Which of the following does NOT cause an elevation in D-dimer levels: acute pulmonary embolism, infection, malignancy, physical exercise, or pregnancy?

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Last updated: September 15, 2026 • View editorial policy

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D-Dimer Does NOT Increase with Physical Exercise

Among the options listed, physical exercise (option D) is the exception—it does NOT reliably cause elevation in D-dimer levels. All other conditions mentioned—acute pulmonary embolism, infection, malignancies, and pregnancy—are well-established causes of elevated D-dimer.

Evidence-Based Rationale

Conditions That DO Elevate D-Dimer

According to the 2019 ESC Guidelines for Pulmonary Embolism, D-dimer levels are elevated in several specific clinical scenarios 1, 2, 1:

Thrombotic conditions:

  • Acute pulmonary embolism (PE) and deep vein thrombosis (DVT) - D-dimer rises due to simultaneous activation of coagulation and fibrinolysis 1

Non-thrombotic conditions that elevate D-dimer:

  • Malignancy - D-dimer is more frequently elevated in cancer patients 1
  • Infection - Severe infection or inflammatory disease causes elevation 1
  • Pregnancy - D-dimer levels increase physiologically throughout pregnancy 3, 4
    • Nearly all pregnant women (99.3% antepartum, 98.8% postpartum) exceed the standard 0.5 mg/L threshold 4
    • Standard cut-offs are unsuitable in obstetric practice 5, 4

Additional conditions causing D-dimer elevation include: hospitalized patients, disseminated intravascular coagulation, recent trauma or surgery, heart failure, atrial fibrillation, advanced age, and chronic inflammatory diseases 6, 7, 8.

Physical Exercise: The Exception

Physical exercise is NOT listed among the established causes of D-dimer elevation in any of the major guidelines reviewed 1, 2, 1, 2, 9, 3, 10, 11, 6. While strenuous physical activity is mentioned in one research article as potentially elevating D-dimer 8, this is not supported by guideline-level evidence and is not included in diagnostic algorithms or clinical decision-making frameworks.

Clinical Implications

The high sensitivity but low specificity of D-dimer testing means:

  • Negative D-dimer effectively rules out PE (negative predictive value >95%) 1
  • Positive D-dimer requires clinical context - it cannot confirm PE due to numerous other causes 1

The number needed to test to exclude one PE rises from 3 in general emergency department populations to ≥10 in patients with cancer, severe infection, hospitalized patients, or pregnancy 1.

Answer: D) Physical exercise

References

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