In VTE-3, the following numerator statement mentions:

Difference between dates >= 4 day(s) of:
■AND: FIRST:
■OR: "Medication, Administered: Parenteral Anticoagulant" < 1 day(s) starts after start of ("Medication, Administered: Warfarin" during "Occurrence A of Encounter, Performed: Emergency Department Visit")
■OR: "Medication, Administered: Parenteral Anticoagulant" < 1 day(s) starts after start of ("Medication, Administered: Warfarin" during "Occurrence A of Encounter, Performed: Inpatient Encounter")
■OR: "Medication, Administered: Warfarin" < 1 day(s) starts after start of ("Medication, Administered: Parenteral Anticoagulant" during "Occurrence A of Encounter, Performed: Emergency Department Visit")
■OR: "Medication, Administered: Warfarin" < 1 day(s) starts after start of ("Medication, Administered: Parenteral Anticoagulant" during "Occurrence A of Encounter, Performed: Inpatient Encounter")
■AND: MOST RECENT:
■OR: "Medication, Administered: Parenteral Anticoagulant" during "Occurrence A of Encounter, Performed: Emergency Department Visit"
■OR: "Medication, Administered: Parenteral Anticoagulant" during "Occurrence A of Encounter, Performed: Inpatient Encounter"
■AND:
■OR: "Laboratory Test, Result: INR (result >= 2 )" <= 1 day(s) starts before start of ("Medication, Administered: Parenteral Anticoagulant" during "Occurrence A of Encounter, Performed: Inpatient Encounter")

Now the lab test has to be validated against Medication, Administered: Parenteral Anticoagulant. But which parenteral anti-coagulant is this talking about? Should it be the FIRST, MOST RECENT OR ANY PARENTERAL ANTI-COAGULANT which is given during the inpatient stay?