skip to main content

Pre-Surgical Bleeding Assessment — NDEB AFK MCQ

Instant feedback + full explanation. One question, done properly.

EasyOral SurgeryPre-Surgical Bleeding AssessmentNDEB AFK

Which laboratory value is most useful for assessing a patient's risk of excessive bleeding before an oral surgical procedure?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — INR (International Normalised Ratio) and platelet count

INR (reflecting the extrinsic/common pathway coagulation status, measured by PT) and platelet count are the most clinically useful screening tests for bleeding risk before oral surgery. INR is essential for patients on warfarin or with liver disease. Platelet count identifies thrombocytopenia (count <150,000/μL; surgical bleeding risk increases below 50,000/μL). aPTT is added if intrinsic pathway disorders are suspected (haemophilia). A thorough bleeding history (personal and family) is equally important.

Reference: Hoffbrand – Postgraduate Haematology, 7th ed., 2016