Aftermath of Apixaban: Atypical Anticoagulation Aftereffect

Table 2

Additional laboratory testing ordered.

Lab test	Value	Reference range
Hepatitis C ab	Negative	Negative
Rheumatoid factor	<3.5 IU/mL	0–39 IU/mL
CCP antibodies IgG/IgA	5 units	0–19 units
Antinuclear antibodies	Negative	<1 : 80
Cytoplasmic ANCA	<1 : 20 titer	<1 : 20
Perinuclear ANCA	<1 : 20 titer	<1 : 20
Myeloperoxidase Ab	<9 U/mL	0.0–9 U/mL
Proteinase-3 Ab	<3.5 U/mL	0.0–3.5 U/mL
Atypical pANCA	<1 : 20 titer	<1 : 20
Complement C3	231.8 mg/dL	90–180 mg/dL
Complement C4	44.9 mg/dL	9–36 mg/dL
Cardiolipin IgM ab	<9 U/mL	0–12 U/mL
Cardiolipin IgG ab	<9 U/mL	0–14 U/mL
Cardiolipin IgA ab	<9 U/mL	0–11 U/mL
Cryoglobulin	Not detected	None
Beta-2 glycoprotein I IgG ab	<9 units	0–20 units
Beta-2 glycoprotein I Ig M ab	15 units	0–25 units
Beta-2 glycoprotein I Ig A ab	15 units	0–32 units