. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Crit Care Med. 2011 Dec;39(12):2652–2658. doi: 10.1097/CCM.0b013e3182281af5

Table 2. Comparison of ROTEM and clotting screen parameters: normal vs coagulopathic patients.

	Normal	ATC	p value

EXTEM
CT (secs)	66 (63-69)	116 (62-170)	0.068
CFT (secs)	97 (92-101)	169 (135-203)	<0.001
Alpha angle (°)	71 (71-72)	61 (57-65)	<0.001
CA5 (mm)	44 (43-44)	28 (23-33)	0.001
MCF (mm)	60 (59-60)	46 (40-52)	0.001
Clotting screen
Platelets (x10⁶/L)	245 (237-253)	174 (146-201)	<0.001
Fibrinogen (g/dL)	2.2 (2.13-2.28)	0.96 (0.74- 1.18)	<0.001

Patients defined as Normal: Prothrombin Time ratio (PTr) ≤1.2 or ATC: PTr >1.2. Values are mean (95% confidence intervals). P value: unpaired Student’s t test. Clotting Time (CT), Clot Formation Time (CFT), Clot Amplitude at 5 minutes (CA5), Maximum Clot Firmness (MCF).