A patient scheduled for surgery has an HbA1c of 8%, blood pressure of 145/90 mmHg, and a platelet count of 20,000/µL. Which finding is the PRIMARY concern?

Correct answer: D. The platelet count

• A. 145/90 mmHg is stage 2 hypertension by current thresholds and should be addressed, but it is well below the 180/110 range at which elective care is deferred for hypertensive urgency.
• B. An HbA1c of 8% indicates suboptimal but not critical glycaemic control. It predicts slower healing and a modestly higher infection rate, and warrants medical liaison — but it does not make surgery immediately dangerous.
• C. They are not equal. Only the platelet count carries an immediate risk of catastrophic bleeding; the other two are chronic risk modifiers.
• D. CORRECT. A platelet count of 20,000/µL is severe thrombocytopenia and the only one of the three findings that presents an immediate threat of life-endangering haemorrhage. The working thresholds: above 50,000 generally permits routine surgery with local measures; between 30,000 and 50,000 calls for caution and haematology consultation; below 20,000 carries a risk of spontaneous bleeding. Elective surgery must be deferred and the patient referred for haematological evaluation and possible platelet transfusion.

Note: When a stem loads several abnormal values, ask which one could kill or seriously harm the patient TODAY. Chronic markers such as HbA1c and moderately raised blood pressure modify risk over time; a platelet count of 20,000 is an acute contraindication.