Uncontrollable bleeding after tooth extraction from asymptomatic mild hemophilia patients: two case reports

BMC Oral Health

Table 3 Interpretation of false APTT results

False negative results	Strenuous exercise, stress, inflammation, or pregnancy [16,17,18]
	The type of reagent used for the test [4]
	Compensatory of other higher level clotting factors [19]
	Inappropriate storage and handling conditions [3]
False positive results	FXII deficiency [20]
	Transient appearance of LAC [14, 21]
	The reduction of coagulation factors because of massive blood loss [22]
	Inappropriate storage and handling conditions [3]

ISSN: 1472-6831