A Study of Elevated D-dimer in Hospitalized Adults

What we are studying

Patients age 60 years or older who are hospitalized for an acute medical illness may be eligible for participation in this study. Participating in this study involves having one blood sample collected within 24 hours of admission to the hospital. This blood sample will be sent to a lab to have the level of d-dimer in the blood measured. In addition to this blood sample, the study team will also do a medical record review to collect information on participant's condition, and treatments given.

Who is Eligible

  • Genders:
    • Men
    • Women
  • Races:
    • White
    • African American
    • Asian
    • American Indian or Alaska Native
    • Native Hawaiian or Pacific Islander
    • Other
  • All Ethnicities
  • Ages 60+

Eligibility Criteria

  • Participants must be admitted to the hospital for an acute medical illness
  • Participants must not present to the ED as a trauma or require surgery
  • Patients with pulmonary embolism or deep vein thrombosis will be excluded
  • Patients currently receiving or having received anticoagulant therapy in the last 7 days will be excluded
  • Must not have had surgery within past 1 month.

What is involved

  • 1 blood sample
  • Medical record review


Participants will receive a $10.00 gift card following completion of their participation in the study.

Contact Information

Study Coordinator
[email protected]

Disclaimer: The information on this website is for general informational purposes only and SHOULD NOT be relied upon as a substitute for sound professional medical advice, evaluation or care from your physician or other qualified health care provider.