	Negative
Cerebrospinal fluid normal value		Day 3		Day 10
Glucose level	2.50–4.50 mmol/L	2.96 mmol/L		2.94 mmol/L
Protein level	0.15–0.45 g/L	5.55 g/L		5.36 g/L
Total red cells		3717×10⁶/L
Total white cells		153×10⁶/L
Lymphocytes		80%
Gram stain		No organisms seen		No organisms seen
Culture		No growth
Cryptococcal antigen		Not detected
Enterovirus, parechovirus, HSV1, HSV2, VZV DNA		Not detected
Cytology		No malignant cells
Serum glucose		6.6
		Day 10
SARS-CoV-2 RNA nose and throat swab		Detected

*Antinuclear antibody, anti-double stranded DNA antibody, anti-extractable nuclear antigen antibody, antimitochondrial antibody, smooth muscle autoantibody, parietal cell antibody, Liver-kidney microsomal antibody.
GFR, Glomerular Filtration Rate; HSV, Herpes Simplex Virus; VZV, Varicella Virus.