Patients with a history of an untreated malignancy (except local skin cancers)
Ischemic stroke (determined using the Questionnaire for Verifying Stroke-Free Status (QVSFS)
Patients on renal dialysis or with end-stage hepatic dysfunction
Acute infection/inflammation (Temperature > 101.5 F, and/or WBC> 15, 000)
Inability to obtain informed consent from patient or next of kin
Anticoagulant use (warfarin or heparin)

NCT01650792_exc_T1
Qualifier
untreated
NCT01650792_exc_T2
Condition
malignancy
NCT01650792_exc_T3
Condition
local skin cancers
NCT01650792_exc_T4
Negation
except
NCT01650792_exc_T5
Condition
Ischemic stroke
NCT01650792_exc_T6
Qualifier
Questionnaire for Verifying Stroke-Free Status (QVSFS)
NCT01650792_exc_T7
Procedure
renal dialysis
NCT01650792_exc_T8
Condition
end-stage hepatic dysfunction
NCT01650792_exc_T9
Qualifier
Acute
NCT01650792_exc_T10
Condition
infection
NCT01650792_exc_T11
Condition
inflammation
NCT01650792_exc_T12
Scope
infection/inflammation
NCT01650792_exc_T13
Measurement
Temperature
NCT01650792_exc_T14
Measurement
WBC
NCT01650792_exc_T15
Value
> 101.5 F
NCT01650792_exc_T16
Value
> 15, 000
NCT01650792_exc_T18
Drug
Anticoagulant
NCT01650792_exc_T19
Drug
warfarin
NCT01650792_exc_T20
Drug
heparin
NCT01650792_exc_T21
Scope
warfarin or heparin