Table.

Coagulation Factor Testing and Corresponding Chromogenic Factor X Levels in a Pediatric Patient With a Prosthetic Mitral Valve

Date	INR	PT (s)	APTT (s)	Chromogenic factor X (%)
10/1	2.2	24.7	NA	47
10/2	1.8	20.3	48, 52, 180, 47	NA
10/3	2.1	23.3	41, 60, 61, 87	NA
10/4	2.3	26.2	88, 92, 86	NA
10/5	2.4	27.2	95	NA
10/6	2.3	25.4	NA	49
10/7	2.5	27.5	77	NA
10/8	2.8	31.2	44	42
10/9	3.5	NA	NA	35

APTT, activated partial thromboplastin time; INR, international normalized ratio; PT, prothrombin time.