Clinical laboratory investigation of a patient with an extremely high D-dimer level: A case report

Table 1 Results of laboratory testing in our laboratory before and after patient admission

	Patient results		Reference range
	At admission (June 11)	Follow-up (June 15-26)
Leucocytes (× 109/L)	8.28	7.16	3.5-9.5
Red blood cells (× 1012/L)	4.08	3.77	3.8-5.1
Haemoglobin (g/L)	119	108	115-1
Haematocrit	0.37	0.34	0.35-0.45
Platelets (× 109/L)	237	293	125-350
Prothrombin time (s)	11.6	13.2	9-13
Prothrombin time (INR)	1.01	1.16	—
Activate partial thromboplastin time (s)	27.3	31.7	20-40
Thrombin time (seconds)	16.2	19.6	14-21
Fibrinogen (g/L)	3.4	4	2-4
Fibrinogen degradation product (µg/mL)	9.29	5.7	0-5
D-dimer (mg/L)	> 100	> 100	< 0.55
Antithrombin-III (%)	91	94	83-128
Creatine kinase-MB (ng/mL)	0.63	ND	0-5
Myoglobin (ng/mL)	50.44	ND	0-110
Cardiac troponin-I (ng/mL)	0.017	ND	0-0.04
B-type natriuretic peptide (pg/mL)	321.48	73.83	0-100
C-reactive protein (mg/L)	13	6.9	0-5
Triiodothyronine (nmol/L)	1.05	ND	0.92-2.79
Thyroxine (nmol/L)	93.46	ND	55.3-160.8
Free triiodothyronine (pmol/L)	3.46	ND	3.5-6.5
Free thyroxine (pmol/L)	18.63	ND	11.5-22.7
Thyroid-stimulating hormone (µIU/mL)	2.688	ND	0.55-4.78
Human chorionic gonadotropin (mIU/mL)	2.18	ND	0-10
Squamous cell carcinoma antigen (ng/mL)	1.1	ND	0-1.5
Alpha-fetoprotein (ng/mL)	6.37	ND	0-8.1
Carcinoembryonic antigen (ng/mL)	1.33	ND	0-5
Carbohydrate antigen 50 (IU/mL)	4.63	ND	0-25
Carbohydrate antigen 242 (IU/mL)	1.35	ND	0-20
Carbohydrate antigen 19-9 (U/mL)	17.77	ND	0-37
Carbohydrate antigen 125 (U/mL)	6.14	ND	0-35
Carbohydrate antigen 15-3 (U/mL)	5.09	ND	0-32.4
Carbohydrate antigen 72-4 (U/mL)	4.01	ND	0-8.2
Immunoglobulin A(g/L)	ND	2.83	0.7-4
Immunoglobulin G(g/L)	ND	12.9	7-16
Immunoglobulin M(g/L)	ND	0.62	0.4-2.3
Immunoglobulin E(IU/mL)	ND	19.1	< 100
Anti-streptolysin O (IU/mL)	ND	50	0-408
Rheumatoid factor (IU/mL)	ND	12.5	0-15.9
Anti-cyclic citrullinated peptide antibodies (U/mL)	ND	7	0-17

ND: Not detected.