What are the limitations of the caprini score?

While the caprini score is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the caprini score to ensure safe bedside use and optimal diagnostic accuracy.

How does the caprini score compare to other hematology scores?

The caprini score is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the caprini score free to use?

Yes. OpiCalc provides the caprini score completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

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Caprini VTE Risk

Caprini Score: Comprehensive VTE risk assessment. Select all that apply. Total score determines the risk group and recommended thromboprophylaxis intensity.

1 Point Each

+1 per item

2 Points Each

+2 per item

3 Points Each

+3 per item

5 Points Each

+5 per item

Total Caprini Score

0

VTE Risk Category

Very Low

Predicted Risk: < 0.5%

Very Low Risk: Early ambulation is the primary recommendation.

Guidelines & Evidence

Clinical Details

Section 1

When to Use

Evaluating the risk of venous thromboembolism (VTE) in surgical patients.

Customizing the duration and intensity of pharmacologic thromboprophylaxis.

Standardizing VTE risk assessment across varied surgical specialties (e.g., ortho, gyn, plastics).

Patient Population

Primarily validated in general, vascular, and plastic surgery cohorts. Remains the most comprehensive tool for surgical patients due to its extensive list of risk factors.

When Not to Rely on This Score Alone

Medical patients — the Padua and IMPROVE scores are specifically derived for non-surgical cohorts.

Pediatric patients — the risk factors for VTE in children differ significantly from adults.

Acute VTE — this score predicts risk; it is not a diagnostic tool for suspected active DVT/PE.

Section 2

Formula & Logic

Scoring Weights

Points (1, 2, 3, or 5) are assigned based on the persistence and severity of individual risk factors. The total score estimates the probability of VTE within 30 days of surgery.

Risk Levels

Score	Risk Level	VTE Risk	Recommended Prophylaxis
0 - 1	Very Low	< 0.5%	Early ambulation
2	Low	1.5%	Mechanical prophylaxis (IPC/ES)
3 - 4	Moderate	3.0%	Pharmacologic (LMWH/Heparin) or Mechanical
≥ 5	High	6.0%	Pharmacologic plus Mechanical

Section 3

Pearls/Pitfalls

Granularity vs. Simplicity

While tools like the Rogers Score are simpler, the Caprini Score's ability to incorporate subtle factors (e.g., family history, factor V Leiden, inflammatory bowel disease) makes it superior for identifying "high-risk" outliers in otherwise stable populations.

Extended Prophylaxis

For "Highest Risk" patients (Score ≥ 9), consider extended prophylaxis (up to 30 days) following major cancer or abdominal surgery.

Section 4

Evidence Appraisal

Primary Score

Thrombosis risk assessment as a guide to quality patient care.

Caprini JA. • Disease-a-Month. 2005;51(2-3):70-78.

View Source

Section 5

Literature

Development

Developed by Dr. Joseph Caprini at Northwestern University. It has since been validated in over 250,000 surgical patients across diverse surgical domains.

Last Comprehensive Review: 2026

Related Hematology Tools

Absolute Neutrophil Count

MCV-based Anaemia Algorithm

Mentzer Index

England & Fraser Index

Shine & Lal Index

Corrected Reticulocyte Count

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