Interactive Clinical Workbench
MedOrqis v2.1.1 Kernel
Clinical Playground
Test real clinical scenarios, run deterministic mathematical engines, and inspect step-by-step mathematical derivations without token hallucination.
Select Patient Scenario:
Cardiology & Nephrology
Elderly Diabetic Patient with Atrial Fibrillation & CKD
3 Calculators
Pediatrics & Infectious Diseases
Pediatric Acute Otitis Media Weight-Dose Capping
2 Calculators
Orthopedics & Vascular Surgery
Postoperative Knee Arthroplasty with Unilateral Calf Swelling
2 Calculators
Emergency Medicine & Pulmonology
Emergency Room Community-Acquired Pneumonia Assessment
2 Calculators
Cardiology & Health Policy
Cardiology Guidelines Divergence: ESC 2024 vs ACC/AHA 2023
2 Calculators
Orthopedics & Vascular Surgery
Postoperative Knee Arthroplasty with Unilateral Calf Swelling
62-year-old female, 10 days post total knee replacement, presents to the clinic with severe pain and unilateral swelling in her right calf (+3.5 cm compared to left side), pitting edema, and deep vein tenderness.
Recommended:
Active Calculator
2003
Wells Score for Deep Vein Thrombosis (DVT)
CRITICAL RISK
Wells PS et al. Evaluation of D-dimer in the diagnosis of suspected deep-vein thrombosis. N Engl J Med 2003;349:1227-1235; CHEST 2021 Guidelines for Antithrombotic Therapy for VTE (2003)
Wells Score for Deep Vein Thrombosis (DVT)
Applicable Population: Adult outpatients (>= 18 years) with suspected lower extremity DVT
Calculated Score:
4
points
Clinical Interpretation
High Probability / DVT Likely (4 points)
Guideline-Directed Recommendation
DVT Likely (>= 3 points; ~ 53% probability). Prompt Compression Ultrasonography (CUS) indicated. If ultrasound delayed, consider interim anticoagulation if bleeding risk low.
Clinical Alerts & Safety Warnings
- In pregnant patients or recurrent DVT, Wells score has reduced specificity; specialized obstetric/thrombosis pathways apply.
Deterministic Execution Trace
Zero-Token Arithmetic
Mathematical Formula
\text{Wells DVT} = \sum (\text{Clinical Risk Factors}) - 2 \cdot (\text{Alternative Diagnosis})
Step-by-Step Formula Progression:
1
+1: Recently bedridden > 3 days or major surgery within 12 weeks requiring anesthesia
2
+1: Localized tenderness along the distribution of the deep venous system
3
+1: Calf swelling >= 3 cm larger than asymptomatic side (measured 10 cm below tibial tuberosity)
4
+1: Pitting edema confined to the symptomatic leg
Invariant Input Payload:
{
"age_years": 62,
"active_cancer": false,
"paralysis_paresis_plaster": false,
"recently_bedridden_major_surgery": true,
"localized_tenderness_deep_vein": true,
"entire_leg_swollen": false,
"calf_swelling_gt_3cm": true,
"pitting_edema_symptomatic_leg": true,
"collateral_superficial_veins": false,
"previously_documented_dvt": false,
"alternative_diagnosis_more_likely": false
}