Grading System Strength of Recommendation
Grade 1 = stronga
Grade 2 = weakerb a
A = high
Quality of Evidence B = moderate C = low
Grade 1 recommendations are strong and indicate that the benefits do, or do not, outweigh risks, burden, and costs. b Grade 2 suggests that individual patient values may lead to different choices.
Abbreviations ABI, ankle-brachial index; ACCP, American College of Chest Physicians; aPTT, activated
partial thromboplastin time; bid, twice daily; CAD, coronary artery disease; INR, international normalized ratio; MI, myocardial infarction; PAD, peripheral arterial disease; PTA, percutaneous transluminal angioplasty; rt-PA, recombinant tissue-type plasminogen activator; Rx, prescription; UFH, unfractionated heparin; y, year
Source Alonso-Coello P, Bellmunt S, McGorrian C, Anand SS, Guzman R, Criqui MH, Akl EA, Olav Vandvik P, Lansberg MG, Guyatt GH, Spencer FA. Antithrombotic therapy in peripheral artery disease: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of
Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012;141(2 Suppl): e669S-e690S. PMID: 22315275
Disclaimer
This Guideline attempts to define principles of practice that should produce high-quality patient care. It focuses on the needs of primary care practice, but also is applicable to providers at all levels. This Guideline should not be considered exclusive of other methods of care reasonably directed at obtaining the same results. The ultimate judgement concerning the propriety of any course of conduct must be made by the clinician aſter consideration of each individual patient situation. Neither IGC, the medical associations, nor the authors endorse any product or service associated with the distributor of this clinical reference tool.
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