liminfoClinical Score Calculator
Free web tool: Clinical Score Calculator
GCS Total
15 / 15
Mild
About Clinical Score Calculator
The Clinical Score Calculator provides three validated medical scoring systems used in emergency medicine, internal medicine, and acute care settings. The Glasgow Coma Scale (GCS) tab assesses level of consciousness by scoring three components — Eye opening (1–4), Verbal response (1–5), and Motor response (1–6) — and summing them to produce a total out of 15. The tool then classifies the result as Mild (13–15), Moderate (9–12), or Severe (3–8) traumatic brain injury, which directly guides triage, monitoring intensity, and treatment decisions.
The Wells DVT Score tab implements the Wells Criteria for deep vein thrombosis probability. Ten clinical findings are presented as checkboxes, each contributing +1 point except for "Alternative diagnosis equally likely" which subtracts 2 points. The resulting total stratifies patients into Low risk (<1 point), Moderate risk (1–2 points), or High risk (≥3 points) for DVT, informing decisions about Doppler ultrasound ordering or empiric anticoagulation. The CHA₂DS₂-VASc tab scores eight risk factors for stroke in patients with atrial fibrillation — Heart failure, Hypertension, Age ≥75 (2 points), Diabetes, Stroke/TIA history (2 points), Vascular disease, Age 65–74, and Female sex — and outputs both the score and the associated annual stroke risk percentage.
These three scoring systems are among the most frequently used validated clinical tools in bedside medicine. Medical students, residents, emergency physicians, and nurses can use this calculator for quick reference, educational practice, and workflow support. All inputs and outputs remain entirely within the browser — no patient data is transmitted, stored, or logged. The tool is bilingual (English and Korean) and fully supports dark mode for use in clinical settings with varied lighting.
Key Features
- Glasgow Coma Scale (GCS): dropdown selection for Eye (1–4), Verbal (1–5), and Motor (1–6) with total and severity classification
- GCS severity categories: Severe (3–8), Moderate (9–12), and Mild (13–15) traumatic brain injury
- Wells DVT Score: 10 clinical criteria checkboxes including the -2 point alternative diagnosis deduction
- Wells DVT risk stratification: Low (<1), Moderate (1–2), and High (≥3) probability categories
- CHA₂DS₂-VASc Score: 8 risk factors with double-weighted items (Age ≥75 and Stroke/TIA = 2 pts each)
- Annual stroke risk percentage output for each CHA₂DS₂-VASc score level (0–9)
- Bilingual interface in English and Korean for international clinical use
- 100% client-side processing — no patient data ever leaves the browser
Frequently Asked Questions
What is the Glasgow Coma Scale (GCS) used for?
GCS quantifies the level of consciousness in patients with traumatic brain injury, stroke, metabolic encephalopathy, or any cause of altered consciousness. It assesses three independent behavioral responses: eye opening, verbal response, and motor response. The total score ranges from 3 (completely unresponsive) to 15 (fully alert and oriented). It guides triage priority, intubation decisions, and monitoring intensity in emergency and critical care settings.
How do I interpret a GCS score of 8?
A GCS of 8 or below is classified as Severe traumatic brain injury and is often described as "comatose." A score of 8 or less is the traditional threshold for considering endotracheal intubation to protect the airway. Scores of 9–12 indicate Moderate injury, and 13–15 indicate Mild injury. Note that GCS alone does not determine prognosis — it must be combined with other clinical and neuroimaging findings.
What does the Wells DVT Score predict?
The Wells DVT Score predicts the pre-test probability that a patient has a deep vein thrombosis (DVT). A score of 2 or above indicates Moderate to High probability and generally warrants compression ultrasonography. A Low probability score (below 1) combined with a negative D-dimer test can safely exclude DVT without imaging in most clinical guidelines, reducing unnecessary ultrasound orders.
Why does "alternative diagnosis equally likely" subtract 2 points in the Wells score?
The Wells Criteria were designed to estimate clinical probability taking into account competing diagnoses. If a clinician identifies an equally plausible explanation for the patient's symptoms (such as a Baker's cyst or cellulitis), this reduces the clinical likelihood of DVT. The -2 point item reflects this Bayesian adjustment and can push borderline cases from Moderate to Low risk category.
What is CHA₂DS₂-VASc used for and when should anticoagulation be considered?
CHA₂DS₂-VASc estimates the annual risk of ischemic stroke or systemic embolism in patients with non-valvular atrial fibrillation. Most current guidelines (ESC, ACC/AHA) recommend anticoagulation for men with a score ≥2 and women with a score ≥3 (since female sex itself adds 1 point). Anticoagulation is generally optional for men with score 1 and not recommended for score 0 in men (score 1 in women).
Why do Age ≥75 and prior Stroke/TIA each count as 2 points in CHA₂DS₂-VASc?
Both age ≥75 and prior stroke or TIA have been identified as the strongest independent predictors of future thromboembolic events in atrial fibrillation patients. They are double-weighted (2 points each) in the score to reflect their disproportionately higher contribution to stroke risk compared to the other risk factors, which each carry 1 point.
Is this tool intended for clinical decision-making?
This tool is designed for educational use, clinical reference, and workflow support. All three scoring systems (GCS, Wells DVT, CHA₂DS₂-VASc) are validated and widely published in peer-reviewed literature. However, medical decisions must always be made by qualified clinicians who integrate these scores with the full clinical picture, patient history, and current guidelines. This tool does not replace clinical judgment.
Is patient data stored when using this calculator?
No patient data of any kind is stored or transmitted. All selections and calculations are processed entirely within the local JavaScript environment in your browser. Refreshing the page resets all inputs. No cookies, server logs, or databases are involved. The tool is safe to use in healthcare settings where data privacy is important.