Thrombin-Accelerated Quick Clotting Serum Tubes: An Evaluation with 22 Common Biochemical Analytes

Table 2

Summary statistics for RST results compared with control (SST) tubes.

Analyte	Units	𝑛	RST; mean	Range	SST; mean	Range	Diff; mean	95% CI range	𝑡-test; 𝑃 value
Urea	mmol/L	106	4.8	2.2, 17.5	4.9	2.3, 17.4	0.0	−0.6, 0.7	0.90
Creatinine	𝜇mol/L	127	81.9	46, 370	82.7	40, 371	−0.7	−12, 9	0.89
Bicarbonate	mmol/L	104	24.9	15.4, 29.9	25.0	19.0, 29.9	−0.1	−5.8, 3.8	0.71
Glucose	mmol/L	97	5.4	2.9, 20.2	5.4	2.3, 20.3	0.0	−0.3, 0.6	0.94
Sodium	mmol/L	106	140.1	132, 146	140.3	133, 148	−0.2	−4, 4	0.52
Potassium	mmol/L	108	4.2	3.4, 5.1	4.2	3.3, 5.1	0.0	−0.5, 0.5	0.70
Chloride	mmol/L	106	103.7	99, 110	103.7	98, 109	0.0	−4, 3	1.00
Total protein	g/L	107	71.9	55, 85	71.6	55, 84	0.3	−3, 4	0.69
Albumin	g/L	127	39.1	24, 49	38.8	24, 48	0.3	−2, 2	0.52
Total Bilirubin	𝜇mol/L	110	11.2	4.0, 33.0	11.4	4.4, 34.0	−0.2	−19, 4	0.80
ALP	U/L	108	66.3	28, 338	66.4	35, 331	−0.2	−13, 7	0.97
ALT	U/L	129	25.7	4, 374	25.6	4, 375	−0.2	−5, 7	0.95
AST	U/L	121	25.3	8, 465	25.6	10, 451	−0.3	−5, 14	0.96
Cholesterol	mmol/L	93	5.21	3.23, 9.39	5.18	3.17, 9.11	0.03	−0.32, 0.36	0.84
HDL	mmol/L	93	1.47	0.10, 2.72	1.48	0.66, 2.75	−0.01	−0.95, 0.20	0.86
Triglycerides	mmol/L	93	1.18	0.41, 4.83	1.16	0.41, 4.70	0.02	−0.12, 0.13	0.88
TSH	mU/L	98	2.125	0.015, 43.4	2.040	0.015, 39.9	0.085	−0.406, 3.50	0.88
fT4	pmol/L	98	11.7	4.0, 19.5	11.7	4.4, 19.4	−0.04	−3.3, 2.4	0.88
Troponin-T	𝜇g/L	86	0.003	0.003, 0.01	0.003	0.003, 0.01	−0.0002	−0.013, 0	0.44
CK-MB	𝜇g/L	86	1.86	0.71, 5.65	1.89	0.78, 5.71	−0.03	−0.19, 0.24	0.85
NT-proBNP	pg/mL	85	44.4	5.0, 229	44.1	5.0, 228	0.33	−2.6, 7.71	0.95
PSA	𝜇g/L	87	0.33	0.003, 4.60	0.34	0.003, 4.50	0.00	−0.06, 0.10	0.97

Diff: absolute difference (RST − SST).
95% CI: minimum, maximum.
Range: minimum, maximum.