Oral Anticoagulants | Dosing Protocol

Purpose: To start warfarin therapy in a patient with deep vein thrombosis using the algorithm of Fennerty et al.

Info MyLikes MyPaths

Evaluation

Are you evaluating a patient with deep vein thrombosis who is receiving a heparin infusion?

Yes

INR before oral anticoagulants given

Consult with hematologist.

Hour of first dose (in military format, without minutes), given during afternoon or evening

Data for Day 2

INR at 0:00

Data for Day 3

INR at 0:00

Data for Day 4

INR at 0:00

Results

Please fill out required fields.

Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Dose of warfarin to give at

Data for Day 2

Data complete?

Dose of warfarin to give at

Data for Day 3

Data complete?

Dose of warfarin to give at

Data for Day 4

Data complete?

Maintenance dose of warfarin to give

MedicalAlgorithms.com APIs

Power Your Solutions with 5,000+ Automated Medical Analytics

Seamlessly integrate our API library of over 5,000 evidence-based medical analytics into your products and workflows. Our APIs help you:

Build custom, automated clinical workflows tailored to your organization's needs.
Enhance your clinical decision support with advanced, evidence-based analytics.
Streamline revenue cycle management by integrating clinical analytics into billing, coding, and compliance processes.
Support payment and pre-approval processes with automated, standardized medical criteria.
Embed proven medical algorithms directly into your systems and services for consistent, high-quality outcomes.

With MedicalAlgorithms.com APIs, you can accelerate innovation, improve efficiency, and deliver more accurate, data-driven care—without reinventing the wheel.

Explore Medal API

Caution: A qualified health practitioner should verify all results.
Keep patient data confidential and comply with all legal requirements.

Please visit our website Medicalalgorithms.com for Description and Interpretation and further algorithms you may want to consider in the next steps of your evaluation. All information should be verified by a qualified health professional, and all use is subject to Medicalalgorithms.com Terms and Conditions. © Copyright Medicalalgorithms.com Limited

Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Risk Factors
- Risk Factors of Hylek et al for Excessive Warfarin Anticoagulation
- Algorithm of Dunn for the Perioperative Management of a Patient Receiving Oral Anticoagulation
Clinical Diagnosis, Including Family History For Genetics
- Warfarin (Coumadin) Resistance Testing
- Warfarin Resistance Associated with Poor Intestinal Absorption
Laboratory Tests
- Warfarin (Coumadin) Resistance Testing

Therapy

Selection
- Algorithm of Dunn for the Perioperative Management of a Patient Receiving Oral Anticoagulation
Pharmacogenetics
- Regression Model of Wells et al for Predicting Warfarin Dose Using Pharmacogenetics
Drug Interactions
- Daily Warfarin Dosage Adjustment for Patient Receiving Long-Term Amiodarone Therapy
Dosage Calculations
Dosage Adjustments
Failure Handling And Therapy Escalation

Monitoring

Response To Therapy
- Warfarin (Coumadin) Resistance Testing
Adverse Effects
- Risk Factors of Hylek et al for Excessive Warfarin Anticoagulation
Drug Levels
- Warfarin (Coumadin) Resistance Testing
Overdose And Reversal
- Warfarin (Coumadin) Resistance Testing
- Risk Factors of Hylek et al for Excessive Warfarin Anticoagulation

Specialty

Hematology Oncology
Clinical Laboratory
Pharmacology, clinical

Objective

dosage calculations
dosage adjustments

ICD-10

I80 - Phlebitis and thrombophlebitis

Info

Purpose: To start warfarin therapy in a patient with deep vein thrombosis using the algorithm of Fennerty et al.

Specialty: Hematology Oncology, Clinical Laboratory, Pharmacology, clinical

Objective: dosage calculations, dosage adjustments

ICD-10: I80,

Save Data

Identifier

Enter 1 to 5 characters as ID

Email

Your registered email

Other

Email to

Please separate multiple email IDs with comma (,)

Consult Report

Identifier

Enter 1 to 5 characters as ID

Add to MyPath

Select path

New path