Free Revised Geneva Score Calculator

The Revised Geneva Score is a widely recognized clinical prediction rule that quantifies the probability of pulmonary embolism (PE) in patients presenting to the emergency department. This PE risk assessment tool is built on eight straightforward clinical criteria—no invasive procedures are required—making it practical for bedside use. By summing the points assigned to each present criterion, clinicians obtain a numerical score that stratifies patients into risk categories, helping guide the need for D‑dimer testing and imaging. As with any decision aid, the Revised Geneva Score calculator is designed to supplement, not supplant, a physician’s overall clinical evaluation.

Why Risk Stratification Matters in Pulmonary Embolism

Pulmonary embolism is a life‑threatening condition caused by a blood clot that lodges in a pulmonary artery, most often originating from a deep vein thrombosis (DVT) in the lower extremities. When left undiagnosed, the mortality rate of PE approaches 30%; with prompt diagnosis and appropriate treatment, the rate falls to about 2%. Because symptoms—dyspnea, chest pain, cough, hemoptysis, syncope—are nonspecific and vary widely, PE is frequently missed. Autopsy studies indicate that only about one‑fifth of cases are identified while the patient is still alive. Standardized tools like the Geneva Score calculator (both the original and revised versions) were developed to unify diagnostic criteria, accelerate clinical decision‑making, and reduce misdiagnosis.

Criteria and Scoring of the Revised Geneva Score

The Revised Geneva Score, updated in 2006, eliminated the need for invasive measurements and reduced reliance on subjective judgment compared with earlier rules. Each of the following parameters is assigned a specific point value. Only the points corresponding to criteria that are present should be added. Note that heart rate is considered in two categories; the category that best matches the patient’s heart rate is used (the two are mutually exclusive).

Parameter	Points (if present)
Age > 65 years	1
History of DVT or PE	3
Surgery with general anesthesia or fracture within the past month	2
Active malignancy (solid or hematologic)	2
Unilateral lower‑limb pain	3
Hemoptysis	2
Heart rate 75–94 beats/min	3
Heart rate ≥ 95 beats/min	5
Unilateral lower‑limb edema or pain on deep vein palpation	4

The maximum possible total is 22 points (when the highest heart‑rate option is taken). The sum constitutes the patient’s Revised Geneva Score.

Interpreting the Score

The total score can be interpreted using either a two‑level or a three‑level stratification scheme. Both approaches have been validated in clinical studies and are commonly used in practice.

Two‑level classification:

• 0–5 points: PE unlikely (PE probability ~16%)
• ≥6 points: PE probable (PE probability ~38%)

Three‑level classification:

• 0–3 points: Low risk (PE probability 8–10%)
• 4–10 points: Intermediate risk (PE probability 22–28%)
• ≥11 points: High risk (PE probability 48–74%)

The choice between the two‑level and three‑level system may depend on institutional protocols or physician preference. In general, patients with low or intermediate probability should have a D‑dimer test performed. If the D‑dimer level is elevated—using an age‑adjusted cutoff for those older than 50 years (age × 0.1 mg/L)—a CT pulmonary angiogram is required to confirm or exclude PE. Patients with high probability (≥6 in two‑level, or ≥11 in three‑level) typically proceed directly to CT without preceding D‑dimer testing, because a negative D‑dimer does not adequately rule out PE in this group.

Incorporating the Score into the Diagnostic Workup

The initial assessment of a patient with suspected PE includes a thorough history, vital signs, and a physical examination focused on signs of DVT. The Revised Geneva Score (or an equivalent tool such as the Wells criteria) should be calculated at this stage. Based on the resulting risk category, the clinician decides on D‑dimer testing and imaging.

Because the Revised Geneva Score does not require a judgment about the likelihood of alternative diagnoses—a component present in the Wells criteria—it is more objective and simpler to apply consistently, especially in busy emergency settings.

Simplified Geneva Score

In 2008, the Simplified Geneva Score was introduced to improve memorability. In this version, nearly all criteria carry a weight of 1 point; only a heart rate ≥ 95 beats/min is assigned 2 points. The scoring table is as follows:

Parameter	Points (if present)
Age > 65 years	1
History of DVT or PE	1
Surgery or fracture within the past month	1
Active malignancy	1
Unilateral lower‑limb pain	1
Hemoptysis	1
Heart rate 75–94 beats/min	1
Heart rate ≥ 95 beats/min	2
Unilateral edema or pain on deep vein palpation	1

Interpretation schemes for the Simplified Geneva Score are also available:

Two‑level:

• 0–2 points: PE unlikely (probability ~11.5%)
• ≥3 points: PE probable (probability ~42%)

Three‑level:

• 0–1 points: Low risk (7–9.7%)
• 2–4 points: Intermediate risk (22–29%)
• ≥5 points: High risk (45–64%)

Multiple studies have demonstrated that the Revised Geneva Score, the Simplified Geneva Score, and the Wells Rule perform similarly when used together with D‑dimer measurement.

Venous Thromboembolism Prophylaxis

Preventing venous thromboembolism (VTE) is a complementary goal. Prophylaxis may include:

• Appropriate anticoagulation therapy
• Early ambulation
• Compression stockings or devices
• Management of kidney or liver insufficiency that affects clotting
• Early detection of inherited thrombophilias
• Effective treatment of malignancies
• Inferior vena cava filter placement in selected patients

This Revised Geneva Score calculator is provided as an educational and decision‑support tool. It does not replace a comprehensive clinical assessment by a qualified healthcare professional. Any health concerns should be discussed with a physician.